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{{Short description|Ancient Greek historian and politician of the 2nd century BC}}
{{Other uses}}
{{Use Oxford spelling|date = June 2025}}
{{Infobox philosopher
| name               = Polybius
| image              = Stele des Polybios.jpg
| image_upright      = 
| alt                = Grey slab
| caption            = The [[stele]] of [[Cleitor|Kleitor]] depicting Polybius, [[Hellenistic art]], 2nd century BC, [[Museum of Roman Civilization]]<ref>John Ma. (2013). ''[https://books.google.com/books?id=u3LfaRlHLfwC&dq=Polybios+Stele+Kleitor&pg=PA282 Statues and Cities: Honorific Portraits and Civic Identity in the Hellenistic World]''. Oxford: Oxford University Press. {{ISBN|978-0-19-966891-5}}, pp 281-282.</ref>
| native_name        = 
| native_name_lang   = 
| birth_date         = {{circa|200 BC}}
| birth_place        = [[Megalopolis, Greece|Megalopolis]], [[Arcadia (region)|Arcadia]]
| death_date         = {{circa|118 BC}} (aged approx. 82)
| death_place        = [[Roman Greece]]
| death_cause        = 
| resting_place      = 
| resting_place_coordinates = <!-- {{coord|LAT|LONG|type:landmark|display=inline}} -->
| nationality        = Greek
| citizenship        = 
| education          = 
| occupation         = Historian
| years_active       = 
| notable_works      = ''[[The Histories (Polybius)|The Histories]]'' (events of the [[Roman Republic]], 220–146 BC)
| module             = 
| main_interests     = [[History]], [[philosophy of history]]
| notable_ideas      = [[Anacyclosis]]
}}

'''Polybius''' ({{IPAc-en|p|ə|ˈ|l|ɪ|b|i|ə|s}}; {{langx|grc|Πολύβιος}}, {{Transliteration|grc|Polýbios}}; {{circa|200|118&nbsp;BC}}) was an [[Ancient Greece|ancient Greek]] historian of the middle [[Hellenistic period]]. He is noted for his ''[[Histories (Polybius)|Histories]]'', a [[Universal history (genre)|universal history]] documenting the [[rise of Rome]] in the [[Mediterranean Sea|Mediterranean]] in the third and second centuries BC. It covers the period 264–146, recording in detail events in Italy, Iberia, Greece, Macedonia, Syria, Egypt and Africa, and documents the [[Punic Wars]] and [[Macedonian Wars]] among many others.

Polybius's ''Histories'' is important not only for being the only Hellenistic historical work to survive in any substantial form, but also for its analysis of constitutional change and the mixed constitution. Polybius's discussion of the [[separation of powers]] in government, of checks and balances to limit power, and his introduction of "the people", all influenced [[Montesquieu]]'s ''[[The Spirit of the Laws]]'', [[John Locke]]'s ''[[Two Treatises of Government]]'', and the framers of the [[United States Constitution]].<ref>{{Cite web|url=http://mlloyd.org/mdl-indx/polybius///polybius.htm#note12|title=Polybius and the Founding Fathers: The separation of powers}}</ref>

Polybius was a close friend and mentor to the Roman politician and general [[Scipio Aemilianus]] (also called Scipio Africanus the Younger), and had a lasting influence on his decision-making and life.

==Early life==
Polybius was born around 200 BC in [[Megalopolis, Greece|Megalopolis]], [[Arcadia (region)|Arcadia]],<ref name=":0">{{Cite book |title=Philip V of Macedon |last=Walbank| first=F. W.|date=2014| publisher=Cambridge University Press| isbn=9781107630604|location=New York|pages=278}}</ref> when it was an active member of the [[Achaean League]]. The town was revived, along with other Achaean states, a century before he was born.<ref>{{Cite book| last= Marincola |first= John| title=On Writing History from Herodotus to Herodian|date=2017|publisher=Penguin UK|isbn=9780141393582|page=}}</ref> His father, [[Lycortas]], was a prominent, land-owning politician and member of the governing class who became ''[[strategos]]'' (commanding general) of the Achaean League.<ref>{{Cite web|url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0144:book=39:chapter=35&highlight=lycortas|title=Titus Livius (Livy), The History of Rome, Book 39, chapter 35|website=www.perseus.tufts.edu|access-date=2016-11-02}}</ref> Consequently, Polybius was able to observe first-hand during his first 30 years the political and military affairs of Megalopolis, gaining experience as a [[Politician|statesman]].<ref name=":0" /> In his early years, he accompanied his father while travelling as [[ambassador]].<ref name=":1">{{Cite book |title=Ancient Historians: A Student Handbook |last=Sorek |first=Susan|date=2012 |publisher=Continuum |isbn=9781441111357 |pages=76}}</ref> He developed interests in equestrianism and hunting, diversions that later commended him to his Roman captors.

