View source for Origins of the American Civil War

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[[File:Sumter.jpg|thumb|upright=1.3|alt=Artwork Despite him stopping fort at center surrounded by water. The fort is on fire and shells explode in the air above it.|[[Battle of Fort Sumter]], the first hostilities of the war, as depicted by [[Currier and Ives]]]]
{{Events leading to US Civil War}}
[[File:An address - setting forth the declaration of the immediate causes which induce and justify the secession of Mississippi from the Federal Union and the ordinance of secession (IA addresssettingfo01miss).pdf|thumb|page=5|[[Mississippi Secession Convention]] (1861)]]
The origins of the [[American Civil War]] were rooted in the desire of the [[Southern United States|Southern states]] to preserve and expand the [[Slavery in the United States|institution of slavery]].<ref>{{Cite journal |last=Woods |first=M. E. |date=2012-08-20 |title=What Twenty-First-Century Historians Have Said about the Causes of Disunion: A Civil War Sesquicentennial Review of the Recent Literature |url=https://doi.org/10.1093/jahist/jas272 |journal=[[Journal of American History]] |volume=99 |issue=2 |pages=415–439 |doi=10.1093/jahist/jas272 |issn=0021-8723}}</ref> Historians in the 21st century overwhelmingly agree on the centrality of slavery in the conflict, but they disagree on the [[Union (American Civil War)|North]]'s reasons for refusing to allow the Southern states to secede.<ref>Aaron Sheehan-Dean, "A Book for Every Perspective: Current Civil War and Reconstruction Textbooks", ''Civil War History'' (2005) 51#3 pp. 317–324</ref> The [[historical negationism|negationist]] [[Lost Cause of the Confederacy|Lost Cause]] ideology denies that slavery was the principal cause of the secession, a view disproven by historical evidence, notably some of the seceding states' own [[Ordinance of Secession|secession documents]].<ref>{{Cite journal |last=Loewen |first=James W. |date=2011 |title=Using Confederate Documents to Teach About Secession, Slavery, and the Origins of the Civil War |url=https://www.jstor.org/stable/23210244 |journal=OAH Magazine of History |volume=25 |issue=2 |pages=35–44 |doi=10.1093/oahmag/oar002 |jstor=23210244 |issn=0882-228X |quote=Confederate leaders themselves made it plain that slavery was the key issue sparking secession. |access-date=April 7, 2023 |archive-date=April 7, 2023 |archive-url=https://web.archive.org/web/20230407021438/https://www.jstor.org/stable/23210244 |url-status=live |url-access=subscription }}</ref> After leaving the Union, Mississippi issued a declaration stating, "Our position is thoroughly identified with the institution of slavery—the greatest material interest of the world."<ref name="Coates-2015">{{cite news |last1=Coates |first1=Ta-Nehisi |title=What This Cruel War Was Over |url=https://www.theatlantic.com/politics/archive/2015/06/what-this-cruel-war-was-over/396482/ |work=The Atlantic |date=23 June 2015 |archive-url=https://archive.today/20171031234944/https://www.theatlantic.com/politics/archive/2015/06/what-this-cruel-war-was-over/396482/ |archive-date=2017-10-31 |language=en}}</ref><ref>{{cite web |title=A Declaration of the Immediate Causes which Induce and Justify the Secession of the State of Mississippi from the Federal Union.|work=The Declaration of Causes of Seceding States |url=https://www.battlefields.org/learn/primary-sources/declaration-causes-seceding-states#South_Carolina |via=American Battlefield Trust |access-date=12 September 2024 |year=1861}}</ref>

Background factors in the run up to the Civil War were [[Second Party System|partisan politics]], [[Abolitionism in the United States|abolitionism]], [[Nullification (U.S. Constitution)|nullification]] versus [[Secession in the United States|secession]], Southern and Northern nationalism, [[Manifest destiny|expansionism]], [[Panic of 1857|economics]], and modernization in the [[Antebellum South|antebellum period]]. As a panel of historians emphasized in 2011, "while slavery and its various and multifaceted discontents were the primary cause of disunion, it was disunion itself that sparked the war."<ref>[[Elizabeth R. Varon]], Bruce Levine, Marc Egnal, and Michael Holt at a plenary session of the organization of American Historians, March 17, 2011, reported by David A. Walsh. "Highlights from the 2011 Annual Meeting of the Organization of American Historians in Houston, Texas". [http://www.hnn.us/articles/137673.html HNN online] {{Webarchive|url=https://web.archive.org/web/20111204081355/http://hnn.us/articles/137673.html|date=December 4, 2011}}</ref>

[[Abraham Lincoln]] won the [[1860 United States presidential election|1860 presidential election]] as an opponent of the extension of slavery into the [[territories of the United States|U.S. territories]]. His victory triggered declarations of [[secession in the United States|secession]] by seven slave states of the [[Deep South]], all of whose riverfront or coastal economies were based on cotton that was cultivated by slave labor. They formed the [[Confederate States of America]] after Lincoln was elected in November 1860 but before [[First inauguration of Abraham Lincoln|he took office]] in March 1861. Nationalists in the North and "Unionists" in the South refused to accept the declarations of secession. No foreign government ever recognized the Confederacy. The refusal of the U.S. government, under President [[James Buchanan]], to relinquish its forts that were in territory claimed by the Confederacy, proved to be a major turning point leading to war. The war itself began on April 12, 1861, when [[Battle of Fort Sumter|Confederate forces bombarded the Union's Fort Sumter]], in the harbor of [[Charleston, South Carolina]].

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== Slavery ==
{{Main|Slavery in the United States}}
Disagreements between slave states and free states were the main cause of disunion and the war.<ref>{{cite speech|last=Gallagher|first=Gary|title=Remembering the Civil War|event=Sesquicentennial of the Start of the Civil War|date=February 21, 2011|location=Miller Center of Public Affairs UV|publisher=[[C-Span]]|url=https://www.c-span.org/video/?298125-1/remembering-civil-war|access-date=August 29, 2017|language=en|quote=Issues related to the institution of slavery precipitated secession.... It was not states' rights, it was not the tariff. It was not unhappiness with manners and customs that led to secession and eventually to war. It was a cluster of issues profoundly dividing the nation along a fault line delineated by the institution of slavery.}}</ref>{{sfn|McPherson|1988|pp=vii–viii}} Slavery had been controversial during the framing of the [[Constitution of the United States|Constitution]] in 1787, which, because of compromises, ended up with [[Slavery and the United States Constitution|proslavery and antislavery]] features.<ref>{{cite journal |first1=Keith L. |last1=Dougherty |first2=Jac C. |last2=Heckelman |title=Voting on slavery at the Constitutional Convention |journal=[[Public Choice (journal)|Public Choice]] |volume=136 |issue=3–4 |year=2008 |page=293|doi=10.1007/s11127-008-9297-7 |s2cid=14103553 |doi-access=free }}</ref> The issue had confounded the nation since its inception and increasingly separated the US into a [[Slave states and free states|slaveholding South and a free North]]. The issue was exacerbated by the country's rapid territorial expansion, which repeatedly brought the question of whether new territory should be slaveholding or free. The issue had dominated politics for decades. Attempts to resolve the matter included the [[Missouri Compromise]] and [[Compromise of 1850]], but these only postponed the showdown over slavery that would lead to the war.{{sfn|McPherson|1988|pp=7–8}}

The motivations of the supporters of the Union and the Confederacy, respectively, were not uniform;<ref>{{cite book |last=McPherson |first=James M. |author1-link=James M. McPherson |year= 1994 |title=What They Fought For 1861–1865 |page=[https://archive.org/details/whattheyfoughtfo00mcph/page/62 62] |url=https://archive.org/details/whattheyfoughtfo00mcph/page/62 |publisher=[[Louisiana State University Press]] |isbn=978-0-8071-1904-4}}</ref><ref>{{cite book |last=McPherson |first=James M. |date=1997 |title=For Cause and Comrades |page=[https://archive.org/details/forcausecomrades00mcph/page/39 39] |url=https://archive.org/details/forcausecomrades00mcph/page/39 |publisher=Oxford University Press |isbn=978-0-19-509023-9|ref=none}}</ref> some Northern soldiers were indifferent on the subject of slavery, but a general pattern can be established.<ref>{{cite speech|last=Gallagher|first=Gary|title=Remembering the Civil War|event=Sesquicentennial of the Start of the Civil War|date=February 21, 2011|location=Miller Center of Public Affairs UV|publisher=C-Span|url=https://www.c-span.org/video/?298125-1/remembering-civil-war|access-date=August 29, 2017|language=en|quote=The loyal citizenry initially gave very little thought to emancipation in their quest to save the union.... Most loyal citizens, though profoundly prejudice[d] by 21st century standards[,] embraced emancipation as a tool to punish slaveholders, weaken the Confederacy, and protect the Union from future internal strife. A minority of the white populous invoked moral grounds to attack slavery, though their arguments carried far less weight than those presenting emancipation as a military measure necessary to defeat the rebels and restore the Union.}}</ref> As the war dragged on, more Unionists came to support slavery's abolition, either to cripple the Confederacy or on moral grounds.<ref>{{cite web |title=Union Soldiers Condemn Slavery |url=https://shec.ashp.cuny.edu/items/show/723 |website=SHEC: Resources for Teachers |publisher=The City University of New York Graduate Center |access-date=2 February 2023}}</ref> Confederate soldiers fought to protect a Southern society of which slavery was an integral part.<ref>{{cite news|last=Eskridge |first=Larry |title=After 150 years, we still ask: Why 'this cruel war'? |url=http://www.cantondailyledger.com/topstories/x1868081570/After-150-years-we-still-ask-Why-this-cruel-war |newspaper=[[Canton Daily Ledger]] |location=[[Canton, Illinois]] |date=January 29, 2011 |access-date=January 29, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110201183505/http://www.cantondailyledger.com/topstories/x1868081570/After-150-years-we-still-ask-Why-this-cruel-war |archive-date=February 1, 2011}}</ref><ref>{{Cite journal|last1=Kuriwaki|first1=Shiro|last2=Huff|first2=Connor|last3=Hall|first3=Andrew B.|date=2019|title=Wealth, Slaveownership, and Fighting for the Confederacy: An Empirical Study of the American Civil War|journal=[[American Political Science Review]]|language=en|volume=113|issue=3|pages=658–673|doi=10.1017/S0003055419000170|issn=0003-0554|doi-access=free}}</ref> Opponents of slavery considered it an [[Anachronism|anachronistic]] evil incompatible with [[Republicanism in the United States|republicanism]]. The strategy of the anti-slavery forces was containment—to stop the expansion of slavery and thereby put it on a path to extinction.<ref>{{cite book|last=Weeks|first=William E.|title=The New Cambridge History of American Foreign Relations|url={{google books|plainurl=y|id=9D4TAwc93VoC}}|year=2013|publisher=Cambridge University Press|location=Cambridge; New York|isbn=978-1-107-00590-7 |page=240}}</ref> The slaveholding interests in the South denounced this as infringing upon their constitutional rights.<ref>{{cite book|last=Olsen|first=Christopher J.|title=Political Culture and Secession in Mississippi: Masculinity, Honor, and the Antiparty Tradition, 1830–1860|url={{google books|plainurl=y|id=RrBb2ThDuCkC|page=237}}|year=2002|publisher=Oxford University Press|location=Oxford; New York|isbn=978-0-19-516097-0 |page=237}}</ref> With large parts of the Southern population in slavery, [[white Southerners]] believed the emancipation of slaves would destroy Southern families, society, and the South's economy, with large amounts of capital invested in slaves and longstanding fears of a free black population.<ref>{{cite book |last=Chadwick |first=French Ensor |author-link=French Ensor Chadwick |url=https://archive.org/stream/causescivilwar02chadgoog#page/n30/mode/1up |title=Causes of the civil war, 1859–1861 |year=1906 |page=8 |via=[[Internet Archive]]}}</ref> Many Southerners feared a repeat of the [[1804 Haitian massacre]],<ref name="ReferenceA">{{cite book |first=Kevin C |last=Julius |title=The Abolitionist Decade, 1829–1838: A Year-by-Year History of Early Events in the Antislavery Movement |publisher=[[McFarland & Company]] |year=2004}}</ref><ref name="April page 171">{{cite book |title=Six Days in April: Lincoln and the Union in Peril |first=Frank B. |last=Marcotte |publisher=[[Algora Publishing]] |year=2004 |page=171}}</ref> when former slaves murdered most of Haiti's white population after the [[Haitian Revolution|successful slave revolution]]. Historian [[Thomas Fleming (historian)|Thomas Fleming]] points to the historical phrase "a disease in the public mind" used by critics of this idea and proposes it contributed to the segregation in the [[Jim Crow laws|Jim Crow]] era following emancipation.<ref>{{cite book |title=A Disease in the Public Mind: A New Understanding of Why We Fought the Civil War |last=Fleming |first=Thomas |author-link=Thomas Fleming (historian) |year=2014 |publisher=Hachette Books |isbn=978-0-306-82295-7}}</ref> These fears were exacerbated by the [[John Brown's raid on Harpers Ferry|1859 attempt]] by [[John Brown (abolitionist)|John Brown]] to instigate an armed slave rebellion in the South.{{sfn|McPherson|1988|p=210}}

==Differences in population==
By the mid-19th century the United States had become a nation of two distinct regions. The [[Slave states and free states|free states]] in [[New England]], the [[Northeastern United States|Northeast]], and the [[Midwestern United States|Midwest]]<ref>The [[Mason–Dixon line]] and the [[Ohio River]] were key boundaries.</ref> had a rapidly growing economy based on family farms, industry, mining, commerce, and transportation, with a large and rapidly growing urban population. Their growth was fed by a high birth rate and large numbers of European immigrants, especially from [[Irish Americans|Ireland]] and [[German Americans|Germany]]. The South was dominated by a settled [[Plantation economy|plantation system]] based on slavery; there was some rapid growth taking place in the Southwest (e.g., [[Texas]]), based on high birth rates and high migration from the Southeast; there was also immigration by Europeans, but in much smaller number. The heavily rural South had few cities of any size, and little manufacturing except in border areas such as [[St. Louis]] and [[Baltimore]]. Slave owners controlled politics and the economy, although about 75% of white Southern families owned no slaves.<ref>{{cite book|author=Paul Boyer|title=The Enduring Vision, Volume I: To 1877|url=https://books.google.com/books?id=jqawVJRMd8YC&pg=PA343|year=2010|publisher=Cengage Learning|page=343|isbn=978-0495800941|display-authors=etal|access-date=December 11, 2015|archive-date=May 14, 2016|archive-url=https://web.archive.org/web/20160514055111/https://books.google.com/books?id=jqawVJRMd8YC&pg=PA343|url-status=live}}</ref>

Overall, the Northern population was growing much more quickly than the Southern population, which made it increasingly difficult for the South to dominate the national government. By the time of the 1860 election, the heavily agricultural Southern states as a group had fewer [[United States Electoral College|Electoral College]] votes than the rapidly [[Industrial Revolution|industrializing]] Northern states. Abraham Lincoln was able to win the [[1860 United States presidential election|1860 presidential election]] without even being on the ballot in ten Southern states. Southerners felt a loss of federal concern for Southern pro-slavery political demands, and their continued domination of the federal government was threatened. This political calculus provided a very real basis for Southerners' worry about the relative political decline of their region, due to the North growing much faster in terms of population and industrial output.

==Historical tensions and compromises==

===Early Republic===
{{See also|Three-fifths Compromise}}[[File:US Secession map 1861.svg|thumb|upright=1.3|1861 United States Secession Crisis map:
{{legend|#A40000| States that seceded before April 15, 1861}}
{{legend|#EF2929| States that seceded after April 15, 1861}}
{{legend|#FCE94F| States that permitted slavery, but did not secede}}
{{legend|#204A87| States of the Union that banned slavery}}
{{legend|#D3D7CF| U.S. territories, under [[Union Army]] control}}|alt=1861 Map of U.S. states and territories showing two phases of secession]]
At the time of the American Revolution, the institution of slavery was firmly established in the American colonies. It was most important in the six southern states from Maryland to Georgia, but the total of a half million slaves were spread out through all of the colonies. In the South, 40 percent of the population was made up of slaves, and as Americans moved into Kentucky and the rest of the southwest, one-sixth of the settlers were slaves. By the end of the Revolutionary War, the [[New England]] states provided most of the American ships that were used in the foreign slave trade, while most of their customers were in Georgia and [[Carolinas|the Carolinas]].<ref>Fehrenbacher pp. 15–17. Don Fehrenbacher wrote, "As a racial caste system, slavery was the most distinctive element in the southern social order. The slave production of [[staple crop]]s dominated southern agriculture and eminently suited the development of a national market economy."</ref>

During this time many Americans found it easy to reconcile slavery with [[The Bible and slavery|the Bible]], but a growing number rejected this defense of slavery. A small antislavery movement, led by the [[Quakers]], appeared in the 1780s, and by the late 1780s all of the states had banned the international slave trade.{{citation needed|date=March 2023}} No serious national political movement against slavery developed, largely due to the overriding concern over achieving national unity.<ref>Fehrenbacher, pp. 16–18</ref> When the Constitutional Convention met, slavery was the one issue "that left the least possibility of compromise, the one that would most pit morality against pragmatism."<ref>Goldstone, p. 13</ref> In the end, many would take comfort in the fact that the word "slavery" never occurs in the Constitution. The [[Three-fifths Compromise|three-fifths clause]] was a compromise between those (in the North) who wanted no slaves counted, and those (in the South) who wanted all the slaves counted. The Constitution (Article IV, section 4) also allowed the federal government to suppress domestic violence, a provision that could be used against slave revolts. Congress could not ban the importation of slaves for 20 years. The need for the approval of three-fourths of the states for [[Article Five of the United States Constitution#Procedures for amending the Constitution|amendments]] made the constitutional abolition of slavery virtually impossible.<ref>McDougall, p. 318</ref>

The importation of slaves into the United States [[Slave Trade Act of 1794|was restricted in 1794]], and finally [[Act Prohibiting Importation of Slaves|banned in 1808]], the earliest date the Constitution permitted (Article 1, section 9). Many Americans believed that the passage of these laws had finally resolved the issue of slavery in the United States.<ref>Forbes, p. 4</ref> Any national discussion that might have continued over slavery was drowned out by other issues such as trade embargoes, maritime competition with Great Britain and France, the [[Barbary Wars]], and the [[War of 1812]]. A notable exception to this quiet regarding slavery was the New Englanders' association of [[War of 1812#Internal American political conflict|their frustration with the war]] with their resentment of the three-fifths clause that seemed to allow the South to dominate national politics.<ref>Mason, pp. 3–4</ref>

During the aftermath of the American Revolution (1775–1783), the Northern states (north of the [[Mason–Dixon line]] separating Maryland from Pennsylvania and Delaware) abolished slavery by 1804, although in some states older slaves were turned into [[Indentured servitude|indentured servants]] who could not be bought or sold. In the [[Northwest Ordinance]] of 1787, Congress (at that time under the [[Articles of Confederation]]) barred slavery from the Midwestern territory north of the [[Ohio River]].<ref>Paul Finkelman, "Slavery and the Northwest Ordinance: A Study in Ambiguity", ''Journal of the Early Republic'' 6.4 (1986): 343–370.</ref> When Congress organized the territories acquired through the [[Louisiana Purchase]] of 1803, there was no ban on slavery.<ref>John Craig Hammond, "'They Are Very Much Interested in Obtaining an Unlimited Slavery': Rethinking the Expansion of Slavery in the Louisiana Purchase Territories, 1803–1805", ''Journal of the Early Republic'' 23.3 (2003): 353–380.</ref>

===Missouri Compromise===
{{Main|Missouri Compromise}}

With the admission of Alabama as a [[Slave states and free states|slave state]] in 1819, the U.S. was equally divided, with 11 slave states and 11 free states. Later that year, Congressman [[James Tallmadge Jr.]] of New York initiated an uproar in the South when he proposed two amendments to a bill admitting [[Missouri]] to the Union as a free state. The first would have barred slaves from being moved to Missouri, and the second would have freed at age 25 all Missouri slaves born after admission to the Union.<ref>Freehling, p. 144</ref> The admission of the new state of Missouri as a slave state would give the slave states a majority in the Senate, while passage of the [[Tallmadge Amendment]] would give the free states a majority.