In 182 he was given the honour of carrying the funeral urn of [[Philopoemen]], one of the most eminent Achaean politicians of his generation. In 170 or 169 Polybius was elected [[hipparchus (cavalry officer)|''hipparchus'']] (cavalry officer) and was due to assist Rome militarily during the [[Third Macedonian War]], although this never came about.<ref name=":1" /> This office was the second-highest position of the Achaean League and often presaged election to the annual ''[[strategia]]'' (chief generalship). Polybius's political career was cut short in 168, however; as a consequence of the final defeat of the [[Antigonid dynasty]] in the [[Third Macedonian War]], 1,000 Achaeans (including Polybius) with suspect allegiances were interned in Rome and its surrounding area.

==Personal experiences==
Polybius's father, Lycortas, was a prominent advocate of neutrality during the Roman war against [[Perseus of Macedon|Perseus]] of [[Macedon]] in 171–168. Lycortas attracted the suspicion of the Romans, and Polybius subsequently was one of the 1,000 [[Achaea (ancient region)|Achaean]] nobles who were transported to Rome as hostages in 167, and was detained there for 17 years. In Rome, by virtue of his high culture, Polybius was admitted to the most distinguished houses, in particular to that of [[Lucius Aemilius Paullus Macedonicus]], the conqueror in the [[Third Macedonian War]], who entrusted Polybius with the education of his sons, Fabius and [[Scipio Aemilianus]] (who had been adopted by the eldest son of [[Scipio Africanus]]). Polybius remained on cordial terms with his former pupil Scipio Aemilianus and was among the members of the [[Scipionic Circle]].

When Scipio defeated the [[Carthaginians]] in the [[Third Punic War]], Polybius remained his counsellor. The Achaean hostages were released in 150, and Polybius was granted leave to return home, but the next year he went on campaign with Scipio Aemilianus to Africa, and was present at the [[Siege of Carthage (Third Punic War)|Sack of Carthage in 146]], which he later described. Following the destruction of Carthage, Polybius likely journeyed along the Atlantic coast of Africa, as well as Spain.

After the [[Battle of Corinth (146 BC)|destruction of Corinth]] in the same year, Polybius returned to Greece, making use of his Roman connections to lighten the conditions there. Polybius was charged with the difficult task of organizing the new form of government in the Greek cities, and in this office he gained great recognition.

==At Rome==
In the succeeding years, Polybius resided in [[Rome]], completing his historical work while occasionally undertaking long journeys through the [[Mediterranean]] countries in the furtherance of his history, in particular with the aim of obtaining firsthand knowledge of historical sites. He apparently interviewed veterans to clarify details of the events he was recording and was similarly given access to archival material. Little is known of Polybius's later life; he most likely accompanied Scipio to Spain, acting as his military advisor during the [[Numantine War]].

He later wrote about this war in a lost [[monograph]]. Polybius probably returned to Greece later in his life, as evidenced by the many existent inscriptions and statues of him there. The last event mentioned in his ''Histories'' seems to be the construction of the [[Via Domitia]] in [[southern France]] in 118 BC, which suggests the writings of [[Lucian#Pseudo-Lucian|Pseudo-Lucian]] may have some grounding in fact when they state, "[Polybius] fell from his horse while riding up from the country, fell ill as a result and died at the age of eighty-two".

==''The Histories''==
{{Main|The Histories (Polybius)}}

The ''Histories'' is a [[Universal history (genre)|universal history]] which describes and explains the rise of the [[Roman Republic]] as a global power in the [[Classical antiquity|ancient Mediterranean world]]. The work documents in detail political and military affairs across the Hellenistic Mediterranean between 264 and 146 BC, and in its later books includes eyewitness accounts of the [[Siege of Carthage (Third Punic War)|sack of Carthage]] and [[Battle of Corinth (146 BC)|Corinth]] in 146 BC, and the Roman annexation of mainland Greece after the [[Achaean War]].<ref>Polybius (~150 B.C.). The Rise of the Roman Republic. Translated by Ian Scott-Kilvert (1979). Penguin Books. London, England.</ref>

While Polybius's ''Histories'' covers the period from 264 BC to 146 BC, it focuses mainly on the years 221 to 146, detailing Rome's rise to supremacy in the Mediterranean by overcoming their geopolitical rivals: [[ancient Carthage]], Macedonia, and the [[Seleucid Empire]]. Books I-II are ''The Histories''{{'}} introduction, describing events in Italy and Greece before 221/0 BC, including the [[First Punic War]], Rome's wars with the Gauls, the rise of the [[Achaean League]] (Polybius's own constitution), and the re-establishment of Macedonian power in Greece under [[Antigonus III Doson]] and [[Philip V of Macedon]].<ref name="Nicholson 2023">{{cite book |title=Philip V of Macedon in Polybius' Histories |last= Nicholson|first= Emma|year= 2023 |publisher= Oxford University Press |isbn= 9780192866769}}, pp. 3, 34-58, 107-118</ref> Books III-XXXIX describe in detail political and military affairs in the leading Mediterranean states, including affairs in [[ancient Rome]] and ancient Carthage, [[ancient Greece]] and [[ancient Macedonia]], and the Seleucid Empire and Egypt, explaining their increasing "''συμπλοκή"'' (symplokē) or interconnectedness and how they each contributed to Rome's rise to dominance. Only books I-V survive in full; the rest are in varying states of fragmentation.

Three discursive books on politics, historiography and geography break up the historical narrative:

*In Book VI Polybius outlines his famous theory of the "cycle of constitutions" (the ''anacyclosis'') and describes the political, military, and moral institutions that allowed the Romans to defeat their rivals in the Mediterranean. Polybius concludes that the Romans are the pre-eminent power because they currently have customs and institutions which balance and check the negative impulses of their people and promote a deep desire for noble acts, a love of virtue, piety towards parents and elders, and a fear of the gods (''deisidaimonia'').
*In Book XII Polybius discusses how to write history and criticises the historical accounts of numerous previous historians, including [[Timaeus (historian)|Timaeus]] for his account of the same period of history. He asserts Timaeus's point of view is inaccurate, invalid, and biased in favour of Rome. [[Christian Habicht (historian)|Christian Habicht]] considered his criticism of Timaeus to be spiteful and biased,<ref>''Athens from Alexander to Antony'' by Christian Habicht, 1997, p. 119</ref> However, Polybius's ''Histories'' is also useful in analyzing the different Hellenistic versions of history and of use as a more credible illustration of events during the [[Hellenistic period]].
*Book XXXIV discusses geographical matters and the importance of geography in a historical account and in a statesman's education. This book is almost entirely lost.

===Polybius's sources===
Polybius holds that historians should, if possible, only chronicle events whose participants the historian was able to interview,<ref>Farrington, Scott Thomas (February 2015). [https://scholar.dickinson.edu/cgi/viewcontent.cgi?article=1130&context=faculty_publications "A Likely Story: Rhetoric and the Determination of Truth in Polybius' Histories."] ''Histos'' 9: 29-66. (p. 40): ''"Polybius begins his history proper with the 140th Olympiad because accounts of the remote past amount to hearsay and do not allow for safe judgements'' (διαλήψεις) ''and assertions'' (ἀποφάσεις) ''regarding the course of events.... he can relate events he saw himself, or he can use the testimony of eyewitnesses. ([footnote 34:]'' Pol. ''4.2.2:'' ἐξ οὗ συμβαίνει τοῖς μὲν αὐτοὺς ἡμᾶς παραγεγονέναι, τὰ δὲ παρὰ τῶν ἑωρακότων ἀκηκοέναι.'')"'' [archive URLs: [https://web.archive.org/web/20201022204148/https://scholar.dickinson.edu/cgi/viewcontent.cgi?article=1130&context=faculty_publications 1] (full text), [https://web.archive.org/web/20201212104900/https://scholar.dickinson.edu/faculty_publications/96/ 2] (abstract & journal citation)]</ref> and was among the first to champion the notion of [[Journalism ethics and standards|factual integrity]] in historical writing. He championed this by interviewing participants of the [[Second Punic War]] for the third volume of ''Histories,'' including some who knew [[Hannibal]], a major Carthaginian participant.<ref>{{Citation |last=Champion |first=Craige B. |title=Polybius and the Punic Wars |date=2011 |work=A Companion to the Punic Wars |pages=95–110 |url=https://onlinelibrary.wiley.com/doi/abs/10.1002/9781444393712.ch6 |access-date=2025-10-25 |publisher=John Wiley & Sons, Ltd |language=en |doi=10.1002/9781444393712.ch6 |isbn=978-1-4443-9371-2|url-access=subscription }}</ref> In the twelfth volume of his ''Histories'' he defines the historian's job as the analysis of documentation, the review of relevant geographical information, and political experience. In Polybius's time, the profession of a historian required political experience (which aided in differentiating between fact and fiction) and familiarity with the geography surrounding one's subject matter to supply an accurate version of events.

Polybius himself exemplified these principles as he was well-travelled and possessed political and military experience. He consulted and used written sources providing essential material for the period between 264 and 220, including, for instance, treaty documents between Rome and Carthage in the [[First Punic War]], the history of the third-century Greek historian [[Phylarchus]], and the ''Memoirs'' of the Achaean politician, [[Aratus of Sicyon]]. When addressing events after 220, he continued to examine treaty documents, the writings of Greek and Roman historians and statesmen, eye-witness accounts and Macedonian court informants to acquire credible sources of information, although rarely did he name his sources.  