The Tallmadge amendments passed the House of Representatives but failed in the Senate when five Northern senators voted with all the Southern senators.<ref>Freehling, p. 149. In the House the votes for the Tallmadge amendments in the North were 86–10 and 80–14 in favor, while in the South the vote to oppose was 66–1 and 64–2.</ref> The question was now the admission of Missouri as a slave state, and many leaders shared [[Thomas Jefferson]]'s fear of a crisis over slavery{{snd}}a fear that Jefferson described as "a fire bell in the night". The crisis was solved by the [[Missouri Compromise]], in which [[Massachusetts]] agreed to cede control over its relatively large, sparsely populated and disputed [[Enclave and exclave|exclave]], the [[District of Maine]]. The compromise allowed [[Maine]] to be admitted to the Union as a free state at the same time that Missouri was admitted as a slave state. The Compromise also banned slavery in the [[Louisiana Purchase]] territory north and west of the state of Missouri along [[Parallel 36°30′ north#In the United States|parallel 36°30′ north]]. The Missouri Compromise quieted the issue until its limitations on slavery were repealed by the [[Kansas–Nebraska Act]] of 1854.<ref>{{Cite web |url=https://www.loc.gov/rr/program/bib/ourdocs/Missouri.html |title=Missouri Compromise |website=[[Library of Congress]] |access-date=January 28, 2018 |archive-date=November 29, 2017 |archive-url=https://web.archive.org/web/20171129191309/http://www.loc.gov/rr/program/bib/ourdocs/Missouri.html |url-status=live }}</ref>

In the South, the Missouri crisis reawakened old fears that a strong federal government could be a fatal threat to slavery. The [[Jeffersonian democracy|Jeffersonian coalition]] that united southern planters and northern farmers, mechanics and artisans in opposition to the threat presented by the [[Federalist Party]] had started to dissolve after the [[War of 1812]].<ref>Forbes, pp. 6–7</ref> It was not until the Missouri crisis that Americans became aware of the political possibilities of a sectional attack on slavery, and it was not until the [[mass politics]] of [[Andrew Jackson]]'s administration that this type of organization around this issue became practical.<ref>Mason p. 8</ref>

===Nullification crisis===
{{Main|Nullification crisis}}

The [[American System (economic plan)|American System]], advocated by [[Henry Clay]] in Congress and supported by many nationalist supporters of the War of 1812 such as [[John C. Calhoun]], was a program for rapid economic modernization featuring protective tariffs, [[internal improvements]] at federal expense, and a national bank. The purpose was to develop American industry and international commerce. Since iron, coal, and water power were mainly in the North, this tax plan was doomed to cause rancor in the South, where economies were agriculture-based.<ref>{{Cite web |url=http://www.vcdh.virginia.edu/solguide/VUS06/essay06c.html |title=Leah S. Glaser, "United States Expansion, 1800–1860" |access-date=May 21, 2007 |archive-date=December 31, 2006 |archive-url=https://web.archive.org/web/20061231041625/http://www.vcdh.virginia.edu/solguide/VUS06/essay06c.html |url-status=live }}</ref><ref>Richard J. Ellis, Review of ''The Shaping of American Liberalism: The Debates over Ratification, Nullification, and Slavery''. by David F. Ericson, ''William and Mary Quarterly'', Vol. 51, No. 4 (1994), pp. 826–829</ref> Southerners claimed it demonstrated favoritism toward the North.<ref>[http://www.millercenter.virginia.edu/index.php/Ampres/essays/tyler/biography/2 John Tyler, Life Before the Presidency]{{dead link|date=March 2018 |bot=InternetArchiveBot |fix-attempted=yes }}</ref><ref>Jane H. Pease, William H. Pease, "The Economics and Politics of Charleston's Nullification Crisis", ''Journal of Southern History'', Vol. 47, No. 3 (1981), pp. 335–362</ref>
[[File:Andrew Jackson.jpg|thumb|left|President [[Andrew Jackson]] viewed South Carolina's attempts to nullify the tariffs of 1828 and 1832 as tantamount to treason.]]

The nation suffered an economic downturn throughout the 1820s, and South Carolina was particularly affected. The highly protective Tariff of 1828 (called the "[[Tariff of Abominations]]" by its detractors), designed to protect American industry by taxing imported manufactured goods, was enacted into law during the last year of the presidency of [[John Quincy Adams]]. Opposed in the South and parts of New England, the expectation of the tariff's opponents was that with the election of [[Andrew Jackson]] the tariff would be significantly reduced.<ref>Remini, ''Andrew Jackson'', v. 2 pp. 136–137. Niven pp. 135–137. Freehling, ''Prelude to Civil War'' p. 143</ref>

By 1828 South Carolina state politics increasingly organized around the tariff issue. When the Jackson administration failed to take any actions to address their concerns, the most radical faction in the state began to advocate that the state declare the tariff null and void within South Carolina. In Washington, an open split on the issue occurred between Jackson and his vice-president John C. Calhoun, the most effective proponent of the constitutional theory of state nullification through his 1828 "[[South Carolina Exposition and Protest]]".<ref>Craven p. 65. Niven pp. 135–137. Freehling, ''Prelude to Civil War'' p. 143</ref>

Congress enacted a new [[Tariff of 1832|tariff in 1832]], but it offered the state little relief, resulting in the most dangerous sectional crisis since the Union was formed. Some militant South Carolinians even hinted at withdrawing from the Union in response. The newly elected South Carolina legislature then quickly called for the election of delegates to a state convention. Once assembled, the convention voted to declare null and void the tariffs of 1828 and 1832 within the state. President Andrew Jackson responded firmly, declaring nullification an act of [[treason]]. He then took steps to strengthen federal forts in the state.

Violence seemed a real possibility early in 1833 as Jacksonians in Congress introduced a "[[Force Bill]]" authorizing the President to use the federal Army and Navy in order to enforce acts of Congress. No other state had come forward to support South Carolina, and the state itself was divided on its willingness to continue the showdown with the federal government. The crisis ended when Clay and Calhoun worked to devise a compromise tariff. Both sides later claimed victory. Calhoun and his supporters in South Carolina claimed a victory for nullification, insisting that it had forced the revision of the tariff. Jackson's followers, however, saw the episode as a demonstration that no single state could assert its rights by independent action.

Calhoun, in turn, devoted his efforts to building up a sense of Southern solidarity so that when another standoff should come, the whole section might be prepared to act as a bloc in resisting the federal government. As early as 1830, in the midst of the crisis, Calhoun identified the right to own slaves{{snd}}the foundation of the plantation agricultural system{{snd}}as the chief southern minority right being threatened:

{{Blockquote|I consider the tariff act as the occasion, rather than the real cause of the present unhappy state of things. The truth can no longer be disguised, that the peculiar domestick {{sic}} institution of the Southern States and the consequent direction which that and her soil have given to her industry, has placed them in regard to taxation and appropriations in opposite relation to the majority of the Union, against the danger of which, if there be no protective power in the reserved rights of the states they must in the end be forced to rebel, or, submit to have their paramount interests sacrificed, their domestic institutions subordinated by Colonization and other schemes, and themselves and children reduced to wretchedness.<ref>Ellis, Richard E. ''The Union at Risk: Jacksonian Democracy, States' Rights, and the Nullification Crisis'' (1987), p. 193; Freehling, William W. ''Prelude to Civil War: The Nullification Crisis in South Carolina 1816–1836''. (1965), p. 257</ref><ref>Ellis p. 193. Ellis further notes that "Calhoun and the nullifiers were not the first southerners to link slavery with states' rights. At various points in their careers, [[John Taylor of Caroline|John Taylor]], [[John Randolph of Roanoke|John Randolph]], and [[Nathaniel Macon]] had warned that giving too much power to the federal government, especially on such an open-ended issue as internal improvement, could ultimately provide it with the power to emancipate slaves against their owners' wishes."</ref>}}

On May 1, 1833, Jackson wrote of this idea, "the tariff was only the pretext, and disunion and Southern confederacy the real object. The next pretext will be the negro, or slavery question."<ref>[[Jon Meacham]] (2009), ''[[American Lion (book)|American Lion: Andrew Jackson in the White House]]'', p. 247; ''Correspondence of Andrew Jackson'', Vol. V, p. 72.</ref>

The issue appeared again after 1842's [[Black Tariff]]. A period of relative free trade followed 1846's [[Walker Tariff]], which had been largely written by Southerners. Northern industrialists (and some in western Virginia) complained it was too low to encourage the growth of industry.<ref>Richard Hofstadter, "The Tariff Issue on the Eve of the Civil War." ''American Historical Review'' (1938) 44#1 pp. 50–55 [https://www.jstor.org/stable/1840850 in JSTOR] {{Webarchive|url=https://web.archive.org/web/20161017035830/https://www.jstor.org/stable/1840850 |date=October 17, 2016 }}</ref>

===Gag Rule debates===
{{Main|Gag rule (United States)}}

From 1831 to 1836 [[William Lloyd Garrison]] and the [[American Anti-Slavery Society]] initiated a campaign to petition Congress to end [[slavery in the District of Columbia]] and all federal territories. Hundreds of thousands of petitions were sent, with the number reaching a peak in 1835.<ref>Varon (2008) p. 109. Wilentz (2005) p. 451</ref>

The [[United States House of Representatives|House]] passed the Pinckney Resolutions on May 26, 1836. The first of these stated that Congress had no constitutional authority to interfere with slavery in the states and the second that it "ought not" do so in the District of Columbia. The third resolution, known from the beginning as the "gag rule", provided that:

{{Blockquote|All petitions, memorials, resolutions, propositions, or papers, relating in any way, or to any extent whatsoever, to the subject of slavery or the abolition of slavery, shall, without being either printed or referred, be laid on the table and that no further action whatever shall be had thereon.<ref>Miller (1995) pp. 144–146</ref>}}

The first two resolutions passed by votes of 182 to 9 and 132 to 45. The gag rule, supported by Northern and Southern Democrats as well as some Southern Whigs, was passed with a vote of 117 to 68.<ref>Miller (1995) pp. 209–210</ref>

Former President [[John Quincy Adams]], who was elected to the House of Representatives in 1830, became an early and central figure in the opposition to the gag rules.<ref>Wilentz (2005) pp. 470–472</ref> He argued that they were a direct violation of the [[First Amendment to the United States Constitution|First Amendment]] right "to petition the Government for a redress of grievances". A majority of Northern [[Whig Party (United States)|Whigs]] joined the opposition. Rather than suppress anti-slavery petitions, however, the gag rules only served to offend Americans from Northern states, and dramatically increase the number of petitions.<ref>Miller, 112</ref>

Since the original gag was a resolution, not a standing House Rule, it had to be renewed every session, and the Adams' faction often gained the floor before the gag could be imposed. However, in January 1840, the House of Representatives passed the Twenty-first Rule, which prohibited even the reception of anti-slavery petitions and was a standing House rule. Now the pro-petition forces focused on trying to revoke a standing rule. The Rule raised serious doubts about its constitutionality and had less support than the original Pinckney gag, passing only by 114 to 108. Throughout the gag period, Adams' "superior talent in using and abusing parliamentary rules" and skill in baiting his enemies into making mistakes, enabled him to evade the rule and debate the slavery issues. The gag rule was finally rescinded on December 3, 1844, by a strongly sectional vote of 108 to 80, all the Northern and four Southern Whigs voting for repeal, along with 55 of the 71 Northern Democrats.<ref>Miller, pp. 476, 479–481</ref>

===Antebellum South and the Union===
There had been a continuing contest between the states and the national government over the power of the latter{{snd}}and over the loyalty of the citizenry{{snd}}almost since the founding of the republic. The [[Kentucky and Virginia Resolutions]] of 1798, for example, had defied the [[Alien and Sedition Acts]], and at the [[Hartford Convention]], [[New England]] voiced its opposition to President [[James Madison]] and the [[War of 1812]], and discussed secession from the Union.

====Southern culture====
{{See also|Slavery in the United States}}
[[File:Cottonfieldpanorama-edited.jpg|thumb|upright=3|Picking [[cotton]] in [[Georgia (U.S. state)|Georgia]]]]
Although a minority of free Southerners owned slaves, free Southerners of all classes nevertheless defended the institution of slavery<ref>Huston p. 41. Huston writes, "on at least three matters southerners were united. First, slaves were property. Second, the sanctity of southerners' property rights in slaves was beyond the questioning of anyone inside or outside of the South. Third, slavery was the only means of adjusting social relations properly between Europeans and Africans."</ref>{{snd}}threatened by the rise of free labor abolitionist movements in the Northern states{{snd}}as the cornerstone of their social order.

Per the 1860 census, the percentage of slaveholding families was as follows:<ref>Bonekemper III, Edward H. (2015) ''The Myth of the Lost Cause: Why the South fought the Civil War and Why the North Won''. Regnery Publishing p. 39</ref>
* 26% in the 15 Slave states (AL, AR, DE, FL, GA, KY, LA, MD, MS, MO, NC, SC, TN, TX, VA)
* 16% in the 4 Border states (DE, KY, MD, MO)
* 31% in the 11 Confederate states (AL, AR, FL, GA, LA, MS, NC, SC, TN, TX, VA)
* 37% in the first 7 Confederate states (AL, FL, GA, LA, MS, SC, TX)
* 25% in the second 4 Confederate states (AR, NC, TN, VA)

Mississippi was the highest at 49%, followed by South Carolina at 46%.
[[File:Confederate 100 Dollars.jpg|thumb|upright=1.3|Slaves working in the fields, on the Confederate $100 bill, 1862–63. On the left is [[John C. Calhoun]], on the right [[Columbia (personification)|Columbia]].]]
Based on a system of [[Plantation complexes in the Southern United States|plantation]] slavery, the social structure of the South was far more stratified and patriarchal than that of the North. In 1850 there were around 350,000 slaveholders in a total free Southern population of about six million. Among slaveholders, the concentration of slave ownership was unevenly distributed. Perhaps around 7 percent of slaveholders owned roughly three-quarters of the slave population. The largest slaveholders, generally owners of large plantations, represented the top stratum of Southern society. They benefited from [[economies of scale]] and needed large numbers of slaves on big plantations to produce cotton, a highly profitable labor-intensive crop.{{citation needed|date = December 2015}}

Per the 1860 Census, in the 15 slave states, slaveholders owning 30 or more slaves (7% of all slaveholders) owned approximately 1,540,000 slaves (39% of all slaves).<ref>{{Cite web |url=https://www2.census.gov/prod2/decennial/documents/1860b-08.pdf |title=Archived copy |access-date=January 11, 2018 |archive-date=August 17, 2017 |archive-url=https://web.archive.org/web/20170817153640/https://www2.census.gov/prod2/decennial/documents/1860b-08.pdf |url-status=live }}</ref>(PDF p.&nbsp;64/1860 Census p.&nbsp;247)

In the 1850s, as large plantation owners outcompeted smaller farmers, more slaves were owned by fewer planters. Yet poor whites and small farmers generally accepted the political leadership of the planter elite. Several factors helped explain why slavery was not under serious threat of internal collapse from any move for democratic change initiated from the South. First, given the opening of new territories in the West for white settlement, many non-slaveowners also perceived a possibility that they, too, might own slaves at some point in their life.<ref name="Brinkley, 1986">{{cite book |last=Brinkley |first=Alan |title=American History: A Survey |location=New York |publisher=McGraw-Hill |year=1986 |page=328}}</ref>

[[File:Scourged back by McPherson & Oliver, 1863, retouched.jpg|thumb|upright=.8|Violent repression of slaves was a common theme in abolitionist literature in the North. Above, this famous 1863 photo of a slave, [[Gordon (slave)|Gordon]], deeply scarred from whipping by an overseer, was distributed by abolitionists to illustrate what they saw as the barbarism of Southern society.]]
Second, small free farmers in the South often embraced [[Racism in the United States|racism]], making them unlikely agents for internal democratic reforms in the South.<ref name="Moore, 1966">{{cite book |last=Moore |first=Barrington |title=Social Origins of Dictatorship and Democracy |url=https://archive.org/details/socialoriginsofd00barr |url-access=registration |location=New York |publisher=Beacon Press |year=1966 |page=[https://archive.org/details/socialoriginsofd00barr/page/117 117]|isbn=9780807050750 }}</ref> The principle of [[white supremacy]], accepted by almost all white Southerners of all classes, made slavery seem legitimate, natural, and essential for a civilized society. Racial discrimination was completely legal. White racism in the South was sustained by official systems of repression such as the [[slave codes]] and elaborate codes of speech, behavior, and social practices illustrating the subordination of blacks to whites. For example, the "[[slave patrol]]s" were among the institutions bringing together southern whites of all classes in support of the prevailing economic and racial order. Serving as slave "patrollers" and "overseers" offered white Southerners positions of power and honor in their communities. Policing and punishing blacks who transgressed the regimentation of slave society was a valued community service in the South, where the fear of free blacks threatening law and order figured heavily in the public discourse of the period.{{citation needed|date = December 2015}}

Third, many [[yeoman|yeomen]] and small farmers with a few slaves were linked to elite planters through the market economy.<ref name="North, 1961">{{cite book |last=North |first=Douglas C. |title=The Economic Growth of the United States 1790–1860 |publisher=Englewood Cliffs |year=1961 |page=130}}</ref> In many areas, small farmers depended on local planter elites for vital goods and services, including access to [[cotton gin]]s, markets, feed and livestock, and even loans (since the banking system was not well developed in the antebellum South). Southern tradesmen often depended on the richest planters for steady work. Such dependency effectively deterred many white non-slaveholders from engaging in any political activity that was not in the interest of the large slaveholders. Furthermore, whites of varying social class, including poor whites and "plain folk" who worked outside or in the periphery of the market economy (and therefore lacked any real economic interest in the defense of slavery) might nonetheless be linked to elite planters through extensive kinship networks. Since [[inheritance]] in the South was often unequitable (and generally favored eldest sons), it was not uncommon for a poor white person to be perhaps the first cousin of the richest plantation owner of his county and to share the same militant support of slavery as his richer relatives. Finally, there was no [[secret ballot]] at the time anywhere in the United States{{snd}}this innovation did not become widespread in the U.S. until the 1880s. For a typical white Southerner, this meant that casting a ballot against the wishes of the establishment meant running the risk of being socially [[ostracism|ostracized]].{{citation needed|date = December 2015}}

Thus, by the 1850s, Southern slaveholders and non-slaveholders alike felt increasingly encircled psychologically and politically in the national political arena because of the rise of [[Free Soil Party|free soilism]] and [[abolitionism]] in the Northern states. Increasingly dependent on the North for manufactured goods, for commercial services, and for loans, and increasingly cut off from the flourishing agricultural regions of the Northwest, they faced the prospects of a growing abolitionist movement in the North.

Historian [[William C. Davis (historian)|William C. Davis]] disputes that Southern culture was different from that of Northern states or that it was a cause of the war, stating, "Socially and culturally the North and South were not much different. They prayed to the same deity, spoke the same language, shared the same ancestry, sang the same songs. National triumphs and catastrophes were shared by both." Davis argues that slavery, not culture, was the cause of the war: "For all the myths they would create to the contrary, the only significant and defining difference between them was slavery, where it existed and where it did not, for by 1804 it had virtually ceased to exist north of Maryland. Slavery demarked not just their labor and economic situations, but power itself in the new republic."<ref>{{Cite book|first=William C.|last=Davis|author-link=William C. Davis (historian)|url=https://www.google.com/search?tbm=bks&hl=en&q=%22slavery%20and%20say%20that%20Southerners%20would%20have%20seceded%20and%20fought%20over%20it%22|quote=Inextricably intertwined in the question was slavery, and it only became the more so in the years that followed.... [S]o long as the number of slave states was the same as or greater than the number of free states, then in the Senate the South had a check on the government.|isbn=0-7432-2771-9|page=9|title=Look Away!: A History of the Confederate States of America|date=2002|access-date=March 19, 2016|location=New York|publisher=The Free Press|archive-date=April 30, 2022|archive-url=https://web.archive.org/web/20220430221004/https://www.google.com/search?tbm=bks&hl=en&q=%22slavery+and+say+that+Southerners+would+have+seceded+and+fought+over+it%22|url-status=live}}</ref>

====Militant defense of slavery====
With the outcry over developments in Kansas strong in the North, defenders of slavery{{snd}}increasingly committed to a way of life that abolitionists and their sympathizers considered obsolete or immoral{{snd}}articulated a militant pro-slavery ideology that would lay the groundwork for secession upon the election of a Republican president. Southerners waged a vitriolic response to political change in the North. Slaveholding interests sought to uphold their constitutional rights in the territories and to maintain sufficient political strength to repulse "hostile" and "ruinous" legislation. Behind this shift was the growth of the cotton textile industry in the North and in Europe, which left slavery more important than ever to the Southern economy.<ref>Elizabeth Fox-Genovese and Eugene D. Genovese, ''Slavery in White and Black: Class and Race in the Southern Slaveholders' New World Order'' (2008)</ref>

====Abolitionism====
Southern spokesmen greatly exaggerated the power of abolitionists, looking especially at the great popularity of ''[[Uncle Tom's Cabin]]'' (1852), the novel and play by [[Harriet Beecher Stowe]] (whom Abraham Lincoln reputedly called "the little woman that started this great war"). They saw a vast growing abolitionist movement after the success of ''[[The Liberator (newspaper)|The Liberator]]'' in 1831 by [[William Lloyd Garrison]]. The fear was a [[race war]] by blacks that would massacre whites, especially in counties where whites were a small minority.<ref>{{cite book|author=Stanley Harrold|title=The Abolitionists and the South, 1831–1861|url=https://books.google.com/books?id=gKQeBgAAQBAJ&pg=PA45|year=2015|publisher=University Press of Kentucky|pages=45, 149–150|isbn=978-0813148243}}</ref>

The South reacted with an elaborate intellectual defense of slavery. [[J.&nbsp;D.&nbsp;B. De Bow]] of New Orleans established ''[[De&nbsp;Bow's Review]]'' in 1846, which quickly grew to become the leading Southern magazine, warning about the dangers of depending on the North economically. ''De Bow's Review'' also emerged as the leading voice for secession. The magazine emphasized the South's economic inequality, relating it to the concentration of manufacturing, shipping, banking and international trade in the North. Searching for Biblical passages endorsing slavery and forming economic, sociological, historical and scientific arguments, slavery went from being a "necessary evil" to a "positive good". Dr. [[John H. Van&nbsp;Evrie]]'s book ''Negroes and Negro slavery: The First an Inferior Race: The Latter Its Normal Condition''{{snd}}setting out the arguments the title would suggest{{snd}}was an attempt to apply scientific support to the Southern arguments in favor of race-based slavery.<ref>{{cite book|title=Fleshing Out America: Race, Gender, and the Politics of the Body in American Literature, 1833–1879|page=19|first=Carolyn|last=Sorisio|date=2002|publisher=[[University of Georgia Press]]|location=Athens|isbn=0820326372|url=https://books.google.com/books?id=u8t1wHF4Z24C|access-date=August 24, 2014}}</ref>

Latent sectional divisions suddenly activated derogatory sectional imagery which emerged into sectional ideologies. As industrial capitalism gained momentum in the North, Southern writers emphasized whatever aristocratic traits they valued (but often did not practice) in their own society: courtesy, grace, [[chivalry]], the slow pace of life, orderly life and leisure. This supported their argument that slavery provided a more humane society than industrial labor.<ref>{{cite book|author1=Peter P. Hinks|author2=John R. McKivigan|title=Encyclopedia of Antislavery and Abolition|url=https://books.google.com/books?id=d7b_trbfXugC&pg=PA258|year=2007|publisher=Greenwood |page=258|isbn=978-0313331435}}</ref> In his ''Cannibals All!'', [[George Fitzhugh]] argued that the antagonism between labor and capital in a free society would result in "[[Robber baron (industrialist)|robber barons]]" and "pauper slavery", while in a slave society such antagonisms were avoided. He advocated enslaving Northern factory workers, for their own benefit. Abraham Lincoln, on the other hand, denounced such Southern insinuations that Northern wage earners were fatally fixed in that condition for life. To Free Soilers, the stereotype of the South was one of a diametrically opposite, static society in which the slave system maintained an entrenched anti-democratic aristocracy.{{citation needed|date = December 2015}}