==As historian==
Polybius wrote several works, most of which are lost. His earliest work was a biography of the Greek statesman [[Philopoemen]]; this work was later used as a source by [[Plutarch]] when composing his ''[[Parallel Lives]]''; however, the original Polybian text is lost. In addition, Polybius wrote an extensive treatise entitled ''Tactics'', which may have detailed Roman and Greek [[military tactics]]. Small parts of this work may survive in his major ''Histories'', but the work itself is lost as well. Another missing work was a historical monograph on the events of the [[Numantine War]]. The largest Polybian work was his ''Histories'', of which only the first five books survive entirely intact, along with a large portion of the sixth book and fragments of the rest. Along with [[Cato the Elder]] (234–149 BC), he can be considered one of the founding fathers of [[Roman historiography]].

[[Livy]] made reference to and uses Polybius's ''Histories'' as source material in his own narrative. Polybius was among the first historians to attempt to present history as a sequence of causes and effects, based upon a careful examination and criticism of tradition. He narrated his history based upon first-hand knowledge. The ''Histories'' capture the varied elements of the story of human behaviour: [[nationalism]], [[xenophobia]], duplicitous politics, war, brutality, loyalty, valour, intelligence, reason and resourcefulness.

Aside from the narrative of the historical events, Polybius also included three books of digressions. Book 34 was entirely devoted to questions of geography and included some trenchant criticisms of [[Eratosthenes]], whom he accused of passing on popular preconceptions or ''laodogmatika''. Book 12 was a disquisition on the writing of history, citing extensive passages of lost historians, such as [[Callisthenes]] and [[Theopompus]]. Most influential was Book 6, which describes Roman political, military, and moral institutions, which he considered key to Rome's success; it presented Rome as having a mixed constitution in which [[monarchical]], [[aristocratic]] and popular elements existed in stable equilibrium. This enabled Rome to escape, for the time being, the cycle of eternal revolutions (''[[anacyclosis]]'') faced by those with singular constitutions (i.e. many of the Greeks and the Macedonians). While Polybius was not the first to advance this view, his account provides the most cogent illustration of the ideal for later political theorists.

A key theme of the ''Histories'' is good leadership, and Polybius dedicates considerable time to outlining how the good statesman should be rational, knowledgeable, virtuous and composed. The character of the Polybian statesman is exemplified in that of [[Philip II of Macedon]], who Polybius believed exhibited both excellent military prowess and skill, as well as proficient ability in diplomacy and moral leadership.<ref>Plb.5.9-12 and {{cite book |title=Philip V of Macedon in Polybius' Histories |last= Nicholson|first= Emma|year= 2023 |publisher= Oxford University Press |isbn= 9780192866769}}, pp. 291-295</ref> His beliefs about Philip's character led Polybius to reject the historian [[Theopompus]]' description of Philip's private, drunken debauchery. For Polybius, it was inconceivable that such an able and effective statesman could have had an immoral and unrestrained private life as described by Theopompus.<ref>Plb. 8.9.3-4</ref> The consequences of bad leadership are also highlighted throughout the ''Histories''. Polybius saw, for instance, the character and leadership of the later [[Philip V of Macedon]], one of Rome's leading adversaries in the Greek East, as the opposite of his earlier exemplary namesake. Philip V became increasingly tyrannical, irrational and impious following brilliant military and political success in his youth; this resulted, Polybius believed, in his abandonment by his Greek allies and his eventual defeat by Rome in 197 BC.<ref name="Nicholson 2023a">{{cite book |title=Philip V of Macedon in Polybius' Histories |last= Nicholson|first= Emma|year= 2023 |publisher= Oxford University Press |isbn= 9780192866769}}, pp. 59-100, 184-227</ref>

Other important themes running throughout the ''Histories'' include the role of fortune in the affairs of nations, how a leader might weather bravely these changes of fortune with dignity,<ref>Plb. 1.1.1-2</ref> the educational value of history and how it should demonstrate cause and effect (or [[Apodicticity|''apodeiktike'']]) to provide lessons for statesmen, and that historians should be "men of action" to gain appropriate experience so as to understand how political and military affairs are likely to pan out ([[Pragmatics|''pragmatikoi'']]).

Polybius is considered by some to be the successor of [[Thucydides]] in terms of [[objectivity (science)|objectivity]] and critical [[reasoning]], and the forefather of scholarly, painstaking historical research in the modern scientific sense. According to this view, his work sets forth the course of history's occurrences with clearness, penetration, sound judgement, and, among the circumstances affecting the outcomes, he lays special emphasis on geographical conditions. Modern historians are especially impressed with the manner in which Polybius used his sources, particularly documentary evidence, as well as his citation and quotation of sources. Furthermore, there is some admiration for Polybius's meditation on the nature of historiography in Book 12. His work belongs, therefore, amongst the greatest productions of ancient historical writing. The writer of ''[[The Oxford Companion to Classical Literature]]'' (1937) praises him for his "earnest devotion to truth" and his systematic pursuit of causation.

As a hostage in Rome, then as client to the Scipios, and after 146 a collaborator with Roman rule, Polybius was probably in no position to freely express any negative opinions of Rome. The historian [[Peter Green (historian)|Peter Green]] advises that Polybius was chronicling Roman history for a Greek audience, to justify what he believed to be the inevitability of Roman rule. Nonetheless, Green considers Polybius's ''Histories'' the best source for the era they cover. For [[Ronald J. Mellor]], Polybius was a loyal partisan of [[Scipio Aemilianus|Scipio]], intent on vilifying his patron's opponents.<ref>[[Ronald J. Mellor]], ''The Historians of Ancient Rome''</ref> [[Adrian Goldsworthy]], while using Polybius as a source for Scipio's generalship, notes Polybius's underlying and overt bias in Scipio's favour. H. Ormerod considers that Polybius cannot be regarded as an 'altogether unprejudiced witness' in relation to his ''bêtes noires''; the Aetolians, the Carthaginians and the Cretans.<ref>H. Ormerod, ''Piracy in the Ancient World'', p.141</ref> Other historians perceive considerable negative bias in Polybius's account of [[History of Crete|Crete]];<ref>Mogens Herman Hansen 1995, ''Sources for the Ancient Greek City-State: Symposium'', August 24–27, 1994, Kgl. Danske, Videnskabernes Selskab, 376 pages {{ISBN|87-7304-267-6}}</ref> on the other hand, Hansen notes that the same work, along with passages from [[Strabo]] and [[Scylax of Caryanda]],<ref>[[Robert Pashley]], ''Travels in Crete'', 1837, J. Murray</ref> proved a reliable guide in the eventual rediscovery of the lost city of [[Kydonia]].<ref>{{cite web|url=http://www.themodernantiquarian.com/site/10881/cydonia.html#fieldnotes |title=C. Michael Hogan, ''Cydonia'', Modern Antiquarian, January 23, 2008 |publisher=Themodernantiquarian.com |access-date=2010-02-28}}</ref>

==Cryptography==
Polybius was responsible for a useful tool in [[telegraphy]] that allowed letters to be easily signaled using a [[Numeral system|numerical system]], called "the [[Polybius square]]," mentioned in [https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Polybius/10*.html#45.6 Hist. X.45.6&nbsp;ff.].<ref>{{cite book|url=https://oxfordre.com/classics/display/10.1093/acrefore/9780199381135.001.0001/acrefore-9780199381135-e-5172 |last1=Nicholson |first1=Emma |editor-first1=Emma |editor-last1=Nicholson |title=Polybius (1), Greek historian, Oxford Classical Dictionary|chapter=Polybius (1), Greek historian, c. 200–c. 118 BCE |date=7 March 2016 |doi=10.1093/acrefore/9780199381135.013.5172 |isbn=978-0-19-938113-5 |access-date=2023-04-26}}</ref> This idea also lends itself to [[cryptographic]] manipulation and [[steganography]]. Modern implementations of the Polybius square, at least in Western European languages such as English, Spanish, French, German and Italian, generally use the Roman alphabet in which those languages are written. However, Polybius himself was writing in Greek, and would have implemented his cipher square in the Greek alphabet. Both versions are shown here.

{| class="wikitable"
!
! 1 !! 2 !! 3 !! 4 !! 5
|-
! 1
| A || B || C || D || E
|-
! 2
| F || G || H || I/J || K
|-
! 3
| L || M || N || O || P
|-
! 4
| Q || R || S || T || U
|-
! 5
| V || W || X || Y || Z
|}

{| class="wikitable"
!
! 1 !! 2 !! 3 !! 4 !! 5
|-
! 1
| A || B || Γ || Δ || E
|-
! 2
| Z || H || Θ || I || K
|-
! 3
| Λ || M || N || Ξ || O
|-
! 4
| Π || P || Σ || T || Y
|-
! 5
| Φ || X || Ψ || Ω || 
|}

In the Polybius square, letters of the alphabet were arranged left to right, top to bottom in a 5 × 5 square. When used with the 26-letter [[Latin alphabet]] two letters, usually I and J, are combined. When used with the Greek alphabet, which has exactly one fewer letters than there are spaces (or code points) in the square, the final "5,5" code point encodes the spaces in between words. Alternatively, it can denote the end of a sentence or paragraph when writing in continuous script.