====Southern fears of modernization====
According to historian [[James M. McPherson]], exceptionalism applied not to the South but to the North after the North ended slavery and launched an industrial revolution that led to urbanization, which in turn led to increased education, which led to various reform movements, especially abolitionism, gaining strength. The fact that seven immigrants out of eight settled in the North (and the fact that most immigrants viewed slavery with disfavor), compounded by the fact that twice as many whites left the South for the North as vice versa, contributed to the South's defensive-aggressive political behavior. The ''[[Charleston Mercury]]'' wrote that on the issue of slavery the North and South "are not only two Peoples, but they are rival, hostile Peoples."<ref name="McPhersonExceptionalism">[[James M. McPherson]], "Antebellum Southern Exceptionalism: A New Look at an Old Question", ''Civil War History'' 29 (September 1983)</ref> As ''De Bow's Review'' said, "We are resisting revolution.... We are not engaged in a Quixotic fight for the rights of man.... We are conservative."<ref name="McPhersonExceptionalism" />

[[Allan Nevins]] argued that the Civil War was an "irrepressible" conflict, adopting a phrase from Senator [[William H. Seward]]. Nevins synthesized contending accounts emphasizing moral, cultural, social, ideological, political, and economic issues. In doing so, he brought the historical discussion back to an emphasis on social and cultural factors. Nevins pointed out that the North and the South were rapidly becoming two different peoples, a point made also by historian [[Avery Craven]]. At the root of these cultural differences was the problem of slavery, but fundamental assumptions, tastes, and cultural aims of the regions were diverging in other ways as well. More specifically, the North was rapidly modernizing in a manner some perceived as threatening to the South. Historian McPherson explains:<ref name="McPhersonExceptionalism" />

<blockquote> When secessionists protested in 1861 that they were acting to preserve traditional rights and values, they were correct. They fought to preserve their constitutional liberties against the perceived Northern threat to overthrow them. The South's concept of republicanism had not changed in three-quarters of a century; the North's had. ... The ascension to power of the Republican Party, with its ideology of competitive, egalitarian free-labor capitalism, was a signal to the South that the Northern majority had turned irrevocably towards this frightening, revolutionary future.</blockquote>

Harry L. Watson has synthesized research on antebellum southern social, economic, and political history. Self-sufficient [[yeomen]], in Watson's view, "collaborated in their own transformation" by allowing promoters of a market economy to gain political influence. Resultant "doubts and frustrations" provided fertile soil for the argument that southern rights and liberties were menaced by Black Republicanism.<ref>"Conflict and Collaboration: Yeomen, Slaveholders, and Politics in the Antebellum South", ''Social History'' 10 (October 1985): 273–298. quote at p. 297.</ref>

J. Mills Thornton III explained the viewpoint of the average white Alabamian. Thornton contends that Alabama was engulfed in a severe crisis long before 1860. Deeply held principles of freedom, equality, and autonomy, as expressed in [[Republicanism in the United States|Republican values]], appeared threatened, especially during the 1850s, by the relentless expansion of market relations and commercial agriculture. Alabamians were thus, he judged, prepared to believe the worst once Lincoln was elected.<ref>Thornton, ''Politics and Power in a Slave Society: Alabama, 1800–1860'' (Louisiana State University Press, 1978)</ref>

===Sectional tensions and the emergence of mass politics===
{{quote box
|align =right
|width = 25%
|quote = The cry of Free Man was raised, not for the extension of liberty to the black man, but for the protection of the liberty of the white.
|source = {{snd}}[[Frederick Douglass]]<ref>James A. Rawley, Race and Politics: "Bleeding Kansas" and the Coming of the Civil War (New York, 1969), 12, 151</ref>
}}

The politicians of the 1850s were acting in a society in which the traditional restraints that suppressed sectional conflict in the 1820s and 1850s{{snd}}the most important of which being the stability of the two-party system{{snd}}were being eroded as this rapid extension of democracy went forward in the North and South. It was an era when the mass political party galvanized voter participation to 80% or 90% turnout rates, and a time in which politics formed an essential component of American mass culture. Historians agree that political involvement was a larger concern to the average American in the 1850s than today. Politics was, in one of its functions, a form of mass entertainment, a spectacle with rallies, parades, and colorful personalities. Leading politicians, moreover, often served as a focus for popular interests, aspirations, and values.{{citation needed|date = December 2015}}
[[File:Frederick Douglass (2).jpg|left|thumb|upright=.8|Abolitionist [[Frederick Douglass]]]]

Historian Allan Nevins, for instance, writes of political rallies in 1856 with turnouts of anywhere from twenty to fifty thousand men and women. Voter turnouts even ran as high as 84% by 1860. An abundance of new parties emerged 1854–56, including the Republicans, People's party men, Anti-Nebraskans, Fusionists, [[Know Nothing]]s, Know-Somethings (anti-slavery nativists), Maine Lawites, Temperance men, Rum Democrats, Silver Gray Whigs, Hindus, Hard Shell Democrats, Soft Shells, Half Shells and Adopted Citizens. By 1858, they were mostly gone, and politics divided four ways. Republicans controlled most Northern states with a strong Democratic minority. The Democrats were split North and South and fielded two tickets in 1860. Southern non-Democrats tried different coalitions; most supported the Constitutional Union party in 1860.{{citation needed|date = December 2015}}

Many Southern states held constitutional conventions in 1851 to consider the questions of nullification and secession. With the exception of South Carolina, whose convention election did not even offer the option of "no secession" but rather "no secession without the collaboration of other states", the Southern conventions were dominated by Unionists who voted down articles of secession.{{citation needed|date = December 2015}}

===Economics===
Historians today generally agree that economic conflicts were not a major cause of the war. Though an economic basis to the sectional crisis was popular among the "Progressive school" of historians from the 1910s to the 1940s, few professional historians now subscribe to this explanation.<ref>McPherson (2007) pp. 4–7. James M. McPherson wrote in referring to the Progressive historians, the Vanderbilt agrarians, and revisionists writing in the 1940s, "While one or more of these interpretations remain popular among the Sons of Confederate Veterans and other Southern heritage groups, few historians now subscribe to them."</ref> According to economic historian Lee A. Craig, "In fact, numerous studies by economic historians over the past several decades reveal that economic conflict was not an inherent condition of North-South relations during the antebellum era and did not cause the Civil War."<ref>Craig in Woodworth, ed. ''The American Civil War: A Handbook of Literature and Research'' (1996), p. 505.</ref>

When numerous groups tried at the last minute in 1860–61 to find a compromise to avert war, they did not turn to economic policies. The three major attempts at compromise, the [[Crittenden Compromise]], the [[Corwin Amendment]] and the Washington Peace Conference, addressed only the slavery-related issues of fugitive slave laws, personal liberty laws, slavery in the territories and interference with slavery within the existing slave states.<ref>Donald 2001 pp. 134–138</ref>

====Economic value of slavery to the South====
Historian James L. Huston emphasizes the role of slavery as an economic institution. In October 1860 [[William Lowndes Yancey]], a leading advocate of secession, placed the value of Southern-held slaves at $2.8 billion (~${{Format price|{{Inflation|index=US-GDP|value=2800000000|start_year=1860}}}} in {{Inflation/year|US-GDP}}).<ref>Huston pp. 24–25. Huston lists other estimates of the value of slaves; James D. B. De Bow puts it at $2 billion in 1850, while in 1858 Governor James Pettus of Mississippi estimated the value at $2.6 billion in 1858.</ref> Huston writes:

{{Blockquote|Understanding the relations between wealth, slavery, and property rights in the South provides a powerful means of understanding southern political behavior leading to disunion. First, the size dimensions of slavery are important to comprehend, for slavery was a colossal institution. Second, the property rights argument was the ultimate defense of slavery, and white southerners and the proslavery radicals knew it. Third, the weak point in the protection of slavery by property rights was the federal government. ... Fourth, the intense need to preserve the sanctity of property rights in Africans led southern political leaders to demand the nationalization of slavery{{snd}}the condition under which slaveholders would always be protected in their property holdings.<ref>Huston, "''Calculating the Value of the Union''", p. 25</ref>}}

The [[cotton gin]] greatly increased the efficiency with which cotton could be harvested, contributing to the consolidation of "[[King Cotton]]" as the backbone of the economy of the Deep South, and to the entrenchment of the system of slave labor on which the cotton plantation economy depended. Any chance that the South would industrialize was over.{{citation needed|date = December 2015}}

The tendency of [[monoculture]] cotton plantings to lead to soil exhaustion created a need for cotton planters to move their operations to new lands, and therefore to the westward expansion of slavery from the [[East Coast of the United States|Eastern seaboard]] into new areas (e.g., Alabama, Mississippi, and beyond to [[East Texas]]).<ref>{{Cite web |url=http://www.sc.edu/uscpress/2007/3681.html |title=Soil Exhaustion as a Factor in the Agricultural History of Virginia and Maryland, 1606–1860<!-- Bot generated title --> |access-date=May 16, 2008 |archive-date=December 3, 2008 |archive-url=https://web.archive.org/web/20081203190037/http://www.sc.edu/uscpress/2007/3681.html |url-status=live }}</ref>

====Regional economic differences====
[[File:US Slave Free 1789-1861.gif|right|thumb|upright=2|An animation showing the free/slave status of U.S. states and territories, 1789–1861]]

The South, Midwest, and Northeast had quite different economic structures. They traded with each other and each became more prosperous by staying in the Union, a point many businessmen made in 1860–61. However, [[Charles A. Beard]] in the 1920s made a highly influential argument to the effect that these differences caused the war (rather than slavery or constitutional debates). He saw the industrial Northeast forming a coalition with the agrarian Midwest against the plantation South. Critics challenged his image of a unified Northeast and said that the region was in fact highly diverse with many different competing economic interests. In 1860–61, most business interests in the Northeast opposed war.{{citation needed|date=November 2015}}

After 1950, only a few mainstream historians accepted the Beard interpretation, though it was accepted by [[Libertarianism|libertarian]] economists.<ref>[[Steven E. Woodworth|Woodworth, Steven E.]], ed. ''The American Civil War: A Handbook of Literature and Research'' (1996), 145 151 505 512 554 557 684; Richard Hofstadter, ''The Progressive Historians: Turner, Beard, Parrington'' (1969); for one dissenter see Marc Egnal. "The Beards Were Right: Parties in the North, 1840–1860". ''Civil War History'' 47, no. 1. (2001): 30–56.</ref> Historian [[Kenneth Stampp]], who abandoned Beardianism after 1950, sums up the scholarly consensus:<ref>Kenneth M. Stampp, ''The Imperiled Union: Essays on the Background of the Civil War'' (1981) p. 198</ref> "Most historians ... now see no compelling reason why the divergent economies of the North and South should have led to disunion and civil war; rather, they find stronger practical reasons why the sections, whose economies neatly complemented one another, should have found it advantageous to remain united."<ref>Also from Kenneth M. Stampp, ''The Imperiled Union'', p. 198:<blockquote>Most historians ... now see no compelling reason why the divergent economies of the North and South should have led to disunion and civil war; rather, they find stronger practical reasons why the sections, whose economies neatly complemented one another, should have found it advantageous to remain united. Beard oversimplified the controversies relating to federal economic policy, for neither section unanimously supported or opposed measures such as the protective tariff, appropriations for internal improvements, or the creation of a national banking system. ... During the 1850s, federal economic policy gave no substantial cause for southern disaffection, for policy was largely determined by prosouthern [''sic''] Congresses and administrations. Finally, the characteristic posture of the conservative northeastern business community was far from antisouthern [''sic'']. Most merchants, bankers, and manufacturers were outspoken in their hostility to antislavery agitation and eager for sectional compromise in order to maintain their profitable business connections with the South. The conclusion seems inescapable that if economic differences, real though they were, had been all that troubled relations between North and South, there would be no substantial basis for the idea of an irrepressible conflict.</blockquote></ref>

====The political economy of the Antebellum Period====
[[Peter Turchin]] theorized that a major driver of the American Civil War was economic. Using his metrics for [[civil conflict]], he identified [[elite overproduction]] and popular immiseration as forces that fueled the sectionalism that led to war. Between 1820 and 1860, average wages relative to higher incomes fell by more than 40 percent, while the expansion of the planter class threatened yeoman farmers. The rise of the [[Free Soil Party]], [[Know-Nothing]] movement, and later the Republican Party reflected a distressed political environment. Recurrent financial crises, such as the [[Panic of 1837]], severe [[U.S. state defaults in the 1840s|state debt crises]] in the 1840s, and [[Panic of 1857]], added further accelerants. The destruction of the Southern planter elite allowed Northern industrialists and [[machine politics|political machines]] to consolidate control over the economy during the [[Reconstruction Era]] and to establish a virtual monopoly on the American economy and political system through the [[Gilded Age]].<ref>{{cite magazine
 |last=Turchin
 |first=Peter
 |title=America Is Headed Toward Collapse
 |magazine=The Atlantic
 |date=2023-06-02
 |url=https://www.theatlantic.com/ideas/archive/2023/06/us-societal-trends-institutional-trust-economy/674260/
 |access-date=2025-08-07
}}</ref>

====Free labor vs. pro-slavery arguments====
Historian [[Eric Foner]] argued that a free-labor ideology dominated thinking in the North, which emphasized economic opportunity. By contrast, Southerners described free labor as "greasy mechanics, filthy operators, small-fisted farmers, and moonstruck theorists".<ref>[[James M. McPherson]], "Antebellum Southern Exceptionalism: A New Look at an Old Question". ''Civil War History'' – Volume 50, Number 4, December 2004, p. 421</ref> They strongly opposed the [[Homestead Acts|homestead laws]] that were proposed to give free farms in the west, fearing the small farmers would oppose plantation slavery. Indeed, opposition to homestead laws was far more common in secessionist rhetoric than opposition to tariffs.<ref>Richard Hofstadter, "The Tariff Issue on the Eve of the Civil War", ''The American Historical Review'' Vol. 44, No. 1 (1938), pp. 50–55 [https://www.jstor.org/stable/1840850 full text in JSTOR] {{Webarchive|url=https://web.archive.org/web/20161017035830/https://www.jstor.org/stable/1840850 |date=October 17, 2016 }}</ref> Southerners such as Calhoun argued that slavery was "a positive good", and that slaves were more civilized and morally and intellectually improved because of slavery.<ref>{{Cite web |url=http://teachingamericanhistory.org/library/index.asp?document=71 |title=John Calhoun, "Slavery a Positive Good", February 6, 1837 |access-date=April 30, 2007 |archive-url=https://web.archive.org/web/20130415091112/http://teachingamericanhistory.org/library/index.asp?document=71 |archive-date=April 15, 2013 |url-status=dead }}</ref>
[[Karl Marx]], developing his economic theories in the mid-19th century, expressed a class-based view of conditions in North America in 1861, believing "that the defeat of the 'slave-holding [[aristocracy]]' would enable the world's free workers to prosper as small landholders on America's endless frontier".<ref>
{{cite book
 |last1                = Fleche
 |first1               = Andre
 |year                 = 2012
 |chapter              = World Revolutions and the Coming of the American Civil War
 |title                = Revolution of 1861: The American Civil War in the Age of Nationalist Conflict
 |url                  = https://books.google.com/books?id=HgXyUBZCY98C
 |series               = Civil War America
 |publication-place    = Chapel Hill
 |publisher            = University of North Carolina Press
 |page                 = 5
 |isbn                 = 9780807835234
 |access-date          = 8 February 2025
}} 
</ref>

===Religious conflict over the slavery question===
[[File:Historical Geography, by John F. Smith.jpg|upright=2|thumb|An 1888 map highlights the Religious view over the slavery question.]]

Led by [[Mark Noll]], a body of scholarship<ref name="Noll, 2002">{{cite book |last=Noll |first=Mark A. |title=America's God: From Jonathan Edwards to Abraham Lincoln |publisher=Oxford University Press |year=2002 |page=640}}</ref><ref name="Noll, 2006">{{cite book |last=Noll |first=Mark A.|title=The Civil War as a Theological Crisis |publisher=UNC Press |year=2006|page=216}}</ref><ref>Hague, Euan, and Sebesta, Edward. "The U.S. Civil War as a Theological War: Confederate Christian Nationalism and the League of the South". ''Canadian Review of American Studies''. 32 #3 (2002): 253-84.</ref> has argued that the American debate over slavery became a shooting war in part because the two sides reached diametrically opposite conclusions based on reading the same authoritative source of guidance on moral questions: the [[King James Version]] of the [[Bible]].

After the [[American Revolution]] and the [[Separation of church and state|disestablishment]] of government-sponsored churches, the U.S. experienced the [[Second Great Awakening]], a massive [[Protestant]] revival. Without centralized church authorities, American Protestantism was heavily reliant on the Bible, which was read in the standard 19th-century Reformed [[hermeneutic]] of "common sense", literal interpretation as if the Bible were speaking directly about the modern American situation instead of events that occurred in a much different context, millennia ago.<ref name="Noll, 2002" /> By the mid-19th century this form of religion and Bible interpretation had become a dominant strand in American religious, moral and political discourse, almost serving as a de facto state religion.<ref name="Noll, 2002" />

The Bible, interpreted under these assumptions, seemed to clearly suggest that slavery was Biblically justified:<ref name="Noll, 2002" />

<blockquote>The pro-slavery South could point to slaveholding by the godly patriarch [[Abraham]] (Gen 12:5; 14:14; 24:35–36; 26:13–14), a practice that was later incorporated into Israelite national law (Lev 25:44–46). It was never denounced by [[Jesus]], who made slavery a model of discipleship (Mk 10:44). The [[Paul the Apostle|Apostle Paul]] supported slavery, counseling obedience to earthly masters (Eph 6:5–9; Col 3:22–25) as a duty in agreement with "the sound words of our Lord Jesus Christ and the teaching which accords with godliness" (1 Tim 6:3). Because slaves were to remain in their present state unless they could win their freedom (1 Cor 7:20–24), he sent the fugitive slave [[Onesimus]] back to his owner [[Philemon (biblical figure)|Philemon]] (Phlm 10–20). The abolitionist north had a difficult time matching the pro-slavery south passage for passage. ... Professor Eugene Genovese, who has studied these biblical debates over slavery in minute detail, concludes that the pro-slavery faction clearly emerged victorious over the abolitionists except for one specious argument based on the so-called [[Curse of Ham]] (Gen 9:18–27). For our purposes, it is important to realize that the South won this crucial contest with the North by using the prevailing hermeneutic, or method of interpretation, on which both sides agreed. So decisive was its triumph that the South mounted a vigorous counterattack on the abolitionists as infidels who had abandoned the plain words of Scripture for the secular ideology of the [[Age of Enlightenment|Enlightenment]].<ref name="Hull, 2003">{{cite journal |url=http://www.christianethicstoday.com/Issue/043/Learning%20the%20Lessons%20of%20Slavery%20By%20William%20E.%20Hull_043_05_.htm |last=Hull |first=William E. |title=Learning the Lessons of Slavery |date=February 2003 |journal=Christian Ethics Today |volume=9 |issue=43 |access-date=2007-12-19 |archive-url=https://web.archive.org/web/20071211214614/http://www.christianethicstoday.com/Issue/043/Learning%20the%20Lessons%20of%20Slavery%20By%20William%20E.%20Hull_043_05_.htm |archive-date=2007-12-11 |url-status=dead }}</ref></blockquote>

Protestant churches in the U.S., unable to agree on what God's Word said about slavery, ended up with schisms between Northern and Southern branches: the [[Methodist Episcopal Church]] in 1844, the [[Baptists in the United States|Baptists]] in 1845,<ref>Walter B. Shurden, and Lori Redwine Varnadoe, "The origins of the Southern Baptist Convention: A historiographical study." ''Baptist History and Heritage'' (2002) 37#1 pp. 71–96.</ref> and the [[Presbyterian Church in the United States|Presbyterian Church]] in 1857.<ref name="Gaustad, 1982">{{cite book |last=Gaustad |first=Edwin S. |title=A Documentary History of Religion in America to the Civil War |url=https://archive.org/details/documentaryhisto00rces |url-access=registration |publisher=Wm. B. Eerdmans Publishing Co. |year=1982 |pages=[https://archive.org/details/documentaryhisto00rces/page/491 491–502]|isbn=9780802818744 }}</ref> These splits presaged the subsequent split in the nation: "The churches played a major role in the dividing of the nation, and it is probably true that it was the splits in the churches which made a final split of the nation inevitable."<ref name="Johnson, 1976">{{cite book |last=Johnson |first=Paul |author-link=Paul Johnson (writer)|title=A History of Christianity |publisher=Simon & Schuster |year=1976 |page=438}}</ref> The conflict over how to interpret the Bible was central:

<blockquote>The theological crisis occasioned by reasoning like [conservative Presbyterian theologian James H.] Thornwell's was acute. Many Northern Bible-readers and not a few in the South ''felt'' that slavery was evil. They somehow ''knew'' the Bible supported them in that feeling. Yet when it came to using the Bible as it had been used with such success to evangelize and civilize the United States, the sacred page was snatched out of their hands. Trust in the Bible and reliance upon a Reformed, literal hermeneutic had created a crisis that only bullets, not arguments, could resolve.<ref name=autogenerated2>{{cite book |last=Noll |first=Mark A. |title=America's God: From Jonathan Edwards to Abraham Lincoln |publisher=Oxford University Press |year=2002 |pages=399–400}}</ref></blockquote>

The result:

<blockquote>The question of the Bible and slavery in the era of the Civil War was never a simple question. The issue involved the American expression of a Reformed literal hermeneutic, the failure of hermeneutical alternatives to gain cultural authority, and the exercise of deeply entrenched intuitive racism, as well as the presence of Scripture as an authoritative religious book and slavery as an inherited social-economic relationship. The North{{snd}}forced to fight on unfriendly terrain that it had helped to create{{snd}}lost the exegetical war. The South certainly lost the shooting war. But constructive orthodox theology was the major loser when American believers allowed bullets instead of hermeneutical self-consciousness to determine what the Bible said about slavery. For the history of theology in America, the great tragedy of the Civil War is that the most persuasive theologians were the Rev. Drs. [[William Tecumseh Sherman]] and [[Ulysses S. Grant]].<ref>Noll, Mark A. "The Bible and Slavery", in Miller, Randall M.; Stout, Harry S.; and Wilson, Charles Reagan, eds. ''Religion and the American Civil War''. New York and Oxford: Oxford University Press, 1998, p. 62.</ref></blockquote>

There were many causes of the Civil War, but the religious conflict, almost unimaginable in modern America, cut very deep at the time. Noll and others highlight the significance of the religion issue for the famous phrase in [[Abraham Lincoln's second inaugural address|Lincoln's second inaugural]]: "Both read the same Bible and pray to the same God, and each invokes His aid against the other."