Five numbers are then aligned on the outside top of the square, and five numbers on the left side of the square vertically. Usually these numbers were arranged 1 through 5. By cross-referencing the two numbers along the grid of the square, a letter could be deduced.

In the ''Histories'', Polybius specifies how this cypher could be used in fire signals, where long-range messages could be sent by means of torches raised and lowered to signify the column and row of each letter. This was a great leap forward from previous fire signalling, which could send prearranged codes only (such as, 'if we light the fire, it means that the enemy has arrived').

Other writings of scientific interest include detailed discussions of the machines [[Archimedes]] created for the defence of Syracuse against the Romans, where Polybius praises the 'old man' and his engineering in the highest terms, and an analysis of the usefulness of astronomy to generals (both in the ''Histories'').

==Influence==
{{Republicanism sidebar}}
[[File:M. Tullius Cicero, Capitoline Museum, Rome.jpg|thumb|left|Marcus Tullius Cicero]]
Polybius was considered a poor stylist by [[Dionysius of Halicarnassus]], writing of Polybius's history that "no one has the endurance to reach [its] end".<ref>Comp. 4</ref> Nevertheless, clearly he was widely read by Romans and Greeks alike. He is quoted extensively by [[Strabo]] writing in the 1st century BC and [[Athenaeus]] in the 3rd century AD.

His emphasis on explaining causes of events, rather than just recounting events, influenced the historian [[Sempronius Asellio]]. Polybius is mentioned by [[Cicero]] and mined for information by [[Diodorus Siculus]], [[Livy]], [[Plutarch]] and [[Arrian]]. Much of the text that survives today from the later books of ''The Histories'' was preserved in Byzantine anthologies.
[[Image:Charles Montesquieu.jpg|thumb|Montesquieu]]

His works reappeared in the [[Western world]] first in [[Florence]] during the [[Italian Renaissance]]. Polybius gained a following in Italy, and although poor Latin translations hampered proper scholarship on his works, they contributed to the city's historical and political discourse. [[Niccolò Machiavelli]] in his ''[[Discourses on Livy]]'' evinces familiarity with Polybius. Vernacular translations in French, German, Italian and English first appeared during the 16th century.<ref>{{cite book | last = Polybius |author2=Frank W. Walbank |author3=Ian Scott-Kilvert | title = The Rise of the Roman Empire | publisher = [[Penguin Classics]] | year = 1979| isbn = 0-14-044362-2 }}</ref> Consequently, in the late 16th century, Polybius's works found a greater reading audience among the learned public. Study of the correspondence of such men as [[Isaac Casaubon]], [[Jacques Auguste de Thou]], [[William Camden]] and [[Paolo Sarpi]] reveals a growing interest in Polybius's works and thought during the period. Despite the existence of both printed editions in the vernacular and increased scholarly interest, however, Polybius remained a "historian's historian", not much read by the public at large.<ref>{{cite journal
 | last = Burke
 | first = Peter
 | title = A Survey of the Popularity of Ancient Historians, 1450-1700
 | year = 1966
 | journal = History and Theory
 | volume = 5
 | issue = 2
 | doi = 10.2307/2504511
 | publisher = History and Theory, Vol. 5, No. 2
 | jstor=2504511
 | pages = 135–152 [141]}}</ref>

Printings of his work in the [[vernacular]] remained few in number—seven in French, five in English ([[John Dryden]] provided an enthusiastic preface to Sir Henry Sheers' edition of 1693) and five in Italian.<ref>{{cite journal
 | last = Burke
 | first = Peter
 | title = A Survey of the Popularity of Ancient Historians, 1450-1700
 | year = 1966
 | journal = History and Theory
 | volume = 5
 | issue = 2
 | doi = 10.2307/2504511
 | publisher = History and Theory, Vol. 5, No. 2
 | jstor=2504511
 | pages = 135–152 [139]}}</ref>

Polybius's political analysis has influenced republican thinkers from [[Cicero]] to [[Montesquieu]] to the [[Founding Fathers of the United States]].<ref>Marshall Davies Lloyd, [http://mlloyd.org/mdl-indx/polybius/intro.htm ''Polybius and the Founding Fathers: the separation of powers''], Sept. 22, 1998.</ref> [[John Adams]], for example, considered him one of the most important teachers of constitutional theory. Since the [[Age of Enlightenment]], Polybius has in general held appeal to those interested in [[Hellenistic Greece]] and early Republican Rome, while his political and military writings have lost influence in academia. More recently, thorough work on the Greek text of Polybius, and his historical technique, has increased the academic understanding and appreciation of him as a historian.

According to Dawn Finley and Virginia Tufte, he was also a major source for [[Charles Joseph Minard]]'s figurative map of Hannibal's overland journey to Italy during the Second Punic War.<ref>{{cite web|url=http://www.edwardtufte.com/tufte/minard-hannibal |title=Minard's figurative map of Hannibal's war |publisher=Edwardtufte.com |access-date=2010-02-28 |archive-url=https://web.archive.org/web/20240520194119/http://www.edwardtufte.com/tufte/minard-hannibal |archive-date=2024-05-20 |url-status=dead}}</ref>

In his ''Meditations On Hunting'', the Spanish philosopher [[José Ortega y Gasset]] calls Polybius "one of the few great minds that the turbid human species has managed to produce", and says the damage to the ''Histories'' is "without question one of the gravest losses that we have suffered in our Greco-Roman heritage".

The Italian version of his name, Polibio, was used as a male first name—for example, the composer [[Polibio Fumagalli]]—though it never became very common.

The [[University of Pennsylvania]] has an intellectual society, the Polybian Society, which is named in his honour and serves as a non-partisan forum for discussing societal issues and policy.

==Editions and translations==
* Dionysius of Halicarnassus, Usher, S. (ed. and trans.) ''Critical Essays, Volume II.'' [[Harvard University Press]], 1985.
* ''Polybii Historiae'', editionem a [[Karl Wilhelm Dindorf|Ludovico Dindorfi]] curatam, retractavit [[:de:Theodor Büttner-Wobst|Theodorus Büttner-Wobst]], Lipsiae in aedibus B. G. Teubneri, [https://archive.org/details/polybioyistoriai00polyuoft vol. 1], [https://archive.org/details/polybiihistoria00polygoog vol. 2], [https://archive.org/details/polybiihistoria06polygoog vol. 3], [https://archive.org/details/polybiihistoria02polygoog vol. 4], [https://archive.org/details/polybiihistoria04polygoog vol. 5], 1882–1904.
* {{cite book | author=Polybius | translator=Paton, W.R. | title=Polybius: The Histories | language=grc, en, la | series=The Loeb Classical Library | location=London; New York | publisher=William Heinemann; G.P. Putnam's Sone | year=1922–1927}}
** {{cite book | author=Polybius | author-mask=2 | title=Polybius | volume=I | year=1922A | publisher=Harvard University Press | isbn=0-674-99142-7 | url=https://books.google.com/books?id=UaENN3WvxI0C&q=the+histories+polybius}} Loeb Number L128; Books I-II.
** {{cite book | author=Polybius | author-mask=2 | title=Polybius | volume=II | year=1922B | publisher=W. Heinemann | isbn=0-674-99152-4}} Loeb Number L137; Books III-IV.
** {{cite book | author=Polybius | author-mask=2 | title=Polybius | volume=III | year=1923 | publisher=William Heinemann Limited | isbn=0-674-99153-2}} Loeb Number L138; Books V-VIII.
** {{cite book | author=Polybius | author-mask=2 | title=Polybius | volume=IV | year=1925 | publisher=W. Heinemann | isbn=0-674-99175-3}} Loeb Number L159; Books IX-XV.
** {{cite book | author=Polybius | author-mask=2 | title=Polybius | volume=V | year=1926 | publisher=Harvard University Press | isbn=0-674-99176-1}} Loeb Number L160; Books XVI-XXVII.
** {{cite book | author=Polybius | author-mask=2 | title=Polybius | volume=VI | year=1927 | publisher=Harvard University Press | isbn=0-674-99178-8}} Loeb Number L161; Books XXVIII-XXXIX.
* {{cite book | author=Polybius | translator=Paton, W.R. | title=Polybius: The Histories | language=grc, en, la | series=The Loeb Classical Library | location=Chicago | publisher=University of Chicago ([[LacusCurtius]]) | year=2012 | url=https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Polybius/home.html}}
* ''The Histories'' or ''The Rise of the Roman Empire'' by Polybius:
** At [[Perseus Project]]: [https://www.perseus.tufts.edu/cgi-bin/ptext?lookup=Plb.+toc English & Greek version]
* At "[[LacusCurtius]]": [https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Polybius/Introduction*.html Short introduction to the life and work of Polybius]
* [https://archive.org/stream/polybioutoulykor01poly 1670 edition of Polybius's works vol. 1 at the Internet archive]
* [https://archive.org/stream/polybioutoulykor02poly 1670 edition of Polybius's works vol. 2 at the Internet archive]
* Polybius: "''The Rise Of The Roman Empire''", Penguin, 1979.
* [http://www.wdl.org/en/item/4110 "Books 1–5 of History. Ethiopian Story. Book 8: From the Departure of the Divine Marcus"] featuring Book I-V of ''The Histories'', digitized, from the [[World Digital Library]]

==See also==
* [[Anacyclosis]]
* [[Elite theory]]
* [[Historic recurrence]]
* [[Iron law of oligarchy]]
* [[Kyklos]]
* [[Polybius (urban legend)]]
* [[Polybius square]]
* [[Mixed government]]

==References==
{{Reflist|25em}}

==Sources==
===Ancient sources===
* [[Livy]], ''[[History of Rome (Livy)|History of Rome]]'' XXI–XLV.
* [[Pseudo-Lucian]], ''Macrobii''.
* [[Paulus Orosius]], book VII of ''History Against the Pagans''.