===The territorial crisis and the United States Constitution===
[[File:US Secession map 1863 (BlankMap derived).png|thumb|upright=1.5|United States map, 1863:
{{legend|#002255| Union states}}
{{legend|#6895c9| Union territories not permitting slavery}}
{{legend|#ffff00| Border Union states, permitting slavery}}
{{legend|#dd5500| Confederate states}}
{{legend|#EDB360| Union territories permitting slavery (claimed by Confederacy)}}]]

Between 1803 and 1854, the United States achieved a vast expansion of territory through purchase ([[Louisiana Purchase]]), negotiation ([[Adams–Onís Treaty]], [[Oregon Treaty]]), and conquest (the [[Mexican Cession]]).<ref>Bestor, 1964, pp. 10–11</ref> Of the states carved out of these territories by 1845, all had entered the union as slave states: Louisiana, Missouri, Arkansas, Florida, and Texas, as well as the southern portions of Alabama and Mississippi.<ref name="McPherson, 2007, p. 14">McPherson, 2007, p. 14.</ref> With the conquest of northern Mexico, including California, in 1848, slaveholding interests looked forward to the institution flourishing in these lands as well. Southerners also anticipated annexing as slave states Cuba (see [[Ostend Manifesto]]), Mexico, and Central America (see [[Golden Circle (proposed country)]]).<ref name="McPherson, 2007, p. 14" /><ref>Stampp, pp. 190–193.</ref> Northern free soil interests vigorously sought to curtail any further expansion of slave soil. It was these territorial disputes that the proslavery and antislavery forces collided over.<ref>Bestor, 1964, p. 11.</ref><ref>Krannawitter, 2008, pp. 49–50.</ref>

The existence of slavery in the southern states was far less politically polarizing than the explosive question of the territorial expansion of the institution in the west.<ref>McPherson, 2007, pp. 13–14.</ref> Moreover, Americans were informed by two well-established readings of the Constitution regarding human bondage: that the slave states had complete autonomy over the institution within their boundaries, and that the domestic slave trade{{snd}}trade among the states{{snd}}was immune to federal interference.<ref>Bestor, 1964, pp. 17–18.</ref><ref>Guelzo, pp. 21–22.</ref> The only feasible strategy available to attack slavery was to restrict its expansion into the new territories.<ref>Bestor, 1964, p. 15.</ref> Slaveholding interests fully grasped the danger that this strategy posed to them.<ref>Miller, 2008, p. 153.</ref><ref>McPherson, 2007, p. 3.</ref> Both the South and the North believed: "The power to decide the question of slavery for the territories was the power to determine the future of slavery itself."<ref>Bestor, 1964, p. 19.</ref><ref>McPherson, 2007, p. 16.</ref>

By 1860, four doctrines had emerged to answer the question of federal control in the territories, and they all claimed to be sanctioned by the Constitution, implicitly or explicitly.<ref>Bestor, 1964, pp. 19–20.</ref> Two of the "conservative" doctrines emphasized the written text and historical precedents of the founding document, while the other two doctrines developed arguments that transcended the Constitution.<ref name="Bestor, 1964, p. 21">Bestor, 1964, p. 21</ref>

[[File:John Jordan Crittenden - Brady 1855.jpg|upright=.8|thumb|[[John J. Crittenden]], author of the [[Crittenden Compromise]] bill, December 18, 1860]]

One of the "conservative" theories, represented by the [[Constitutional Union Party (United States)|Constitutional Union Party]], argued that the historical designation of free and slave apportionments in territories should become a Constitutional mandate. The [[Crittenden Compromise]] of 1860 was an expression of this view.<ref name="Bestor, 1964, p. 20">Bestor, 1964, p. 20</ref>

The second doctrine of Congressional preeminence, championed by [[Abraham Lincoln]] and the [[Republican Party (United States)|Republican Party]], insisted that the Constitution did not bind legislators to a policy of balance{{snd}}that slavery could be excluded altogether in a territory at the discretion of Congress<ref name="Bestor, 1964, p. 20"/><ref>Russell, 1966, pp. 468–469</ref>{{snd}}with one caveat: the [[Due Process Clause|due process clause of the Fifth Amendment]] must apply. In other words, Congress could restrict human bondage, but never establish it.<ref name="Bestor, 1964, p. 21" /> The [[Wilmot Proviso]] announced this position in 1846.<ref name="Bestor, 1964, p. 20"/>

Of the two doctrines that rejected federal authority, one was articulated by northern Democrat of Illinois Senator [[Stephen A. Douglas]], and the other by southern Democratic Senator [[Jefferson Davis]] of Mississippi and Senator [[John C. Breckinridge]] of Kentucky.<ref name="Bestor, 1964, p. 21" />

[[File:Stephen Arnold Douglas.jpg|thumb|left|upright=.8|Stephen A. Douglas – author and proponent of the [[Kansas–Nebraska Act]] of 1854]]

Douglas devised the doctrine of territorial or "popular" sovereignty, which declared that the settlers in a territory had the same rights as states in the Union to establish or disestablish slavery{{snd}}a purely local matter.<ref name="Bestor, 1964, p. 21" /> Congress, having created the territory, was barred, according to Douglas, from exercising any authority in domestic matters. To do so would violate historic traditions of self-government, implicit in the US Constitution.<ref name="Bestor, 1964, p. 23">Bestor, 1964, p. 23</ref> The [[Kansas–Nebraska Act]] of 1854 legislated this doctrine.

The fourth in this quartet is the theory of state sovereignty ("[[states' rights]]"),<ref name="Bestor, 1964, p. 23" /> also known as the "Calhoun doctrine" after the South Carolinian political theorist and statesman [[John C. Calhoun]].<ref>Russell, 1966, p. 470</ref> Rejecting the arguments for federal authority or self-government, state sovereignty would empower states to promote the expansion of slavery as part of the federal union under the US Constitution{{snd}}and not merely as an argument for secession.<ref>Bestor, 1964, p. 24</ref> The basic premise was that all authority regarding matters of slavery in the territories resided in each state. The role of the federal government was merely to enable the implementation of state laws when residents of the states entered the territories.<ref>Bestor, 1964, pp. 23–24</ref> Calhoun asserted that the federal government in the territories was only the agent of the several sovereign states, and hence incapable of forbidding the bringing into any territory of anything that was legal property in any state. State sovereignty, in other words, gave the laws of the slaveholding states ''extra-jurisdictional'' effect.<ref>Holt, 2004, pp. 34–35.</ref>

"States' rights" was an ideology formulated and applied as a means of advancing slave state interests through federal authority.<ref>McPherson, 2007, p. 7.</ref> As historian Thomas L Krannawitter points out, "[T]he Southern demand for federal slave protection represented a demand for an unprecedented expansion of federal power."<ref>Krannawitter, 2008, p. 232.</ref>

By 1860, these four doctrines comprised the major ideologies presented to the American public on the matters of slavery, the territories and the US Constitution.<ref>Bestor, 1964, pp. 24–25.</ref>  As a practical matter, however, slavery was practically defunct in the territories by 1860. The 1860 census showed: Utah Territory (controlled by Mormons) had 29 slaves; Nebraska had 15; Kansas had 2 (it was abolished there in early 1861 with statehood). There were no slaves in the other territories of Colorado, Washington, Nevada, New Mexico and Dakota, and none in the new states of California & Oregon. See [[1860 United States census#Population of U.S. states and territories]].<ref>Jos. C. G. Kennedy, ''Preliminary Report of the Eighth Census, 1860'' (1862) pp. 259, 291–294.</ref>  See also [[History of slavery in Nebraska]], [[History of slavery in Kansas]], and [[History of slavery in Utah]].

==Abolitionism==
[[File:American Anti-Slavery Society.gif|thumb|Platform of the [[American Anti-Slavery Society]], founded in 1833 by [[William Lloyd Garrison]] and [[Arthur Tappan]]]]
{{Main|Abolitionism in the United States}}

The abolitionists—those advocating the end of slavery—were active in the decades leading up to the war. They traced their philosophical roots back to certain [[Puritans]], who believed slavery was morally wrong. An early Puritan writing on slavery was ''The Selling of Joseph,'' by [[Samuel Sewall]] in 1700. In it, Sewall condemned slavery and the slave trade, and refuted justifications for slavery.<ref>Sewall, Samuel. ''The Selling of Joseph,'' pp. 1–3, Bartholomew Green & John Allen, Boston, Massachusetts, 1700.</ref><ref name="McCullough, David pp. 132-3">McCullough, David. ''John Adams,'' pp. 132–133, Simon & Schuster, New York, 2001. {{ISBN|0-684-81363-7}}.</ref>

The [[American Revolution]] and the cause of liberty added impetus to the abolitionist cause. Even in Southern states, laws were changed to limit slavery and facilitate [[manumission]]. The amount of [[Indentured servitude in British America|indentured servitude]] dropped dramatically throughout the country. An [[Act Prohibiting Importation of Slaves]] sailed through Congress with little opposition. President [[Thomas Jefferson]] supported it, and it went into effect on January 1, 1808, the first day the Constitution permitted Congress to prohibit importation of slaves. [[Benjamin Franklin]] and [[James Madison]] helped found manumission societies. Influenced by the Revolution, many slave owners freed their slaves, but some, such as [[George Washington]], did so only in their wills. The number of free black people as a proportion of the black population in the [[Upland South|upper South]] increased from less than 1 percent to nearly 10 percent between 1790-1810.<ref>Ketcham, Ralph, ''James Madison: A Biography'', pp. 625–626, American Political Biography Press, Newtown, Connecticut, 1971. {{ISBN|0-945707-33-9}}.</ref><ref>{{cite web |url=https://www.archives.gov/legislative/features/franklin/ |title=Benjamin Franklin Petitions Congress |date=August 15, 2016 |publisher=National Archives and Records Administration}}</ref><ref>{{Cite web|title=Petition from the Pennsylvania Society for the Abolition of Slavery|url=http://www.ushistory.org:80/documents/antislavery.htm|archive-url=https://web.archive.org/web/20060521035446/http://www.ushistory.org/documents/antislavery.htm|url-status=dead|archive-date=May 21, 2006|date=February 3, 1790|access-date=May 21, 2006|last=Franklin|first=Benjamin}}</ref><ref>{{cite book|author=John Paul Kaminski|title=A Necessary Evil?: Slavery and the Debate Over the Constitution|url=https://books.google.com/books?id=t3SDQgfxsCIC&pg=PA256|year=1995|publisher=Rowman & Littlefield|page=256|isbn=978-0-945612-33-9}}</ref><ref>{{cite book|last=Painter|first=Nell Irvin|title=Creating Black Americans: African-American History and Its Meanings, 1619 to the Present|year=2007|page=72}}</ref><ref name=Wilson15>Wilson, ''Black Codes'' (1965), p. 15. "By 1775, inspired by those 'self-evident' truths which were to be expressed by the [[United States Declaration of Independence|Declaration of Independence]], a considerable number of colonists felt that the time had come to end slavery and give the free Negroes some fruits of liberty. This sentiment, added to economic considerations, led to the immediate or gradual abolition of slavery in six northern states, while there was a swelling flood of private manumissions in the South. Little actual gain was made by the free Negro even in this period, and by the turn of the century, the downward trend had begun again. Thereafter the only important change in that trend before the Civil War was that after 1831 the decline in the status of the free Negro became more precipitate."</ref>

The establishment of the [[Northwest Territory]] as "free soil"—no slavery—by [[Manasseh Cutler]] and [[Rufus Putnam]] would prove crucial. This territory doubled the size of the US. If those states had been slave states and voted for Lincoln's chief opponent in 1860, Lincoln would not have become president.<ref>Hubbard, Robert Ernest. ''General Rufus Putnam: George Washington's Chief Military Engineer and the "Father of Ohio''", pp. 1–4, 105–106, McFarland & Company, Inc., Jefferson, North Carolina, 2020. {{ISBN|978-1-4766-7862-7}}.</ref><ref>McCullough, David. ''The Pioneers: The Heroic Story of the Settlers Who Brought the American Ideal West,'' pp. 4, 9, 11, 13, 29–30, Simon & Schuster, New York, 2019. {{ISBN|978-1-5011-6868-0}}.</ref><ref name="McCullough, David pp. 132-3"/>

[[File:Frederick Douglass (circa 1879).jpg|right|thumb|upright=.8|[[Frederick Douglass]], a former slave, was a leading abolitionist]]
In the decades leading up to the war, abolitionists, such as [[Theodore Parker]], [[Ralph Waldo Emerson]], [[Henry David Thoreau]], and [[Frederick Douglass]], repeatedly used the Puritan heritage of the country to bolster their cause. The most radical anti-slavery newspaper, ''[[The Liberator (newspaper)|The Liberator]],'' invoked Puritan values over a thousand times. Parker, in urging New England congressmen to support slavery's abolition, wrote, "The son of the Puritan ... is sent to Congress to stand up for Truth and Right."<ref>Gradert, Kenyon. ''Puritan Spirits in the Abolitionist Imagination,'' pp. 1–3, 14–5, 24, 29–30, University of Chicago Press: Chicago and London, 2020. {{ISBN|978-0-226-69402-3}}.</ref><ref>[[Henry Steele Commager|Commager, Henry Steele]]. ''Theodore Parker,'' Boston: Little, Brown, and Company, 1936, pp. 206–210.</ref> Literature spread the message; key works included ''[[Twelve Years a Slave]]'', the [[Narrative of the Life of Frederick Douglass, an American Slave|''Narrative of the Life of Frederick Douglass'']], ''[[American Slavery as It Is]]'', and the most important: ''[[Uncle Tom's Cabin]]'', the best-selling book of the 19th century, aside from the Bible.<ref>{{Cite web|last=Anderson|first=Mic|title=8 Influential Abolitionist Texts|url=https://www.britannica.com/list/8-influential-abolitionist-texts|access-date=January 7, 2021|website=Encyclopedia Britannica|language=en}}</ref>{{Sfn|McPherson|1988|p=38}}<ref name="GailSmith">"The Sentimental Novel: The Example of Harriet Beecher Stowe" by Gail K. Smith, ''The Cambridge Companion to Nineteenth-Century American Women's Writing'' by Dale M. Bauer and Philip Gould, Cambridge University Press, 2001, p. 221. [https://books.google.com/books?id=Cl90oCk0cncC&q=Gail+K.+Smith+selling&pg=PA221 Book preview] {{Webarchive|url=https://web.archive.org/web/20221116151722/https://books.google.com/books?id=Cl90oCk0cncC&pg=PA221#v=onepage&q=Gail%20K.%20Smith%20selling |date=November 16, 2022 }}.</ref>

An unusual abolitionist was [[Hinton Rowan Helper]], whose 1857 book, ''[[The Impending Crisis of the South]]: How to Meet It'', "[e]ven more perhaps than ''Uncle Tom's Cabin'' ... fed the fires of sectional controversy leading up to the...War."<ref>[[George M. Fredrickson|Fredrickson, George M.]], ed., ''The Impending Crisis of the South'', Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 1968. The quotation is from Frederickson's "Introduction", p. ix.</ref> A Southerner and virulent racist, Helper was nevertheless an abolitionist because he believed, and showed with statistics, that slavery "impeded the progress and prosperity of the South, ... dwindled our commerce, and other similar pursuits, into the most contemptible insignificance; sunk a large majority of our people in galling poverty and ignorance, ... [and] entailed upon us a humiliating dependence on the Free States...."<ref>''The Impending Crisis of the South'', Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 1968, p. 25.</ref>

By 1840 more than 15,000 people were members of abolitionist societies. Abolitionism became a popular expression of [[moralism]] and a factor that led to the war. In churches, conventions, newspapers, abolitionists advocated an immediate end to slavery.<ref>{{cite book|title=The Young People's Encyclopedia of the United States|last=Shapiro|first=William E.|date=1993|publisher=Millbrook Press|isbn=1-56294-514-9|location=Brookfield, Conn.|oclc=30932823}}</ref><ref name="Robins2004">{{cite book |last=Robins |first=R.G. |title=A.J. Tomlinson: Plainfolk Modernist |date=2004 |publisher=Oxford University Press |isbn=978-0-19-988317-2 |language=en}}</ref> The issue split religious groups, with even the main denominations forming rival Southern and Northern churches as the war approached. In 1845 the [[Baptists]] split over slavery into the [[Triennial Convention|Northern Baptists]] and [[Southern Baptist Convention|Southern Baptists]].{{Sfn|McPherson|1988|p=40}}<ref>{{cite web|date=December 2018|title=Report on Slavery and Racism in the History of the Southern Baptist Theological Seminary|url=http://www.sbts.edu/wp-content/uploads/2018/12/Racism-and-the-Legacy-of-Slavery-Report-v4.pdf#page=6 |archive-url=https://ghostarchive.org/archive/20221009/http://www.sbts.edu/wp-content/uploads/2018/12/Racism-and-the-Legacy-of-Slavery-Report-v4.pdf#page=6 |archive-date=2022-10-09 |url-status=live|access-date=July 29, 2019|publisher=Southern Baptist Theological Seminary}}</ref>

Abolitionist sentiment was not exclusively religious or moral. The [[Whig Party (United States)|Whig Party]] became increasingly opposed to slavery because it saw it as inherently against the ideals of capitalism and the free market. Whig leader [[William H. Seward]] (later Lincoln's secretary of state) proclaimed there was an "irrepressible conflict" between slavery and free labor, and that slavery had left the South backward and undeveloped.{{Sfn|McPherson|1988|p=39}} As the Whig Party dissolved in the 1850s, the mantle of abolition fell to its newly formed successor, the Republican Party.<ref>* {{cite book |last=Donald |first=David Herbert |author-link=David Herbert Donald |year=1995 |title=Lincoln |location=New York |publisher=Simon & Schuster |isbn=978-0-684-80846-8 |pages=188–189}}</ref>

==Slavery question in territories acquired from Mexico==

Soon after the [[Mexican–American War|Mexican War]] started and long before negotiation of the new [[Mexico–United States border|US-Mexico border]], the question of slavery in the territories to be acquired polarized the Northern and [[Southern United States]] in the most bitter sectional conflict up to this time, which lasted for a deadlock of four years during which the [[Second Party System]] broke up, [[Mormon pioneers]] settled [[Utah]], the [[California Gold Rush]] settled [[California]], and New Mexico under a federal military government turned back [[Texas]]'s attempt to assert control over territory Texas claimed as far west as the [[Rio Grande]]. Eventually the [[Compromise of 1850]] preserved the Union, but only for another decade.<ref>David Herbert Donald et al. ''The Civil War and Reconstruction'' (2000) pp. 74–98.</ref>

Proposals included:
* The [[Wilmot Proviso]] banning slavery in any new territory to be acquired from Mexico, not including Texas, which had been annexed the previous year. Passed by the [[United States House of Representatives]] in August 1846 and February 1847 but not the [[United States Senate|Senate]]. Later an effort to attach the proviso to the [[Treaty of Guadalupe Hidalgo]] also failed.<ref>Eric Foner, "The Wilmot Proviso Revisited." ''Journal of American History'' 56.2 (1969): 262–279. </ref>
* Failed amendments to the Wilmot Proviso by [[William W. Wick]] and then [[Stephen A. Douglas|Stephen Douglas]] extending the [[Missouri Compromise]] line ([[Parallel 36°30′ north|36°30′ parallel north]]) west to the Pacific Ocean , allowing slavery in most of present-day [[New Mexico]] and [[Arizona]], southern [[Nevada]], and [[Southern California]], as well as any other territories that might be acquired from Mexico. The line was again proposed by the [[Nashville Convention]] of June 1850.
* [[Popular sovereignty]], developed by [[Lewis Cass]] and Douglas as the eventual [[Democratic Party (United States)|Democratic Party]] position, letting each territory decide whether to allow slavery.
* [[William Lowndes Yancey|William L. Yancey]]'s "Alabama Platform", endorsed by the [[Alabama]] and [[Georgia (U.S. state)|Georgia]] legislatures and by Democratic state conventions in [[Florida]] and [[Virginia]], called for no restrictions on slavery in the territories either by the federal government or by territorial governments before statehood, opposition to any candidates supporting either the Wilmot Proviso or popular sovereignty, and federal legislation overruling Mexican anti-slavery laws.<ref>Eric H. Walther, ''William Lowndes Yancey and the Coming of the Civil War'' (Univ of North Carolina Press, 2006.)  </ref>
* General [[Zachary Taylor]], who became the [[Whig Party (United States)|Whig]] candidate in 1848 and then President from March 1849 to July 1850, proposed after becoming President that the entire area become two free states, called California and New Mexico, but much larger than the eventual ones. None of the area would be left as an unorganized or [[Territories of the United States|organized territory]], avoiding the question of slavery in the territories.
* The Mormons' proposal for a [[State of Deseret]], incorporating most of the area of the Mexican Cession but excluding the large non-Mormon populations in [[Northern California]] and central New Mexico, was considered unlikely to succeed in [[United States Congress|Congress]], but nevertheless in 1849 President Zachary Taylor sent his agent [[John Thomas Wilson|John Wilson]] westward with a proposal to combine California and Deseret as a single state, decreasing the number of new [[Slave states and free states|free states]] and the erosion of Southern parity in the [[United States Senate|Senate]].
[[File:USA Territorial Growth 1850.jpg|thumb|upright=2|Territorial growth from 1840 to 1850]]
* The [[Compromise of 1850]], proposed by [[Henry Clay]] in January 1850, guided to passage by Douglas over Northern Whig and Southern Democrat opposition, and enacted September 1850, admitted California as a free state, including [[Southern California]], and organized [[Utah Territory]] and [[New Mexico Territory]] with slavery to be decided by popular sovereignty. Texas dropped its claim to the disputed northwestern areas in return for debt relief, and the areas were divided between the two new territories and [[Territories of the United States#Formerly unorganized territories|unorganized territory]]. [[El Paso, Texas|El Paso]], where Texas had successfully established county government, was left in Texas. No territory dominated by Southerners (like the later short-lived [[Confederate Arizona|Confederate Territory of Arizona]]) was created. Also, the slave trade was abolished in [[Washington, D.C.]] (but not slavery itself), and the [[Fugitive slave laws in the United States|Fugitive Slave Act]] was strengthened.<ref>Bruce Tap, "Compromise of 1850." in ''The Oxford Encyclopedia of the Civil War'' (2011): pp. 80+. </ref><ref>John C. Waugh, ''On the brink of Civil War: The compromise of 1850 and how it changed the course of American history'' (Rowman & Littlefield, 2003. </ref>

==States' rights==
{{Main|States' rights}}

A long-running dispute over the war's origin is to what extent states' rights triggered it. The consensus among historians is that the war was {{Em|not}} fought about states' rights.<ref name=":6">{{Cite web|last=Flanagin|first=Jake|title=For the last time, the American Civil War was not about states' rights|url=https://qz.com/378533/for-the-last-time-the-american-civil-war-was-not-about-states-rights/|access-date=June 12, 2021|website=Quartz|date=April 8, 2015 |language=en}}</ref><ref name=":7" /><ref name=":8" /><ref name="McPherson-2011">{{cite book|last=McPherson|first=James M.|author-link=James M. McPherson|title=This Mighty Scourge: Perspectives on the Civil War|url=https://archive.org/details/isbn_9780195313666|url-access=registration|year=2007|publisher=Oxford University Press|location=Oxford; New York|isbn=978-0-19-539242-5|pages=3–9}}</ref> But the issue is frequently referenced in popular accounts and has much traction among Southerners. Southerners advocating secession argued that just as each state had decided to join the Union, a state had the right to secede—leave—at any time. Northerners (including pro-slavery President Buchanan) rejected that notion as opposed to the will of the [[Founding Fathers of the United States|Founding Fathers]], who said they were setting up a [[Perpetual Union]].<ref name="Forrest McDonald 2002" />

Historian [[James M. McPherson]] points out that even if Confederates genuinely fought over states' rights, it boiled down to states' right to slavery.<ref name="McPherson-2011"/> McPherson writes concerning states' rights and other non-slavery explanations:
{{blockquote|While [[Lost Cause of the Confederacy|one or more of these interpretations]] remain popular among the [[Sons of Confederate Veterans]] and other Southern heritage groups, few professional historians now subscribe to them. Of all these interpretations, the states'-rights argument is perhaps the weakest. It fails to ask the question, states' rights for what purpose? States' rights, or sovereignty, was always more a means than an end, an instrument to achieve a certain goal more than a principle.<ref name="McPherson-2011"/>}}

States' rights was an ideology applied as a means of advancing slave state interests through federal authority.<ref name="McPherson-2011"/> Thomas Krannawitter notes the "Southern demand for federal slave protection represented a demand for an unprecedented expansion of Federal power."<ref>{{cite book|last=Krannawitter|first=Thomas L.|title=Vindicating Lincoln: defending the politics of our greatest president|year=2008|publisher=Rowman & Littlefield Publishers|location=Lanham, Maryland|isbn=978-0-7425-5972-1|url=https://archive.org/details/vindicatinglinco00kran|page=232}}</ref><ref>Gara, 1964, p.&nbsp;190.</ref> Before the war, slavery advocates supported use of federal powers to enforce and extend slavery, as with the Fugitive Slave Act of 1850 and the ''[[Dred Scott v. Sandford]]'' decision.<ref name=":5">{{Cite web|date=July 3, 2017|title=States' Rights, the Slave Power Conspiracy, and the Causes of the Civil War|url=https://concerninghistory.org/general/states-rights-the-slave-power-conspiracy-and-the-cause-of-the-civil-war/|access-date=June 12, 2021|website=Concerning History|language=en}}</ref><ref name="woods2017">{{Cite journal |last=Woods |first=Michael E. |date=2017 |title='Tell Us Something about State Rights': Northern Republicans, States' Rights, and the Coming of the Civil War |url=https://www.jstor.org/stable/26070516 |journal=Journal of the Civil War Era |volume=7 |issue=2 |pages=242–268 |jstor=26070516 |issn=2154-4727}}</ref> The faction that pushed for secession often infringed on states' rights. Because of the overrepresentation of pro-slavery factions in the federal government, many Northerners, even non-abolitionists, feared the [[Slave Power]] conspiracy.<ref name=":5" /><ref name="woods2017" /> Some Northern states resisted the enforcement of the Fugitive Slave Act. [[Eric Foner]] states that the act "could hardly have been designed to arouse greater opposition in the North. It overrode state and local laws and legal procedures and 'commanded' individual citizens to assist, when called upon, in capturing runaways." He continues, "It certainly did not reveal, on the part of slaveholders, sensitivity to states' rights."<ref name=":7">{{Cite web|last=Foner|first=Eric|title=When the South Wasn't a Fan of States' Rights|url=https://www.politico.com/magazine/story/2015/01/underground-railroad-states-rights-114536|archive-url=https://web.archive.org/web/20150912090917/http://www.politico.com/magazine/story/2015/01/underground-railroad-states-rights-114536|url-status=dead|archive-date=September 12, 2015|access-date=June 12, 2021|website=Politico Magazine|date=January 23, 2015 |language=en}}</ref> According to [[Paul Finkelman]], "the southern states mostly complained that the northern states were asserting ''their'' states' rights and that the national government was not powerful enough to counter these northern claims."<ref name=":8">{{Cite journal|last=Finkelman|first=Paul|date=2012|title=States' Rights, Southern Hypocrisy, and the Crisis of the Union|url=https://ideaexchange.uakron.edu/akronlawreview/vol45/iss2/5|journal=Akron Law Review|volume=45|issue=2|issn=0002-371X}}</ref> The [[Confederate Constitution]] also "federally" required slavery to be legal in all Confederate states and claimed territories.<ref name=":6" /><ref>{{Cite web|last=McCurry|first=Stephanie|date=June 21, 2020|title=The Confederacy Was an Antidemocratic, Centralized State|url=https://www.theatlantic.com/ideas/archive/2020/06/confederacy-wasnt-what-you-think/613309/|access-date=June 12, 2021|website=The Atlantic|language=en}}</ref>

==Compromise of 1850==
{{Main|Compromise of 1850}}
The victory of the United States over Mexico resulted in the addition of large new territories conquered from Mexico. Controversy over whether the territories would be slave or free raised the risk of a war between slave and free states, and Northern support for the [[Wilmot Proviso]], which would have banned slavery in the conquered territories, increased sectional tensions. The controversy was temporarily resolved by the [[Compromise of 1850]], which allowed the territories of [[Utah Territory|Utah]] and [[New Mexico Territory|New Mexico]] to decide for or against slavery, but also allowed the admission of [[California Territory|California]] as a free state, reduced the size of the slave state of [[Texas]] by adjusting the boundary, and ended the slave trade but not slavery itself in the [[District of Columbia]]. In return, the South got a stronger [[Fugitive slave laws in the United States|fugitive slave law]] than the version mentioned in the [[US Constitution]]. The Fugitive Slave Law would reignite controversy over slavery.

===Fugitive Slave Law issues===
The [[Fugitive Slave Act of 1850]] required Northerners to assist Southerners in reclaiming fugitive slaves, which many Northerners strongly opposed. [[Anthony Burns]] was among the fugitive slaves captured and returned in chains to slavery as a result of the law. [[Harriet Beecher Stowe]]'s best-selling novel ''[[Uncle Tom's Cabin]]'' greatly increased opposition to the Fugitive Slave Act.

==Kansas–Nebraska Act (1854)==
{{Main|Kansas–Nebraska Act}}
Most people thought the Compromise had ended the territorial issue, but [[Stephen A. Douglas]] reopened it in 1854. Douglas proposed the Kansas–Nebraska Bill with the intention of opening up vast new high-quality farm lands to settlement. As a [[Chicago]]an, he was especially interested in the railroad connections from Chicago into Kansas and Nebraska, but that was not a controversial point. More importantly, Douglas firmly believed in democracy at the grass roots{{snd}}that actual settlers have the right to decide on slavery, not politicians from other states. His bill provided that [[popular sovereignty]], through the territorial legislatures, should decide "all questions pertaining to slavery", thus effectively repealing the [[Missouri Compromise]]. The ensuing public reaction against it created a firestorm of protest in the Northern states. It was seen as an effort to repeal the Missouri Compromise. However, the popular reaction in the first month after the bill's introduction failed to foreshadow the gravity of the situation. As Northern papers initially ignored the story, Republican leaders lamented the lack of a popular response.

Eventually, the popular reaction did come, but the leaders had to spark it. [[Salmon P. Chase]]'s "Appeal of the Independent Democrats" did much to arouse popular opinion. In New York, [[William H. Seward]] finally took it upon himself to organize a rally against the Nebraska bill, since none had arisen spontaneously. Press such as the ''National Era'', the ''[[New-York Tribune]]'', and local free-soil journals, condemned the bill. The [[Lincoln–Douglas debates|Lincoln–Douglas debates of 1858]] drew national attention to the issue of slavery expansion.

==Fragmentation of the American party system==

===Founding of the Republican Party (1854)===
{{Main|History of the Republican Party (United States)}}
[[File:CSumner.jpg|thumb|Charles Sumner, the Senate's leading opponent of slavery]]
The American party system had been dominated by Whigs and Democrats for decades leading up to the Civil War. But the Whig party's increasing internal divisions had made it a party of strange bedfellows by the 1850s. An ascendant anti-slavery wing clashed with a traditionalist and increasingly pro-slavery southern wing. These divisions came to a head in the 1852 election, where Whig candidate [[Winfield Scott]] was trounced by [[Franklin Pierce]]. Southern Whigs, who had supported the prior Whig president Zachary Taylor, had been burned by Taylor and were unwilling to support another Whig. Taylor, who despite being a slaveowner, had proved notably anti-slavery despite campaigning neutrally on the issue. With the loss of Southern Whig support, and the loss of votes in the North to the [[Free Soil Party]], Whigs seemed doomed. So they were, as they would never again contest a presidential election.{{Sfn|McPherson|1988|pp=117–119}}

The final nail in the Whig coffin was the Kansas-Nebraska act. It was also the spark that began the [[Republican Party (United States)|Republican Party]], which would take in both Whigs and Free Soilers and create an anti-slavery party that the Whigs had always resisted becoming.{{Sfn|McPherson|1988|pp=117–119}} The Act opened [[Kansas Territory]] and [[Nebraska Territory]] to slavery and future admission as [[slave state]]s, thus implicitly repealing the prohibition on slavery in territory north of [[36° 30′ latitude]] that had been part of the [[Missouri Compromise]].<ref name="senate.gov">{{Cite web|title=U.S. Senate: The Kansas-Nebraska Act|url=https://www.senate.gov/artandhistory/history/minute/Kansas_Nebraska_Act.htm|access-date=2021-09-23|website=www.senate.gov|archive-date=April 12, 2020|archive-url=https://web.archive.org/web/20200412071245/https://www.senate.gov/artandhistory/history/minute/Kansas_Nebraska_Act.htm|url-status=live}}</ref><ref>{{Cite web|title=The Wealthy Activist Who Helped Turn "Bleeding Kansas" Free|url=https://www.smithsonianmag.com/history/wealthy-activist-who-helped-turn-bleeding-kansas-free-180964494/|access-date=2021-09-23|website=Smithsonian Magazine|language=en|archive-date=March 31, 2019|archive-url=https://web.archive.org/web/20190331200944/https://www.smithsonianmag.com/history/wealthy-activist-who-helped-turn-bleeding-kansas-free-180964494/|url-status=live}}</ref> This change was viewed by anti-slavery Northerners as an aggressive, expansionist maneuver by the slave-owning South. Opponents of the Act were intensely motivated and began forming a new party. The Party began as a coalition of anti-slavery [[Conscience Whigs]] such as [[Zachariah Chandler]] and [[Free Soil Party|Free Soilers]] such as [[Salmon P. Chase]].<ref>Paul Finkelman, and Peter Wallenstein, eds. ''The encyclopedia of American political history'' (2001) p. 226.</ref><ref name="Eric Foner 1970">Eric Foner, ''Free soil, free labor, free men: the ideology of the Republican Party before the Civil War''(1970).</ref>

The first [[Anti-Nebraska movement|anti-Nebraska]] local meeting where "Republican" was suggested as a name for a new anti-slavery party was held in a [[Ripon, Wisconsin]] schoolhouse on March 20, 1854.<ref>A.F. Gilman, ''The origin of the Republican Party'' (1914). [http://www.wisconsinhistory.org/turningpoints/search.asp?id=137 online] {{Webarchive|url=https://web.archive.org/web/20210624003914/https://www.wisconsinhistory.org/turningpoints/search.asp?id=137 |date=June 24, 2021 }}</ref> The first statewide convention that formed a platform and nominated candidates under the Republican name was held near [[Jackson, Michigan]], on July 6, 1854. At that convention, the party opposed the expansion of slavery into new territories and selected a statewide slate of candidates.<ref>William Stocking, ed. ''Under the Oaks: Commemorating the Fiftieth Anniversary of the Founding of the Republican Party, at Jackson, Michigan, July 6, 1854'' (1904) [https://books.google.com/books?id=9VniAAAAMAAJ&dq=Jackson+Michigan++republican+party+1854&pg=PA9 online] {{Webarchive|url=https://web.archive.org/web/20210505140031/https://books.google.com/books?hl=en&lr=lang_en&id=9VniAAAAMAAJ&oi=fnd&pg=PA9&dq=Jackson+Michigan++republican+party+1854&ots=wP9Wk94j1M&sig=E529yUR9YESEQfYO4xMzi-obxSI |date=May 5, 2021 }}</ref> The Midwest took the lead in forming state Republican Party tickets; apart from [[St. Louis]] and a few areas adjacent to free states, there were no efforts to organize the Party in the southern states.<ref>Allan Nevins, ''. Ordeal of the Union: A house dividing, 1852–1857. Vol. 2'' (1947) pp. 316–323.</ref><ref>William E. Gienapp, ''The origins of the Republican Party, 1852–1856'' (1987) pp. 189–223.</ref> So was born the Republican Party{{snd}}campaigning on the popular, emotional issue of "free soil" in the frontier{{snd}}which would capture the [[White House]] just six years later.{{Sfn|McPherson|1988|pp=117–119}}

==="Bleeding Kansas" and the elections of 1856===
[[File:Augustus Washington - John Brown - Google Art Project.jpg|thumb|Radical abolitionist [[John Brown (abolitionist)|John Brown]]]]
{{Main|1856 United States presidential election|Bleeding Kansas}}

In Kansas around 1855, the slavery issue reached a condition of intolerable tension and violence. But this was in an area where an overwhelming proportion of settlers were merely land-hungry Westerners indifferent to the public issues. The majority of the inhabitants were not concerned with sectional tensions or the issue of slavery. Instead, the tension in Kansas began as a contention between rival claimants. During the first wave of settlement, no one held titles to the land, and settlers rushed to occupy newly open land fit for [[Tillage|cultivation]]. While the tension and violence did emerge as a pattern pitting Yankee and Missourian settlers against each other, there is little evidence of any ideological divides on the questions of slavery. Instead, the Missouri claimants, thinking of Kansas as their own domain, regarded the Yankee [[squatting|squatters]] as invaders, while the Yankees accused the Missourians of grabbing the best land without honestly settling on it.

However, the 1855–56 violence in "[[Bleeding Kansas]]" did reach an ideological climax after [[John Brown (abolitionist)|John Brown]]{{snd}}regarded by followers as the instrument of God's will to destroy slavery{{snd}}entered the melee. His assassination of five pro-slavery settlers (the so-called "[[Pottawatomie massacre]]", during the night of May 24, 1856) resulted in some irregular, [[guerrilla warfare|guerrilla-style]] strife. Aside from John Brown's fervor, the strife in Kansas often involved only armed bands more interested in land claims or loot.

{{quote box
|align = left
|width = 35%
|quote = His zeal in the cause of freedom was infinitely superior to mine ... Mine was as the taper light; his was as the burning sun. I could live for the slave; John Brown could die for him.
|source = {{snd}}[[Frederick Douglass]] speaking of John Brown
}}

Of greater importance than the civil strife in Kansas, however, was the reaction against it nationwide and in Congress. In both North and South, the belief was widespread that the aggressive designs of the other section were epitomized by (and responsible for) what was happening in Kansas. Consequently, "Bleeding Kansas" emerged as a symbol of sectional controversy.

Indignant over the developments in Kansas, the Republicans{{snd}}the first entirely [[sectionalism|sectional]] major party in U.S. history{{snd}}entered their first presidential campaign with confidence. Their nominee, [[John C. Frémont]], was a generally safe candidate for the new party.<ref>[[Carl Sandburg]] (1954), ''Abraham Lincoln: The Prairie Years'', reprint, New York: Dell, Volume 1 of 3, Chapter 10, "The Deepening Slavery Issue", p. [221].</ref> Although his nomination upset some of their Nativist Know-Nothing supporters (his mother was a Catholic), the nomination of the famed explorer of the Far West and ex-senator from California with a short political record was an attempt to woo ex-Democrats. The other two Republican contenders, [[William H. Seward]] and [[Salmon P. Chase]], were seen as too radical.

Nevertheless, the [[1856 United States presidential election|campaign of 1856]] was waged almost exclusively on the slavery issue{{snd}}pitted as a struggle between democracy and aristocracy{{snd}}focusing on the question of Kansas. The Republicans condemned the Kansas–Nebraska Act and the expansion of slavery, but they advanced a program of [[public works|internal improvements]] combining the idealism of anti-slavery with the economic aspirations of the North. The new party rapidly developed a powerful partisan culture, and energetic activists drove voters to the polls in unprecedented numbers. People reacted with fervor. Young Republicans organized the "Wide Awake" clubs and chanted "Free Soil, Free Labor, Free Men, Frémont!" With Southern [[Fire-Eaters]] and even some moderates uttering threats of secession if Frémont won, the Democratic candidate, [[James Buchanan|Buchanan]], benefited from apprehensions about the future of the Union.

[[Millard Fillmore]], the candidate of the American Party (Know-Nothings) and the Silver Gray Whigs, said in a speech at [[Albany, New York]], that the election of a Republican candidate would [[Secession in the United States|dissolve the Union]]. Abraham Lincoln replied on July 23 in a speech at [[Galena, Illinois]]; [[Carl Sandburg]] wrote that this speech probably resembled [[Lincoln's Lost Speech]]: "This Government would be very weak, indeed, if a majority, with a disciplined army and navy, and a well-filled treasury, could not preserve itself, when attacked by an unarmed, undisciplined, unorganized minority. All this talk about the dissolution of the Union is humbug{{snd}}nothing but folly. ''We won't'' dissolve the Union, and ''you shan't''."<ref>The speech was reported by newspapers in Galena and Springfield, IL. Carl Sandburg (1954), ''Abraham Lincoln: The Prairie Years'', reprint, New York: Dell, Volume 1 of 3, Chapter 10, "The Deepening Slavery Issue", p. 223. Italics as in Sandburg.</ref>

===''Dred Scott'' decision (1857) and the Lecompton Constitution===
{{See also|Dred Scott v. Sandford}}
[[File:Oil on Canvas Portrait of Dred Scott (cropped).jpg|thumb|Slave [[Dred Scott]]]]
The [[Lecompton Constitution]] and ''[[Dred Scott v. Sandford]]'' (the respondent's name, Sanford,<ref>{{cite book|last=Allen|first=Austin|title=Origins of the'' Dred Scott ''Case: Jacksonian Jurisprudence and the Supreme Court 1837–1857|location=[[Athens, Georgia]]|publisher=[[University of Georgia Press]]|year=2006|page=14}}</ref> was misspelled in the reports)<ref>John Vishneski (1988), "What the Court Decided in Scott v. Sandford", ''The American Journal of Legal History'', 32 (4): 373–390.</ref> were both part of the [[Bleeding Kansas]] controversy over slavery that arose as a result of the [[Kansas–Nebraska Act]], which was [[Stephen A. Douglas|Stephen Douglas]]' attempt to replace the [[Missouri Compromise]]'s ban on slavery in the Kansas and Nebraska territories with popular sovereignty, which would have allowed the people of a territory to vote for or against slavery. The Lecompton Constitution, which would have allowed slavery in Kansas, was the result of massive vote fraud by the pro-slavery [[border ruffian]]s. Douglas defeated the Lecompton Constitution because it was supported by the minority of pro-slavery people in Kansas, and Douglas believed in majority rule. Douglas hoped that both the South and the North would support popular sovereignty, but neither did, as neither trusted Douglas.{{citation needed|date=December 2015}}

The Supreme Court decision of 1857 in ''[[Dred Scott v. Sandford]]'' escalated the controversy. [[Chief Justice of the United States|Chief Justice]] [[Roger B. Taney]]'s decision said that blacks were "so far inferior that they had no rights which the white man was bound to respect,"<ref>David Potter, ''The Impending Crisis'', p. 275.</ref> and that slavery could spread into the territories even if the majority of people in the territories were anti-slavery. Lincoln warned that "the next ''Dred Scott'' decision" could impose slavery on Northern states.<ref>{{Cite web |url=https://quod.lib.umich.edu/l/lincoln/lincoln3/1:1?rgn=div1;singlegenre=All;sort=occur;subview=detail;type=simple;view=fulltext;q1=next+dred+scott+decision |title=First Lincoln Douglas Debate at Ottawa, Illinois August 21, 1858 |access-date=June 9, 2022 |archive-date=June 9, 2022 |archive-url=https://web.archive.org/web/20220609131547/https://quod.lib.umich.edu/l/lincoln/lincoln3/1:1?rgn=div1;singlegenre=All;sort=occur;subview=detail;type=simple;view=fulltext;q1=next+dred+scott+decision |url-status=live }}</ref><ref>Don E. Fehrenbacher, ''[[The Dred Scott Case: Its Significance in American Law and Politics]]'' (1978), pp. 445–446.</ref>

Historians agree that the decision dramatically inflamed tensions leading to the Civil War.<ref name=Carrafiello-A>{{Cite journal |last=Carrafiello |first=Michael L. |date=Spring 2010 |title=Diplomatic Failure: James Buchanan's Inaugural Address |url=https://journals.psu.edu/phj/article/view/59920/59737 |journal=Pennsylvania History |volume=77 |issue=2 |pages=145–165 |doi=10.5325/pennhistory.77.2.0145 |jstor=10.5325/pennhistory.77.2.0145 |access-date=December 26, 2022 |archive-date=December 26, 2022 |archive-url=https://web.archive.org/web/20221226052553/https://journals.psu.edu/phj/article/view/59920/59737 |url-status=live |url-access=subscription |doi-access=free }}</ref><ref>Gregory J. Wallance, "The Lawsuit That Started the Civil War." ''Civil War Times'' 45: 46–52.</ref><ref>Roberta Alexander, "Dred Scott: The decision that sparked a civil war." ''Northern Kentucky Law Review'' 34 (2007): 643+ [https://heinonline.org/HOL/LandingPage?handle=hein.journals/nkenlr34&div=32&id=&page= excerpt] {{Webarchive|url=https://web.archive.org/web/20221226051351/https://heinonline.org/HOL/LandingPage?handle=hein.journals/nkenlr34&div=32&id=&page= |date=December 26, 2022 }}.</ref> In 2022 historian [[David W. Blight]] argued that the year 1857 was "the great pivot on the road to disunion...largely because of the Dred Scott case, which stoked the fear, distrust and conspiratorial hatred already common in both the North and the South to new levels of intensity."<ref>David W. Blight, "Was the Civil War Inevitable?"  [https://www.nytimes.com/2022/12/21/magazine/civil-war-jan-6.html?campaign_id=2&emc=edit_th_20221225&instance_id=81112&nl=todaysheadlines&regi_id=8258846&segment_id=120813&user_id=1c19d41d13bc01bd139ed1efb9272ccf ''The New York Times'' Dec. 22, 2022] {{Webarchive|url=https://web.archive.org/web/20221226052225/https://www.nytimes.com/2022/12/21/magazine/civil-war-jan-6.html?campaign_id=2&emc=edit_th_20221225&instance_id=81112&nl=todaysheadlines&regi_id=8258846&segment_id=120813&user_id=1c19d41d13bc01bd139ed1efb9272ccf |date=December 26, 2022 }}</ref>

===Buchanan, Republicans and anti-administration Democrats===
{{See also|Lecompton Constitution|Stephen A. Douglas|James Buchanan}}
President [[James Buchanan]] decided to end the troubles in Kansas by urging Congress to admit Kansas as a slave state under the Lecompton Constitution. Kansas voters, however, soundly rejected this constitution by a vote of 10,226 to 138. As Buchanan directed his presidential authority to promoting the Lecompton Constitution, he further angered the Republicans and alienated members of his own party. Prompting their break with the administration, the Douglasites saw this scheme as an attempt to pervert the principle of popular sovereignty on which the Kansas–Nebraska Act was based. Nationwide, conservatives were incensed, feeling as though the principles of [[states' rights]] had been violated. Even in the South, ex-Whigs and [[Border states (American Civil War)|border state]] Know-Nothings{{snd}}most notably [[John Bell (Tennessee politician)|John Bell]] and [[John J. Crittenden]] (key figures in the event of sectional controversies){{snd}}urged the Republicans to oppose the administration's moves and take up the demand that the territories be given the power to accept or reject slavery.{{citation needed|date=December 2015}}
[[File:Buchanan-thumbnail.jpg|left|thumb|President James Buchanan]]

As the schism in the Democratic party deepened, moderate Republicans argued that an alliance with anti-administration Democrats, especially Stephen Douglas, would be a key advantage in the [[1860 United States presidential election|1860 elections]]. Some Republican observers saw the controversy over the Lecompton Constitution as an opportunity to peel off Democratic support in the border states, where Frémont picked up little support. After all, the border states had often gone for Whigs with a Northern base of support in the past without prompting threats of Southern withdrawal from the Union.{{citation needed|date=December 2015}}

Among the proponents of this strategy was ''[[The New York Times]]'', which called on the Republicans to downplay opposition to popular sovereignty in favor of a compromise policy calling for "no more slave states" in order to quell sectional tensions. The ''Times'' maintained that for the Republicans to be competitive in the 1860 elections, they would need to broaden their base of support to include all voters who for one reason or another were upset with the Buchanan Administration.{{citation needed|date=December 2015}}

Indeed, pressure was strong for an alliance that would unite the growing opposition to the Democratic Administration. But such an alliance was no novel idea; it would essentially entail transforming the Republicans into the national, conservative, Union party of the country. In effect, this would be a successor to the [[Whig Party (United States)|Whig party]].{{citation needed|date=December 2015}}

Republican leaders, however, staunchly opposed any attempts to modify the party position on slavery, appalled by what they considered a surrender of their principles when, for example, all the ninety-two Republican members of Congress voted for the [[Crittenden-Montgomery bill]] in 1858. Although this compromise measure blocked Kansas' entry into the union as a slave state, the fact that it called for popular sovereignty, instead of rejecting slavery altogether, was troubling to the party leaders.{{citation needed|date=December 2015}}

In the end, the Crittenden-Montgomery bill did not create a grand anti-administration coalition of Republicans, ex-Whig Southerners in the border states, and Northern Democrats. Instead, the Democratic Party merely split along sectional lines. Anti-Lecompton Democrats complained that certain leaders had imposed a pro-slavery policy upon the party. The Douglasites, however, refused to yield to administration pressure. Like the anti-Nebraska Democrats, who were now members of the Republican Party, the Douglasites insisted that they{{snd}}not the administration{{snd}}commanded the support of most northern Democrats.{{citation needed|date=December 2015}}

Extremist sentiment in the South advanced dramatically as the Southern planter class perceived its hold on the executive, legislative, and judicial apparatuses of the central government wane. It also grew increasingly difficult for Southern Democrats to manipulate power in many of the Northern states through their allies in the Democratic Party.{{citation needed|date=December 2015}}

===Honor===
Historians have emphasized that the sense of honor was a central concern of upper-class white Southerners.<ref>Bertram Wyatt-Brown, ''Southern Honor: Ethics and Behavior in the Old South'' (1982) pp. 22–23, 363</ref> The idea of being treated like a second-class citizen was anathema and could not be tolerated by an honorable southerner. The abolitionist position held that slavery was a negative or evil phenomenon that damaged the rights of white men and the prospects of republicanism. To the white South this rhetoric made Southerners second-class citizens because it trampled what they believed was their Constitutional right to take their chattel property anywhere.<ref>{{cite book|author=Christopher J. Olsen|title=Political Culture and Secession in Mississippi: Masculinity, Honor, and the Antiparty Tradition, 1830–1860|url=https://books.google.com/books?id=RrBb2ThDuCkC&pg=PA237|year=2002|publisher=Oxford University Press|page=237|isbn=978-0195160970|access-date=December 11, 2015|archive-date=May 1, 2016|archive-url=https://web.archive.org/web/20160501064322/https://books.google.com/books?id=RrBb2ThDuCkC&pg=PA237|url-status=live}} footnote 33</ref><ref>{{cite book|editor=Lacy Ford|title=A Companion to the Civil War and Reconstruction|url=https://books.google.com/books?id=xeQAERwie80C&pg=PT28%7C|year=2011|publisher=Wiley|page=28|isbn=978-1444391626|access-date=December 11, 2015|archive-date=April 28, 2016|archive-url=https://web.archive.org/web/20160428012457/https://books.google.com/books?id=xeQAERwie80C&pg=PT28%7C|url-status=live}}</ref>

====Assault on Sumner (1856)====
{{Main|Caning of Charles Sumner}}
[[File:Southern Chivalry.jpg|thumb|Northern image of the 1856 attack on Sumner]]

On May 19 Massachusetts Senator [[Charles Sumner]] gave a long speech in the Senate entitled [[s:The Crime against Kansas|"The Crime Against Kansas]]", which condemned the [[Slave Power]] as the evil force behind the nation's troubles. Sumner said the Southerners had committed a "crime against Kansas", singling out Senator [[Andrew P. Butler]] of South Carolina.<ref>Michael William Pfau, "Time, Tropes, and Textuality: Reading Republicanism in Charles Sumner's 'Crime Against Kansas'", ''Rhetoric & Public Affairs'' vol 6 #3 (2003) 385–413, quote on p. 393 [http://muse.jhu.edu/journals/rhetoric_and_public_affairs/v006/6.3pfau.html online in Project MUSE] {{Webarchive|url=https://web.archive.org/web/20200406041127/https://muse.jhu.edu/article/48700 |date=April 6, 2020 }}</ref> Sumner famously cast the South Carolinian as having "chosen a mistress ... who, though ugly to others, is always lovely to him; though polluted in the sight of the world, is chaste in his sight{{snd}}I mean the harlot, slavery!"<ref>In modern terms Sumner accused Butler of being a "pimp who attempted to introduce the whore, slavery, into Kansas" says {{cite book|author1=Judith N. McArthur|author2=Orville Vernon Burton|title="A Gentleman and an Officer": A Military and Social History of James B. Griffin's Civil War|url=https://books.google.com/books?id=ZRDsgcnbqr8C&pg=PA40|year=1996|publisher=Oxford U.P.|page=40|isbn=978-0195357660|access-date=December 11, 2015|archive-date=September 23, 2015|archive-url=https://web.archive.org/web/20150923102838/https://books.google.com/books?id=ZRDsgcnbqr8C&pg=PA40|url-status=live}}</ref> According to Williamjames Hull Hoffer, "It is also important to note the sexual imagery that recurred throughout the oration, which was neither accidental nor without precedent. Abolitionists routinely accused slaveholders of maintaining slavery so that they could engage in forcible sexual relations with their slaves."<ref>Williamjames Hull Hoffer, ''The Caning of Charles Sumner: Honor, Idealism, and the Origins of the Civil War'' (2010), p. 62.</ref> Three days later, Sumner, working at his desk on the Senate floor, was beaten almost to death by Congressman [[Preston S. Brooks]], Butler's nephew. Sumner took years to recover; he became the martyr to the antislavery cause and said that the episode proved the barbarism of slave society. Brooks was lauded as a hero upholding Southern honor. The episode further polarized North and South, strengthened the new Republican Party, and added a new element of violence on the floor of Congress.<ref>William E. Gienapp, "The Crime Against Sumner: The Caning of Charles Sumner and the Rise of the Republican Party", ''Civil War History'' (1979) 25#3 pp. 218–245 {{doi|10.1353/cwh.1979.0005}}</ref>

==Emergence of Lincoln==
{{Main| Presidency of James Buchanan|History of the Republican Party (United States)}}

===Republican Party structure===
[[File:William Seward, Secretary of State, bw photo portrait circa 1860-1865.jpg|thumb|right|upright=.9|[[William H. Seward]], Secretary of State under Abraham Lincoln and Andrew Johnson]]

Despite their significant loss in the [[1856 United States presidential election|election of 1856]], Republican leaders realized that even though they appealed only to Northern voters, they needed to win only two more states, such as Pennsylvania and Illinois, to win the presidency in 1860.{{citation needed|date=December 2015}}

As the Democrats were grappling with their own troubles, leaders in the Republican party fought to keep elected members focused on the issue of slavery in the West, which allowed them to mobilize popular support. Chase wrote Sumner that if the conservatives succeeded, it might be necessary to recreate the Free Soil Party. He was also particularly disturbed by the tendency of many Republicans to eschew moral attacks on slavery for political and economic arguments.{{citation needed|date=December 2015}}

The controversy over slavery in the West was still not creating a fixation on the issue of slavery. Although the old restraints on the sectional tensions were being eroded with the rapid extension of [[mass politics]] and mass democracy in the North, the perpetuation of conflict over the issue of slavery in the West still required the efforts of radical Democrats in the South and radical Republicans in the North. They had to ensure that the sectional conflict would remain at the center of the political debate.{{citation needed|date=December 2015}}

[[William H. Seward|William Seward]] contemplated this potential in the 1840s, when the Democrats were the nation's majority party, usually controlling Congress, the presidency, and many state offices. The country's institutional structure and party system allowed slaveholders to prevail in more of the nation's territories and to garner a great deal of influence over national policy. With growing popular discontent with the unwillingness of many Democratic leaders to take a stand against slavery, and growing consciousness of the party's increasingly pro-Southern stance, Seward became convinced that the only way for the Whig Party to counteract the Democrats' strong monopoly of the rhetoric of democracy and equality was for the Whigs to embrace anti-slavery as a party platform. Once again, to increasing numbers of Northerners, the Southern labor system was increasingly seen as contrary to the ideals of American democracy.{{citation needed|date=December 2015}}

Republicans believed in the existence of "the Slave Power Conspiracy", which had seized control of the federal government and was attempting to pervert the Constitution for its own purposes. The "Slave Power" idea gave the Republicans the anti-aristocratic appeal with which men like Seward had long wished to be associated politically. By fusing older anti-slavery arguments with the idea that slavery posed a threat to Northern free labor and democratic values, it enabled the Republicans to tap into the egalitarian outlook which lay at the heart of Northern society.{{citation needed|date=December 2015}}

In this sense, during the 1860 presidential campaign, Republican orators even cast "Honest Abe" as an embodiment of these principles, repeatedly referring to him as "the child of labor" and "son of the frontier", who had proved how "honest industry and toil" were rewarded in the North. Although Lincoln had been a Whig, the "[[Wide Awakes]]" (members of the Republican clubs) used replicas of rails that he had split to remind voters of his humble origins.{{citation needed|date = December 2015}}

In almost every northern state, organizers attempted to have a Republican Party or an anti-Nebraska fusion movement on ballots in 1854. <!-- The groundswell of popular clamor fed by the issue of free soil, however, was powerful enough to thwart these aims. Conservatives were not able to ensure the nomination of a candidate regarded as moderate enough in the South so as to not inspire the secession of Southern states in 1860. parag is about 1854, no? --> In areas where the radical Republicans controlled the new organization, the comprehensive radical program became the party policy. Just as they helped organize the Republican Party in the summer of 1854, the radicals played an important role in the national organization of the party in 1856. Republican conventions in New York, Massachusetts, and Illinois adopted radical platforms. These radical platforms in such states as [[Wisconsin]], [[Michigan]], [[Maine]], and [[Vermont]] usually called for the divorce of the government from slavery, the repeal of the [[Fugitive slave laws in the United States|Fugitive Slave Laws]], and no more slave states, as did platforms in [[Pennsylvania]], [[Minnesota]], and Massachusetts when radical influence was high.{{citation needed|date=December 2015}}

Conservatives at the Republican 1860 [[United States presidential nominating convention|nominating convention]] in [[Chicago]] were able to block the nomination of [[William H. Seward|William Seward]], who had an earlier reputation as a radical (but by 1860 had been criticized by [[Horace Greeley]] as being too moderate). Other candidates had earlier joined or formed parties opposing the Whigs and had thereby made enemies of many delegates. Lincoln was selected on the third ballot. However, conservatives were unable to bring about the resurrection of "Whiggery". The convention's resolutions regarding slavery were roughly the same as they had been in 1856, but the language appeared less radical. In the following months, even Republican conservatives like [[Thomas Ewing]] and [[Edward D. Baker|Edward Baker]] embraced the platform language that "the normal condition of territories was freedom". All in all, the organizers had done an effective job of shaping the official policy of the Republican Party.{{citation needed|date=December 2015}}

Southern slaveholding interests now faced the prospects of a Republican president and the entry of new free states that would alter the nation's balance of power between the sections. To many Southerners, the resounding defeat of the Lecompton Constitution foreshadowed the entry of more free states into the Union. Dating back to the Missouri Compromise, the Southern region desperately sought to maintain an equal balance of slave states and free states so as to be competitive in the Senate. Since the last slave state was admitted in 1845, five more free states had entered. The tradition of maintaining a balance between North and South was abandoned in favor of the addition of more free soil states.{{citation needed|date=December 2015}}

===Sectional battles over federal policy in the late 1850s===

====Lincoln–Douglas Debates====
{{Main|Lincoln–Douglas debates}}
The Lincoln-Douglas debates were a series of seven debates in 1858 between [[Stephen A. Douglas|Stephen Douglas]], United States senator from Illinois, and [[Abraham Lincoln]], the Republican who sought to replace Douglas in the Senate. The debates were mainly about slavery. Douglas defended his [[Kansas–Nebraska Act]], which replaced the [[Missouri Compromise]] ban on slavery in the [[Louisiana Purchase]] territory north and west of [[Missouri]] with [[popular sovereignty]], which allowed residents of territories such as the [[Kansas Territory|Kansas]] to vote either for or against slavery. Douglas put Lincoln on the defensive by accusing him of being a Black Republican abolitionist, but Lincoln responded by asking Douglas to reconcile popular sovereignty with the [[Dred Scott v. Sandford|Dred Scott decision]]. Douglas' [[Freeport Doctrine]] was that residents of a territory could keep slavery out by refusing to pass a slave code and other laws needed to protect slavery. Douglas' Freeport Doctrine, and the fact that he helped defeat the pro-slavery [[Lecompton Constitution]], made Douglas unpopular in the South, which led to the 1860 split of the Democratic Party into Northern and Southern wings. The Democrats retained control of the Illinois legislature, and Douglas thus retained his seat in the U.S. Senate (at that time senators were elected by the state legislatures, not by popular vote); however, Lincoln's national profile was greatly raised, paving the way for his election as president of the United States two years later.{{citation needed|date=December 2015}}

====Background====
In ''The Rise of American Civilization'' (1927), [[Charles A. Beard|Charles and Mary Beard]] argue that slavery was not so much a social or cultural institution as an economic one (a labor system). The Beards cited inherent conflicts between Northeastern finance, manufacturing, and commerce and Southern plantations, which competed to control the federal government so as to protect their own interests. According to the economic determinists of the era, both groups used arguments over slavery and states' rights as a cover.{{citation needed|date=December 2015}}

Recent historians have rejected the Beardian thesis. But their economic determinism has influenced subsequent historians in important ways. ''[[Time on the Cross]]: The Economics of American Negro Slavery'' (1974) by [[Robert Fogel|Robert William Fogel]] (who would win the 1993 [[Nobel Memorial Prize in Economic Sciences]]) and [[Stanley Engerman|Stanley L. Engerman]], wrote that slavery was profitable and that the price of slaves would have continued to rise. Modernization theorists, such as [[Raimondo Luraghi]], have argued that as the [[Industrial Revolution]] was expanding on a worldwide scale, the days of wrath were coming for a series of agrarian, pre-capitalistic, "backward" societies throughout the world, from the Italian and American South to India. But most American historians point out the South was highly developed and on average about as prosperous as the North.{{citation needed|date=December 2015}}

====Panic of 1857 and sectional realignments====
[[File:abraham-lincoln.png|upright=0.9|thumb|left|"Vote yourself a farm{{snd}}vote yourself a tariff": a campaign slogan for [[Abraham Lincoln]] in 1860{{citation needed|date=March 2015}}]]

A few historians{{Who|date=July 2015}} believe that the serious financial [[Panic of 1857]] and the economic difficulties leading up to it strengthened the Republican Party and heightened sectional tensions. Before the panic, strong economic growth was being achieved under relatively low tariffs. Hence much of the nation concentrated on growth and prosperity.{{citation needed|date=December 2015}}

The iron and textile industries were facing acute, worsening trouble each year after 1850. By 1854, stocks of iron were accumulating in each world market. Iron prices fell, forcing many American iron mills to shut down.{{citation needed|date=December 2015}}

Republicans urged western farmers and northern manufacturers to blame the depression on the domination of the low-tariff economic policies of southern-controlled Democratic administrations. However, the depression revived suspicion of Northeastern banking interests in both the South and the West. Eastern demand for western farm products shifted the West closer to the North. As the "transportation revolution" (canals and railroads) went forward, an increasingly large share and absolute amount of [[wheat]], [[Maize|corn]], and other staples of western producers{{snd}}once difficult to haul across the [[Appalachian Mountains|Appalachians]]{{snd}}went to markets in the [[Northeastern United States|Northeast]]. The depression emphasized the value of the western markets for eastern goods and homesteaders who would furnish markets and respectable profits.{{citation needed|date=December 2015}}

Aside from the land issue, economic difficulties strengthened the Republican case for higher tariffs for industries in response to the depression. This issue was important in Pennsylvania and perhaps New Jersey.{{citation needed|date=December 2015}}

====Southern response====
Meanwhile, many Southerners grumbled over "radical" notions of giving land away to farmers that would "abolitionize" the area. While the ideology of Southern sectionalism was well-developed before the Panic of 1857 by figures like J.D.B. De Bow, the panic helped convince even more cotton barons that they had grown too reliant on Eastern financial interests.{{citation needed|date=December 2015}}
[[File:National-atlas-1970-1860.png|upright=1.5|thumb|The United States, immediately before the Civil War. All of the lands east of, or bordering, the Mississippi River were organized as states in the Union, but the West was still largely unsettled.]]
[[Thomas Kettell|Thomas Prentice Kettell]], former editor of the ''Democratic Review'', was another commentator popular in the South to enjoy a great degree of prominence between 1857 and 1860. Kettell gathered an array of statistics in his book on ''Southern Wealth and Northern Profits'', to show that the South produced vast wealth, while the North, with its dependence on raw materials, siphoned off the wealth of the South.<ref name="Donald, 1961">{{cite book |last=Donald |first=David |author2=Randall, J.G. |title=The Civil War and Reconstruction |location=Boston |publisher=D.C. Health and Company |year=1961 |page=79}}</ref> Arguing that sectional inequality resulted from the concentration of manufacturing in the North, and from the North's supremacy in communications, transportation, finance, and international trade, his ideas paralleled old [[Physiocracy|physiocratic]] doctrines that all profits of manufacturing and trade come out of the land.<ref name="Allan, 1947">{{cite book |last=Allan |first=Nevins |title=Ordeal of the Union (vol. 3) |location=New York |publisher=Charles Scribner's Sons |year=1947 |volume=III |page=218}}</ref> Political sociologists, such as Barrington Moore, have noted that these forms of romantic nostalgia tend to arise when industrialization takes hold.<ref name="Moore">Moore, Barrington, p. 122.</ref>

Such Southern hostility to the free farmers gave the North an opportunity for an alliance with Western farmers. After the political realignments of 1857–58{{snd}}manifested by the emerging strength of the Republican Party and their networks of local support nationwide{{snd}}almost every issue was entangled with the controversy over the expansion of slavery in the West. While questions of tariffs, banking policy, public land, and subsidies to railroads did not always unite all elements in the North and the Northwest against the interests of slaveholders in the South under the pre-1854 party system, they were translated in terms of sectional conflict{{snd}}with the expansion of slavery in the West involved.{{citation needed|date=December 2015}}

As the depression strengthened the Republican Party, slaveholding interests were becoming convinced that the North had aggressive and hostile designs on the Southern way of life. The South was thus increasingly fertile ground for secessionism.{{citation needed|date=December 2015}}

The Republicans' Whig-style personality-driven "hurrah" campaign helped stir hysteria in the slave states upon the emergence of Lincoln and intensify divisive tendencies, while Southern "fire eaters" gave credence to notions of the slave power conspiracy among Republican constituencies in the North and West. New Southern demands to re-open the [[Atlantic slave trade|African slave trade]] further fueled sectional tensions.{{citation needed|date=December 2015}}

From the early 1840s until the outbreak of the Civil War, the cost of slaves had been rising steadily. Meanwhile, the price of cotton was experiencing market fluctuations typical of raw commodities. After the Panic of 1857, the price of cotton fell while the price of slaves continued its steep rise. At the 1858 Southern commercial convention, William L. Yancey of [[Alabama]] called for the reopening of the African slave trade. Only the delegates from the states of the Upper South, who profited from the domestic trade, opposed the reopening of the slave trade since they saw it as a potential form of competition. The convention in 1858 wound up voting to recommend the repeal of all laws against slave imports, despite some reservations.{{citation needed|date=December 2015}}

===John Brown and Harpers Ferry (1859)===
{{Main|John Brown's raid on Harpers Ferry}}
On October 16, 1859, radical abolitionist [[John Brown (abolitionist)|John Brown]] led an attempt to start an armed slave revolt by seizing the [[Harpers Ferry Armory|U.S. Army arsenal]] at [[Harpers Ferry, West Virginia|Harper's Ferry, Virginia]] (now West Virginia). Brown and twenty-one followers, including whites (three of whom were Brown's sons) and Blacks (three free Blacks, one freedman, and one fugitive slave), planned to seize the armory and use weapons stored there to arm Black slaves in order to spark a general uprising by the slave population.

Although the raiders were initially successful in cutting the telegraph line and capturing the Armory, they allowed a passing train to continue, and at the next station with a working telegraph the conductor alerted authorities to the attack. The raiders were forced by the militia and other locals to barricade themselves in the Armory, in a sturdy building later known as [[John Brown's Fort]]. [[Robert E. Lee]] (then a colonel in the U.S. Army) led a company of U.S. Marines in storming the armory on October 18. Ten of the raiders were killed, including two of Brown's sons; Brown himself along with a half dozen of his followers were captured; five of the raiders escaped immediate capture. Six locals were killed and nine injured; the Marines suffered one dead and one injured.

Brown was subsequently hanged by the state of Virginia for treason, murder, and inciting a slave insurrection, as were six of his followers.<ref>{{cite book|last1=McGinty|first1=Brian|url=https://books.google.com/books?id=aZQxEsFJV-IC&q=john+brown%27s+trial|title=John Brown's Trial|date=2009|publisher=[[Harvard University Press]]|isbn=978-0-674-03517-1|access-date=June 23, 2022|archive-date=March 30, 2024|archive-url=https://web.archive.org/web/20240330163354/https://books.google.com/books?id=aZQxEsFJV-IC&q=john+brown%27s+trial#v=snippet&q=john%20brown's%20trial&f=false|url-status=live}}  [https://www.fedbar.org/wp-content/uploads/2009/10/bookreviewsoct09-pdf-1.pdf Reviewed] {{Webarchive|url=https://web.archive.org/web/20220706191119/https://www.fedbar.org/wp-content/uploads/2009/10/bookreviewsoct09-pdf-1.pdf |date=July 6, 2022 }}</ref> (See [[John Brown's raiders]].) The raid, trial, and execution were covered in great detail by the press, which sent reporters and sketch artists to the scene on the next train. It immediately became a [[:wikt:cause célèbre|cause célèbre]] in both the North and the South, with Brown vilified by Southerners as a bloodthirsty fanatic, but celebrated by many Northern abolitionists as a martyr to the cause of ending slavery.

===Elections of 1860===
{{Main|1860 United States presidential election}}
[[File:ElectoralCollege1860.svg|right|thumb|upright=1.5|1860 electoral map]]

Initially, [[William H. Seward]] of New York, [[Salmon P. Chase]] of Ohio, and [[Simon Cameron]] of Pennsylvania were the leading contenders for the Republican presidential nomination. But [[Abraham Lincoln]], a former one-term House member who gained fame amid the [[Lincoln–Douglas debates]] of 1858, had fewer political opponents within the party and outmaneuvered the other contenders. On May 16, 1860, he received the Republican nomination at their convention in [[Chicago]].{{citation needed|date=December 2015}}

The schism in the Democratic Party over the [[Lecompton Constitution]] and Douglas' [[Freeport Doctrine]] caused Southern "[[Fire-Eaters]]" to oppose front runner [[Stephen A. Douglas]]' bid for the Democratic presidential nomination. Douglas defeated the pro-slavery Lecompton Constitution for Kansas because the majority of Kansans were antislavery, and Douglas' popular sovereignty doctrine would allow the majority to vote slavery up or down as they chose. Douglas' Freeport Doctrine alleged that the antislavery majority of Kansans could thwart the [[Dred Scott]] decision that allowed slavery by withholding legislation for a slave code and other laws needed to protect slavery. As a result, Southern extremists demanded a slave code for the territories, and used this issue to divide the northern and southern wings of the Democratic Party. Southerners left the party and in June nominated [[John C. Breckinridge]], while Northern Democrats supported Douglas. As a result, the Southern planter class lost a considerable measure of sway in national politics. Because of the Democrats' division, the Republican nominee faced a divided opposition. Adding to Lincoln's advantage, ex-[[Whig Party (United States)|Whigs]] from the border states had earlier formed the [[Constitutional Union Party (United States)|Constitutional Union Party]], nominating [[John Bell (Tennessee politician)|John C. Bell]] for president. Thus, party nominees waged regional campaigns. Douglas and Lincoln competed for Northern votes, while Bell, Douglas and Breckinridge competed for Southern votes.{{citation needed|date=December 2015}}

====Result and impact of the election of 1860====
Lincoln handily won the electoral votes:<ref>{{cite web|title=1860 Presidential Election Results|url=http://uselectionatlas.org/RESULTS/national.php?year=1860|access-date=June 26, 2013|archive-date=September 27, 2013|archive-url=https://web.archive.org/web/20130927074600/http://uselectionatlas.org/RESULTS/national.php?year=1860|url-status=live}}</ref>
* '''''Abraham Lincoln: 180 (40% of the [[Direct election|popular vote]])'''''
* '''J.C. Breckinridge''': 72 (18% of the popular vote)
* '''John Bell''': 39 (13% of the popular vote)
* '''Stephen A. Douglas''': 12 (30% of the popular vote)
Voting [on November 6, 1860] split sharply along sectional lines. Lincoln was elected by carrying the electoral votes of the North; he had a sweeping majority of 180 electoral votes. Given the vote count in each state, he would still have won the electoral college even if all three opponents had somehow been able to merge their tickets.{{Citation needed|date=March 2015}}

===Split in the Democratic Party===
The Alabama extremist [[William Lowndes Yancey]]'s demand for a federal slave code for the territories split the Democratic Party between North and South, which made the election of Lincoln possible. Yancey tried to make his demand for a slave code moderate enough to get Southern support and yet extreme enough to enrage Northerners and split the party. He demanded that the party support a slave code for the territories ''if later necessary'', so that the demand would be conditional enough to win Southern support. His tactic worked, and lower South delegates left the Democratic Convention at Institute Hall in [[Charleston, South Carolina]], and walked over to Military Hall. The South Carolina extremist [[Robert Rhett|Robert Barnwell Rhett]] hoped that the lower South would completely break with the Northern Democrats and attend a separate convention at [[Richmond, Virginia]], but lower South delegates gave the national Democrats one last chance at unification by going to the convention at [[Baltimore|Baltimore, Maryland]], before the split became permanent. The result was that [[John C. Breckinridge]] became the candidate of the Southern Democrats, and [[Stephen A. Douglas|Stephen Douglas]] became the candidate of the Northern Democrats.<ref name="DemocraticPartySplit">William W. Freehling, ''The Road to Disunion: Secessionists Triumphant 1854–1861'', pp. 271–341</ref>

Yancey's previous 1848 attempt at demanding a slave code for the territories was his [[William Lowndes Yancey|Alabama Platform]], which was in response to the Northern [[Wilmot Proviso]] attempt at banning slavery in territories conquered from [[Mexico]]. Justice [[Peter Vivian Daniel|Peter V. Daniel]] wrote a letter about the Proviso to former President [[Martin Van Buren]]: "It is that view of the case which pretends to an insulting exclusiveness or superiority on the one hand, and denounces a degrading inequality or inferiority on the other; which says in effect to the Southern man, 'Avaunt! you are not my equal, and hence are to be excluded as carrying a moral taint with you.' Here is at once the extinction of all fraternity, of all sympathy, of all endurance even; the creation of animosity fierce, implacable, undying."<ref>Don E. Fehrenbacher (1978/2001), New York: Oxford, Part III, ''Echoes and Consequences'', Chapter 22, "Reasons Why" [cf. "[[Charge of the Light Brigade]]"], p. 561; Daniel to Van Buren, November 1, 1847, Martin Van Buren Papers, Manuscript Division, Library of Congress.</ref> Both the Alabama Platform and the Wilmot Proviso failed, but Yancey learned to be less overtly radical in order to get more support. Southerners thought they were merely demanding equality, in that they wanted Southern property in slaves to get the same (or more) protection as Northern forms of property.<ref name="DemocraticPartySplit" />

===Southern secession===
[[File:Charleston Mercury Secession Broadside, 1860.jpg|thumb|upright|right|The first published Confederate imprint of secession]]
With the emergence of the Republicans as the nation's first major sectional party by the mid-1850s, politics became the stage on which sectional tensions were played out. Although much of the West{{snd}}the focal point of sectional tensions{{snd}}was unfit for cotton cultivation, Southern secessionists read the political fallout as a sign that their power in national politics was rapidly weakening. Before, the slave system had been buttressed to an extent by the Democratic Party, which was increasingly seen as representing a more pro-Southern position that unfairly permitted Southerners to prevail in the nation's territories and to dominate national policy before the Civil War. But Democrats suffered a significant reverse in the electoral realignment of the mid-1850s. 1860 was a critical election that marked a stark change in existing patterns of party loyalties among groups of voters; Abraham Lincoln's election was a watershed in the balance of power of competing national and parochial interests and affiliations.<ref>Roy Nichols, ''The Disruption of American Democracy: A History of the Political Crisis That Led up to the Civil War'' (1949)</ref>

Immediately after finding out the election results, a special South Carolina convention [[South Carolina Declaration of Secession|declared]] "that the Union now subsisting between South Carolina and other states under the name of the 'United States of America' is hereby dissolved;" by February six more cotton states would follow ([[Mississippi Secession Ordinance|Mississippi]], Florida, Alabama, Georgia, Louisiana, Texas), forming the [[Confederate States of America]]. In 1960, Lipset examined the secessionist vote in each Southern state in 1860–61. In each state he divided the counties by the proportion of slaves, low, medium and high. He found that in the 181 high-slavery counties, the vote was 72% for secession. In the 205 low-slavery counties, the vote was only 37% for secession, and in the 153 middle counties, the vote for secession was at 60%.<ref>Seymour Martin Lipset, ''Political Man: The Social Bases of Politics'' (Doubleday, 1960) p. 349.</ref> Both the outgoing Buchanan administration and the incoming Lincoln administration refused to recognize the legality of secession or the legitimacy of the Confederacy. After Lincoln called for troops, four border states (that lacked cotton) seceded (Virginia, Arkansas, North Carolina, Tennessee).<ref>Maury Klein, ''Days of Defiance: Sumter, Secession, and the Coming of the Civil War'' (1999)</ref> The Upper Southern States were in a dilemma: they wanted to retain their slaves but were afraid that if they joined with the lower southern states that were rebelling they would be caught in the middle of a conflict, and their states would be the battle ground. By staying in the Union the Upper Southern states felt that their slave rights would continue to be recognized by the Union.{{citation needed|date=December 2015}}

===Other issues===
The [[tariff]] issue was and is sometimes cited{{snd}}long after the war{{snd}}by [[Lost Cause of the Confederacy|Lost Cause]] historians and [[neo-Confederate]] apologists. In 1860–61 none of the groups that proposed compromises to head off secession brought up the tariff issue as a major issue.<ref>Robert Gray Gunderson, ''Old Gentleman's Convention: The Washington Peace Conference of 1861''. (1961)</ref> Pamphleteers North and South rarely mentioned the tariff,<ref>{{cite book|author=Jon L. Wakelyn|title=Southern Pamphlets on Secession, November 1860–April 1861|url=https://books.google.com/books?id=By6K9VHfWtIC&pg=PT23|year=1996|publisher=U. of North Carolina Press|pages=23–30|isbn=978-0-8078-6614-6|access-date=December 11, 2015|archive-date=May 14, 2016|archive-url=https://web.archive.org/web/20160514182307/https://books.google.com/books?id=By6K9VHfWtIC&pg=PT23|url-status=live}}</ref> and when some did, for instance, [[Matthew Fontaine Maury]]<ref>Matthew Fontaine Maury (1861/1967), "Captain Maury's Letter on American Affairs: A Letter Addressed to Rear-Admiral Fitz Roy, of England", reprinted in Frank Friedel, ed., ''Union Pamphlets of the Civil War: 1861–1865'', Cambridge, MA: Harvard, A John Harvard Library Book, Vol. I, pp. 171–73.</ref> and [[John Lothrop Motley]],<ref>John Lothrop Motley (1861/1967), "The Causes of the American Civil War: A Paper Contributed to [[The Times|the London Times]]", reprinted in Frank Friedel, ed., ''Union Pamphlets of the Civil War: 1861–1865'', Cambridge, Massachusetts: Harvard, A John Harvard Library Book, Vol.1, p. 51.</ref> they were generally writing for a foreign audience.

The tariff in effect prior to the enactment of the [[Morrill Tariff]] of 1861 had been written and approved by the South for the benefit of the South. Complaints came from the Northeast (especially Pennsylvania) and regarded the rates as too low. Some Southerners feared that eventually the North would grow so big that it would control Congress and could raise the tariff at will.<ref>Richard Hofstadter, "The Tariff Issue on the Eve of the Civil War", ''American Historical Review'' Vol. 44, No. 1 (October 1938), pp.&nbsp;50–55 [https://www.jstor.org/stable/1840850 in JSTOR] {{Webarchive|url=https://web.archive.org/web/20161017035830/https://www.jstor.org/stable/1840850 |date=October 17, 2016 }}</ref>

As for states' rights, while a state's right of revolution mentioned in the Declaration of Independence was based on the inalienable equal rights of man, secessionists believed in a modified version of states' rights that was safe for slavery.<ref name="Freehling_1854_1861">William W. Freehling, ''The Road to Disunion, Secessionists Triumphant: 1854–1861'', pp. 345–516</ref>

These issues were especially important in the lower South, where 47 percent of the population were slaves. The upper South, where 32 percent of the population were slaves, considered the [[Battle of Fort Sumter|Fort Sumter crisis]]{{snd}}especially [[Proclamation 80|Lincoln's call for militiamen]] to march south to recapture it{{snd}}a cause for secession. The northernmost border slave states, where 13 percent of the population were slaves, did not secede.<ref>Daniel Crofts, ''Reluctant Confederates: Upper South Unionists in the Secession Crisis'' (1989)</ref>

==Fort Sumter==
When [[South Carolina in the American Civil War|South Carolina seceded]] in December 1860, Major [[Robert Anderson (Union officer)|Robert Anderson]], a pro-slavery, former slave owner from [[Kentucky]], remained loyal to the Union. He was the commanding officer of United States Army forces in [[Charleston, South Carolina]]{{snd}}the last remaining important Union post in the [[Deep South]]. Acting upon orders from the War Department to hold and defend the U.S. forts, he moved his small garrison from [[Fort Moultrie]], which was indefensible, to the more modern, more defensible, [[Fort Sumter]] in the middle of [[Charleston Harbor]]. South Carolina leaders cried betrayal, while the North celebrated with enormous excitement at this show of defiance against secessionism. In February 1861 the [[Confederate States of America]] were formed and took charge. Jefferson Davis, the Confederate president, ordered the fort be captured. The artillery attack was commanded by [[General officers in the Confederate States Army|Brig. Gen.]] [[P. G. T. Beauregard]], who had been Anderson's student at West Point. The attack began April 12, 1861, and continued until Anderson, badly outnumbered and outgunned, surrendered the fort on April 14. The battle began the American Civil War, as an overwhelming demand for war swept both the North and South, with only Kentucky attempting to remain neutral.<ref>Adam Goodheart, ''1861: The Civil War Awakening '' (2011) ch. 2–5</ref>
[[File:Fort Sumter telegram.jpg|left|thumb|upright|Robert Anderson's telegram announcing the surrender of Fort Sumter]]

According to Adam Goodheart (2011), the modern meaning of the [[Flag of the United States|American flag]] was also forged in the defense of Fort Sumter. Thereafter, the flag was used throughout the North to symbolize American nationalism and rejection of secessionism.

{{Blockquote|Before that day, the flag had served mostly as a military ensign or a convenient marking of American territory, flown from forts, embassies, and ships, and displayed on special occasions like the [[Fourth of July]]. But in the weeks after Major Anderson's surprising stand, it became something different. Suddenly the Stars and Stripes flew{{snd}}as it does today, and especially as it did after [[September 11 attacks|September 11]]{{snd}}from houses, from storefronts, from churches; above the village greens and college quads. For the first time American flags were mass-produced rather than individually stitched and even so, manufacturers could not keep up with demand. As the long winter of 1861 turned into spring, that old flag meant something new. The abstraction of the Union cause was transfigured into a physical thing: strips of cloth that millions of people would fight for, and many thousands die for.<ref>Adam Goodheart, "Prologue", in ''1861: The Civil War Awakening '' (2011)</ref>}}

==Historiographical debates on causes==
{{main|Historiographic issues about the American Civil War}}
[[File:HenryWilson.jpg|thumb|right|[[Henry Wilson]], author of ''[[History of the Rise and Fall of the Slave Power in America|History of The Rise and Fall of the Slave Power in America]]'' (1872–1877)]]

Abraham Lincoln's rejection of the [[Crittenden Compromise]], the failure to secure the ratification of the [[Corwin Amendment]] in 1861, and the inability of the Washington [[Peace Conference of 1861]] to provide an effective alternative to Crittenden and Corwin came together to prevent a compromise that is still debated by Civil War historians. Even as the war was going on, William Seward and James Buchanan were outlining a debate over the question of inevitability that would continue among historians.<ref>Steven E. Woodworth, ed., ''The American Civil War: A Handbook of Literature and Research'' (1996) pp. 131–143</ref>

===Needless war argument===
Two competing explanations of the sectional tensions inflaming the nation emerged even before the war. The first was the "Needless War" argument.<ref>Thomas J. Pressly, ''Americans Interpret Their Civil War'' (1954) pp. 127–148</ref> Buchanan believed the sectional hostility to be the accidental, unnecessary work of self-interested or fanatical agitators. He also singled out the "fanaticism" of the Republican Party. Seward, on the other hand, believed there to be an irrepressible conflict between opposing and enduring forces. Shelden argues that, "Few scholars in the twenty-first century would call the Civil War 'needless,' as the emancipation of 4 million slaves hinged on Union victory."<ref>{{cite book|author=Rachel A. Shelden|title=Washington Brotherhood: Politics, Social Life, and the Coming of the Civil War|url=https://books.google.com/books?id=pZj9AQAAQBAJ&pg=PA5|year=2013|publisher=U of North Carolina Press|page=5|isbn=978-1469610856|access-date=December 11, 2015|archive-date=June 2, 2016|archive-url=https://web.archive.org/web/20160602220259/https://books.google.com/books?id=pZj9AQAAQBAJ&pg=PA5|url-status=live}}</ref>

===Irrepressible conflict argument===
The "Irrepressible Conflict" argument was the first to dominate historical discussion.<ref>Thomas J. Pressly, ''Americans Interpret Their Civil War'' (1954) pp. 149–226</ref> In the first decades after the fighting, histories of the Civil War generally reflected the views of Northerners who had participated in the conflict. The war appeared to be a stark moral conflict in which the South was to blame, a conflict that arose as a result of the designs of slave power. [[Henry Wilson]]'s ''[[History of the Rise and Fall of the Slave Power in America]]'' (1872–1877) is the foremost representative of this moral interpretation, which argued that Northerners had fought to preserve the union against the aggressive designs of "slave power". Later, in his seven-volume ''History of the United States from the Compromise of 1850 to the Civil War'' (1893–1900), [[James Ford Rhodes]] identified slavery as the central{{snd}}and virtually only{{snd}}cause of the Civil War. The North and South had reached positions on the issue of slavery that were both irreconcilable and unalterable. The conflict had become inevitable.{{citation needed|date = December 2015}}

===Revisionists===
The idea that the war was avoidable became central among historians in the 1920s, 1930s and 1940s. Revisionist historians, led by [[James G. Randall]] (1881–1953) at the University of Illinois, [[Woodrow Wilson]] (1856–1924) at Princeton University and [[Avery Craven]] (1885–1980) at the University of Chicago, saw in the social and economic systems of the South no differences so fundamental as to require a war. Historian [[Mark E. Neely Jr.|Mark Neely]] explains their position:

<blockquote>Revisionism challenged the view that fundamental and irreconcilable sectional differences made the outbreak of war inevitable. It scorned a previous generation's easy identification of the Northern cause with abolition, but it continued a tradition of hostility to the [[Reconstruction era|Reconstruction]] measures that followed the war. The Civil War became a needless conflict brought on by a blundering generation that exaggerated sectional differences between North and South. Revisionists revived the reputation of the Democratic party as great nationalists before the war and as dependable loyalists during it. Revisionism gave Lincoln's Presidency a tragic beginning at Fort Sumter, a rancorous political setting of bitter factional conflicts between radicals and moderates within Lincoln's own party, and an even more tragic ending. The benevolent Lincoln died at the moment when benevolence was most needed to blunt radical designs for revenge on the South.<ref>Mark E. Neely, "The Lincoln Theme Since Randall's Call: The Promises and Perils of Professionalism." ''Papers of the Abraham Lincoln Association'' 1 (1979): 10–70. [http://quod.lib.umich.edu/j/jala/2629860.0001.104/--lincoln-theme-since-randalls-call-the-promises-and-perils?rgn=main;view=fulltext online] {{Webarchive|url=https://web.archive.org/web/20150908200737/http://quod.lib.umich.edu/j/jala/2629860.0001.104/--lincoln-theme-since-randalls-call-the-promises-and-perils?rgn=main;view=fulltext |date=September 8, 2015 }}</ref></blockquote>

Randall blamed the ineptitude of a "blundering generation" of leaders. He also saw slavery as essentially a benign institution, crumbling in the presence of 19th century tendencies.<ref>James G. Randall, "The Blundering Generation." ''Mississippi Valley Historical Review'' 27.1 (1940): 3–28. [https://www.jstor.org/stable/1896569 in JSTOR] {{Webarchive|url=https://web.archive.org/web/20160303115023/http://www.jstor.org/stable/1896569 |date=March 3, 2016 }}</ref> Craven, the other leading revisionist, placed more emphasis on the issue of slavery than Randall but argued roughly the same points. In ''The Coming of the Civil War'' (1942), Craven argued that slave laborers were not much worse off than Northern workers, that the institution was already on the road to ultimate extinction, and that the war could have been averted by skillful and responsible leaders in the tradition of Congressional statesmen [[Henry Clay]] and [[Daniel Webster]]. Two of the key leaders in antebellum politics, Clay and Webster, in contrast to the 1850s generation of leaders, shared a predisposition to compromises marked by a passionate patriotic devotion to the Union.<ref>Avery Craven, ''The Coming of the Civil War'' (1942).</ref><ref>Avery Craven, "Coming of the War Between the States: An Interpretation." ''Journal of Southern History'' 2#3 (1936): 303–322. [https://www.jstor.org/stable/2191911 in JSTOR] {{Webarchive|url=https://web.archive.org/web/20160303123059/http://www.jstor.org/stable/2191911 |date=March 3, 2016 }}</ref>

But it is possible that the politicians of the 1850s were not inept. More recent studies have kept elements of the revisionist interpretation alive, emphasizing the role of political agitation (the efforts of Democratic politicians of the South and Republican politicians in the North to keep the sectional conflict at the center of the political debate). [[David Herbert Donald]] (1920–2009), a student of Randall, argued in 1960 that the politicians of the 1850s were not unusually inept but that they were operating in a society in which traditional restraints were being eroded in the face of the rapid extension of democracy. The stability of the two-party system kept the union together, but would collapse in the 1850s, thus reinforcing, rather than suppressing, sectional conflict. The union, Donald said, died of democracy.<ref>David H. Donald, "Died of Democracy." in Donald, ed., ''Why the North Won the Civil War'' (1960) pp. 79–90.</ref>

==See also==
{{Portal|American Civil War}}
* [[Compensated emancipation]]
* [[Conclusion of the American Civil War]]
* [[Timeline of events leading to the American Civil War]]

==Notes==
{{Reflist|30em}}

==References==
For additional sources: [[Bibliography of the American Civil War]] and [[Bibliography of slavery in the United States]]
* Craven, Avery. ''The Coming of the Civil War'' (1942) {{ISBN|0-226-11894-0}}
* Donald, David Herbert; Baker, Jean Harvey; and Holt, Michael F. ''The Civil War and Reconstruction'' (2001)
* Ellis, Richard E. ''The Union at Risk: Jacksonian Democracy, States' Rights and the Nullification Crisis'' (1987)
* [[Don E. Fehrenbacher|Fehrenbacher, Don E.]] ''The Slaveholding Republic: An Account of the United States Government's Relations to Slavery'' (2001) {{ISBN|0-19-514177-6}}
* Forbes, Robert Pierce. ''The Missouri Compromise and Its Aftermath: Slavery and the Meaning of America'' (2007) {{ISBN|978-0-8078-3105-2}}
* [[William W. Freehling|Freehling, William W.]] ''Prelude to Civil War: The Nullification Crisis in South Carolina 1816–1836'' (1965) {{ISBN|0-19-507681-8}}
* Freehling, William W. ''The Road to Disunion: Secessionists at Bay 1776–1854'' (1990) {{ISBN|0-19-505814-3}}
* Freehling, William W. and Craig M. Simpson, eds. ''Secession Debated: Georgia's Showdown in 1860'' (1992), speeches
* Hesseltine, William B., ed. ''The Tragic Conflict: The Civil War and Reconstruction'' (1962), primary documents
* Huston, James L. ''Calculating the Value of the Union: Slavery, Property Rights, and the Economic Origins of the Civil War.'' (2003) {{ISBN|0-8078-2804-1}}
* Mason, Matthew. ''Slavery and Politics in the Early American Republic'' (2006) {{ISBN|978-0-8078-3049-9}}
* McDonald, Forrest. ''States' Rights and the Union: Imperium in Imperio, 1776–1876'' (2000)
* {{cite book|last=McPherson|first=James M.|title=Battle Cry of Freedom: The Civil War Era|title-link=Battle Cry of Freedom: The Civil War Era|publisher=Oxford University Press|year=1988|isbn=978-0-19-503863-7|location=Oxford, New York}}
* McPherson, James M. ''This Mighty Scourge: Perspectives on the Civil War'' (2007)
* Miller, William Lee. ''Arguing About Slavery: John Quincy Adams and the Great Battle in the United States Congress'' (1995) {{ISBN|0-394-56922-9}}
* Nichols, Roy. ''The Disruption of American Democracy: A History of the Political Crisis That Led up to the Civil War'' (1949) [https://archive.org/details/in.ernet.dli.2015.61505 online]
* Niven, John. ''John C. Calhoun and the Price of Union'' (1988) {{ISBN|0-8071-1451-0}}
* Perman, Michael, and Amy Murrell Taylor, eds. ''Major Problems in the Civil War and Reconstruction: Documents and Essays'' (3rd ed. 2010) {{ISBN|978-0618875207}}
* Remini, Robert V. ''Andrew Jackson and the Course of American Freedom, 1822–1832, vol. 2'' (1981) {{ISBN|0-06-014844-6}}
* Stampp, Kenneth, ed. ''The Causes of the Civil War'' (3rd ed. 1992), primary and secondary sources.
* Varon, Elizabeth R. ''Disunion: The Coming of the American Civil War, 1789–1859'' (2008) {{ISBN|978-0-8078-3232-5}}
* Wakelyn, Jon L., ed. ''Southern Pamphlets on Secession, November 1860 – April 1861'' (1996)
* [[Sean Wilentz|Wilentz, Sean]]. ''The Rise of American Democracy: Jefferson to Lincoln'' (2005) {{ISBN|0-393-05820-4}}

==Further reading==
===Primary sources===
* {{citation
|title=Primary Sources: Slavery as the Cause of the Civil War
|date=January 22, 2019
|first=Chris
|last=Mackowski
|journal=[[Emerging Civil War]]
|accessdate=September 15, 2021
|url=https://emergingcivilwar.com/2019/01/22/primary-sources-slavery-as-the-cause-of-the-civil-war/
|archive-date=January 20, 2021
|archive-url=https://web.archive.org/web/20210120013621/https://emergingcivilwar.com/2019/01/22/primary-sources-slavery-as-the-cause-of-the-civil-war/
|url-status=live}}
* [http://www.civilwar.com/ CivilWar.com], many source materials, including states' secession declarations
* [http://civilwarcauses.org/ Causes of the Civil War], collection of primary documents
* [https://web.archive.org/web/20150213033216/http://civilwarcauses.org/reasons.htm Declarations of Causes of Seceding States]
* [https://web.archive.org/web/20051201024514/http://civilwartalk.com/cwt_alt/resources/documents/cornerstone_addy.htm Alexander H. Stephens' Cornerstone Address]

===Historiography===
* Ayers, Edward L. ''What Caused the Civil War? Reflections on the South and Southern History'' (2005). 222 pp.
* [[Howard K. Beale|Beale, Howard K.]], "What Historians Have Said About the Causes of the Civil War", ''Social Science Research Bulletin'' 54, 1946.
* [[Gabor Boritt|Boritt, Gabor S.]], ed. ''Why the Civil War Came'' (1996)
* Childers, Christopher. "Interpreting Popular Sovereignty: A Historiographical Essay", ''Civil War History'' Volume 57, Number 1, March 2011 pp.&nbsp;48–70 [http://muse.jhu.edu/journals/civil_war_history/v057/57.1.childers.html in Project MUSE]
* Crofts, Daniel. ''Reluctant Confederates: Upper South Unionists in the Secession Crisis'' (1989), pp.&nbsp;353–382, 457–480
* Etcheson, Nicole. "The Origins of the Civil War", ''History Compass'' 2005 #3 (North America)
* Foner, Eric. "The Causes of the American Civil War: Recent Interpretations and New Directions". In ''Beyond the Civil War Synthesis: Political Essays of the Civil War Era'', edited by Robert P. Swierenga, 1975.
* Foner, Eric et al. "Talking Civil War History: A Conversation with Eric Foner and James McPherson," ''Australasian Journal of American Studies'' (2011) 30#2 pp.&nbsp;1–32 [https://www.jstor.org/stable/23264085 in JSTOR]
* Grow, Matthew. "The shadow of the civil war: A historiography of civil war memory." ''American Nineteenth Century History'' 4.2 (2003): 77–103.
* Kornblith, Gary J., "Rethinking the Coming of the Civil War: A Counterfactual Exercise". ''Journal of American History'' 90.1 (2003): detailed historiography; [https://web.archive.org/web/20151114003517/http://jah.oxfordjournals.org/content/90/1/76.short online version]
* Pressly, Thomas. ''Americans Interpret Their Civil War'' (1954), old survey that sorts historians into schools of interpretation; [https://archive.org/details/americansinterpr00pres online]
* SenGupta, Gunja. "Bleeding Kansas: A Review Essay", ''Kansas History '' 24 (Winter 2001/2002): 318–341. [http://www.kshs.org/publicat/history/2001winter_sengupta.pdf online]
* Smith, Stacey L. "Beyond North and South: Putting the West in the Civil War and Reconstruction", ''Journal of the Civil War Era'' (Dec 2016) 6#4 pp.&nbsp;566–591. {{doi|10.1353/cwe.2016.0073}} [http://muse.jhu.edu/article/635054 excerpt]
* Towers, Frank. "Partisans, New History, and Modernization: The Historiography of the Civil War's Causes, 1861–2011." ''The Journal of the Civil War Era'' (2011) 1#2 pp. 237–264.
* Tulloch, Hugh. ''The Debate on the American Civil War Era'' (Issues in Historiography) (2000)
* Woods, Michael E., "What Twenty-First-Century Historians Have Said about the Causes of Disunion: A Civil War Sesquicentennial Review of the Recent Literature", ''Journal of American History'' (2012) 99#2 pp.&nbsp;415–439. [https://web.archive.org/web/20151031010455/http://jah.oxfordjournals.org/content/99/2/415.full online]
* Woodward, Colin Edward. ''Marching Masters: Slavery, Race, and the Confederate Army during the Civil War''. University of Virginia Press, 2014. Introduction pp.&nbsp;1–10
* [[Steven E. Woodworth|Woodworth, Steven E.]] ed. ''The American Civil War: A Handbook of Literature and Research'' (1996), 750 pages of historiography; see part IV on Causation.

==="Needless war" school===
* Bonner, Thomas N. "Civil War Historians and the 'Needless War' Doctrine." ''Journal of the History of Ideas'' (1956): 193–216. [https://www.jstor.org/stable/2707742 in JSTOR]
* Childers, Christopher. "Interpreting Popular Sovereignty: A Historiographical Essay." ''Civil War History'' (2011) 57#1 pp.&nbsp;48–70. [http://muse.jhu.edu/journals/civil_war_history/v057/57.1.childers.html online]
* Craven, Avery, ''The Repressible Conflict'', 1830–61 (1939)
** ''The Coming of the Civil War'' (1942)
** "The Coming of the War Between the States", ''Journal of Southern History'' 2 (August 1936): 30–63; [https://www.jstor.org/pss/2191911 in JSTOR]
* Donald, David. "An Excess of Democracy: The Civil War and the Social Process", in David Donald, ''Lincoln Reconsidered: Essays on the Civil War Era'', 2nd ed. (New York: Alfred A. Knopf, 1966), 209–235.
* Goldfield, David. ''America Aflame: How the Civil War Created a Nation'' (2011), New York: Bloomsbury Press.
* Holt, Michael F. ''The Political Crisis of the 1850s'' (1978) emphasis on political parties and voters
* Pressly, Thomas J. "The Repressible Conflict", chapter 7 of ''Americans Interpret Their Civil War'' (Princeton: Princeton University Press, 1954); [https://archive.org/details/americansinterpr00pres online]
* Ramsdell, Charles W. "The Natural Limits of Slavery Expansion", ''Mississippi Valley Historical Review'', 16 (September 1929), 151–171, [https://www.jstor.org/pss/30235318 in JSTOR]; says slavery had almost reached its outer limits of growth by 1860, so war was unnecessary to stop further growth. [https://web.archive.org/web/20080605153248/http://edweb.tusd.k12.az.us/uhs/website/Courses/APUSH/1st%20Sem/Articles%20Semester%201/Artiles%20Semester%201/Ramsdell.htm online version without footnotes]
* Randall, James G. "The Blundering Generation", ''Mississippi Valley Historical Review'' 27 (June 1940): 3–28 [https://www.jstor.org/pss/1896569 in JSTOR]
* Randall, James G. ''The Civil War and Reconstruction''. (1937), survey and statement of "needless war" interpretation

===Economic causation and modernization===
* [[Charles A. Beard|Beard, Charles]], and Mary Beard. ''The Rise of American Civilization.'' Two volumes (1927)
* [[Richard Hofstadter|Hofstadter, Richard]]. "The Tariff Issue on the Eve of the Civil War," ''American Historical Review'' (1938) 44#1 pp.&nbsp;50–55. [https://www.jstor.org/stable/1840850 in JSTOR]
* Luraghi, Raimondo, "The Civil War and the Modernization of American Society: Social Structure and Industrial Revolution in the Old South Before and During the War", ''Civil War History'' XVIII (September 1972), in JSTOR
* McPherson, James M. ''Ordeal by Fire: the Civil War and Reconstruction'' (1982), uses modernization interpretation
* Moore, Barrington. ''Social Origins of Dictatorship and Democracy'' (1966), modernization interpretation
* [[Mark Thornton|Thornton, Mark]]; Ekelund, Robert B. ''[https://www.amazon.com/Tariffs-Blockades-Inflation-Economics-American/dp/0842029613 Tariffs, Blockades, and Inflation: The Economics of the Civil War]'' (2004) {{ISBN|978-0842029612}}

===Nationalism and culture===
* Crofts, Daniel. ''Reluctant Confederates: Upper South Unionists in the Secession Crisis'' (1989)
* [[Richard N. Current|Current, Richard N.]] ''Lincoln and the First Shot'' (1963)
* [[Allan Nevins|Nevins, Allan]], author of most detailed history
** ''Ordeal of the Union'' 2 vols. (1947) covers 1850–57
** ''The Emergence of Lincoln'', 2 vols. (1950) covers 1857–61; does not take strong position on causation
* Olsen, Christopher J. ''Political Culture and Secession in Mississippi: Masculinity, Honor, and the Antiparty Tradition, 1830–1860'' (2000), cultural interpretation
* [[David M. Potter|Potter, David M.]], completed and edited by [[Don E. Fehrenbacher]]. ''The Impending Crisis: America Before the Civil War: 1848–1861'' (1976), Pulitzer Prize-winning history emphasizing rise of Southern nationalism
* Potter, David M. ''Lincoln and His Party in the Secession Crisis'' (1942)

===Slavery as cause===
* Ashworth, John
** ''Slavery, Capitalism, and Politics in the Antebellum Republic'' (1995)
** "Free labor, wage labor, and the slave power: Republicanism and the Republican party in the 1850s", in Melvyn Stokes and Stephen Conway (eds.), ''The Market Revolution in America: Social, Political and Religious Expressions, 1800–1880'', pp.&nbsp;128–146. (1996)

*[[David Herbert Donald|Donald, David Herbert]], Jean Harvey Baker, and Michael F. Holt. ''The Civil War and Reconstruction'' (2001) 780pp survey
* [[Michael Fellman|Fellman, Michael]], Leslie J. Gordon, [[Daniel E. Sutherland]]. ''This Terrible War: The Civil War and its Aftermath'' (3rd ed., 2014) 432pp survey
* [[Eric Foner|Foner, Eric]]
** ''Free Soil, Free Labor, Free Men: The Ideology of the Republican Party before the Civil War'' (1970, 1995), stress on ideology
** ''Politics and Ideology in the Age of the Civil War.'' New York: Oxford University Press (1981)
* [[William W. Freehling|Freehling, William W.]] ''The Road to Disunion: Secessionists at Bay, 1776–1854'' (1991), emphasis on slavery
* [[William Gienapp|Gienapp, William]]. ''The Origins of the Republican Party, 1852–1856'' (1987)
* [[Chandra Manning|Manning, Chandra]]. ''What This Cruel War Was Over: Soldiers, Slavery, and the Civil War''. New York: Vintage Books (2007)
* {{cite news
|first=Byron
|last=McCauley
|title=The Confederacy was about preserving slavery. The proof? It's on the money
|date=April 5, 2018
|url=https://www.cincinnati.com/story/news/2018/04/05/confederacy-preserving-slavery-proof-its-money/489694002/
|newspaper=[[The Cincinnati Enquirer]]
|access-date=April 15, 2018}}
* Morrison, Michael. ''Slavery and the American West: The Eclipse of Manifest Destiny and the Coming of the Civil War'' (1997)
* Morrow, Ralph E. "The Proslavery Argument Revisited", ''The Mississippi Valley Historical Review'', Vol. 48, No. 1 (June 1961), pp.&nbsp;79–94. [https://www.jstor.org/stable/1902405 in JSTOR] (Maintains that antebellum pro-slavery writing was not intended to, or not solely intended to, convince Northerners, but was intended to reduce the guilt felt by many in slave states)
* [[James Oakes (historian)|Oakes, James]].
** ''Freedom National: The Destruction of Slavery in the United States, 1861–1865'' (New York: W. W. Norton and Co., 2013) [https://www.fedbar.org/wp-content/uploads/2013/10/bookrev-octnov13-pdf-1.pdf Review]
** ''The Scorpion's Sting: Antislavery and the Coming of the Civil War'' (New York: W. W. Norton and Co., 2014)
** ''The Crooked Path to Abolition: Abraham Lincoln and the Antislavery Constitution'' (New York: W. W. Norton and Co., 2021)
* Paulus, Carl Lawrence. ''The Slaveholding Crisis: Fear of Insurrection and the Coming of the Civil War'' (LSU Press, 2017)
* [[James Ford Rhodes|Rhodes, James Ford]]. ''History of the United States from the Compromise of 1850 to the McKinley–Bryan Campaign of 1896'', v. 1. 1850-1854, v. 2. 1854-1860. [https://catalog.loc.gov/vwebv/search?searchArg=History+of+the+United+States+from+the+Compromise+of+1850+to+the+McKinley%E2%80%93Bryan+Campaign+of+1896&searchCode=GKEY%5E*&searchType=0&recCount=25&sk=en_US Port Washington, N.Y., Kennikat Press] [1967, c1892-1919]
* [[Arthur Schlesinger Jr.|Schlesinger, Arthur Jr.]] "The Causes of the Civil War" (1949), reprinted in his ''The Politics of Hope'' (1963); reintroduced new emphasis on slavery
* [[Kenneth M. Stampp|Stampp, Kenneth M.]]
** ''America in 1857: A Nation on the Brink'' (1990)
** ''And the War Came: The North and the Secession Crisis, 1860–1861'' (1950)

==External links==
{{Wikiquote|American Civil War}}
* [https://web.archive.org/web/20150801072445/http://tigger.uic.edu/~rjensen/civwar.htm Jensen's Guide to WWW Resources on Civil War and Reconstruction] 
* [http://www.tulane.edu/~sumter/ Tulane course – article on Fort Sumter] {{Webarchive|url=https://web.archive.org/web/20201212074102/http://www.tulane.edu/~sumter/ |date=December 12, 2020 }}
* [https://www.gilderlehrman.org/site-search?keys=%22civil+war%22&f%5B0%5D=content_type_or_other%3AHistory+Now%3A+The+Journal The Gilder Lehrman Institute of American History articles on Civil War]
* [https://web.archive.org/web/20051103073639/http://www.adena.com/adena/usa/cw/cw223.htm An entry from Alexander Stephens' diary, dated 1866, reflecting on the origins of the Civil War]

{{American Civil War |expanded=Origins}}
{{History of slavery in the United States}}
{{Military historiography}}
{{Authority control}}

[[Category:Origins of the American Civil War| ]]
[[Category:Causes of wars|American Civil War, Origins of the]]
[[Category:Politics of the American Civil War]]
[[Category:Pre-emancipation African-American history]]