===Modern sources===
* Champion, Craige B. (2004) ''Cultural Politics in Polybius's Histories.'' Berkeley: Univ. of California Press.
* Davidson, James: 'Polybius' in Feldherr, Andrew ed. ''The Cambridge Companion to the Roman Historians'' (Cambridge University Press, 2009)
* Derow, Peter S. 1979. "Polybius, Rome, and the East." ''Journal of Roman Studies'' 69:1–15.
* Eckstein, Arthur M. (1995) ''Moral Vision in the Histories of Polybius.'' Berkeley: Univ. of California Press.
* Farrington, Scott Thomas. 2015. "A Likely Story: Rhetoric and the Determination of Truth in Polybius' Histories. ''Histos: The On-Line Journal of Ancient Historiography'' 9: 29–66.
*Gibson, Bruce & Harrison, Thomas (editors): ''Polybius and his World: Essays in Memory of F.W. Walbank'', (Oxford, 2013).
* McGing, Brian C. (2010) ''Polybius: The Histories.'' Oxford Approaches to Classical Literature. Oxford: Oxford Univ. Press.
* [[Arnaldo Momigliano|Momigliano, Arnaldo M.]]: ''Sesto Contributo alla Storia degli Studi Classici e del Mondo Antico'' (Rome, 1980).
** —— Vol. V (1974) "The Historian's Skin", 77–88 (Momigliano Bibliography no. 531)
** —— Vol. VI (1973) "Polibio, Posidonio e l'imperialismo Romano", 89 (Momigliano Bibliography no. 525) (original publication: ''Atti della Accademia delle Scienze di Torino'', 107, 1972–73, 693–707).
* Moore, John M (1965) ''The Manuscript Tradition of Polybius'' (Cambridge University Press).
* Moore, Daniel Walker (2020) ''Polybius: Experience and the Lessons of History'' (Brill, Leiden).
*{{Cite web|title=Polybius (1), Greek historian, c. 200–c. 118 BCE|url=https://oxfordre.com/classics/view/10.1093/acrefore/9780199381135.001.0001/acrefore-9780199381135-e-5172|last=Nicholson|first=Emma |editor-first1=Emma |editor-last1=Nicholson |date=2022|website=Oxford Classical Dictionary|language=en|doi=10.1093/acrefore/9780199381135.013.5172|isbn=9780199381135}}
*{{cite book |last1=Nicholson |first1=Emma |title=Philip V of Macedon in Polybius' Histories: Politics, History, and Fiction |date=2023 |publisher=Oxford University Press |location=Oxford |language=en|doi=10.1093/acrefore/9780199381135.013.5172|isbn=9780199381135}}
* Pausch, Dennis (2014) "Livy Reading Polybius: Adapting Greek Narrative to Roman History." In ''Defining Greek Narrative.'' Edited by Douglas L. Cairns & Ruth Scodel, 279–297. Edinburgh: Edinburgh University Press.
* Sacks, Kenneth S. (1981) ''Polybius on the Writing of History.'' Berkeley: Univ. of California Press.
* Schepens, Guido, and Jan Bollansée, eds. 2005. ''The Shadow of Polybius: Intertextuality as a Research Tool in Greek Historiography.'' Leuven, Belgium: Peeters.
*[[F. W. Walbank|Walbank, Frank W.]]:
** —— ''Philip V of Macedon'', the Hare Prize Essay 1939 (Cambridge University Press, 1940)
** —— ''A Historical Commentary on Polybius'' (Oxford University Press)
*** Vol. I (1957) Commentary on Books I–VI
*** Vol. II (1967) Commentary on Books VII–XVIII
*** Vol. III (1979) Commentary on Books XIX–XL
** —— (1972) ''Polybius'' (University of California Press).
** ___ (2002) ''Polybius, Rome and the Hellenistic World: Essays and Reflections (Cambridge University Press).

==External links==
{{Wikisourcelang|el|Ιστορίαι|Ἱστορίαι}}
{{Library resources box |by=yes |onlinebooks=yes |others=yes |about=yes |label=Polybius
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* {{wikiquote-inline}}
* {{wikisource author-inline}}
* {{Gutenberg author | id=42603}}
* [https://www.perseus.tufts.edu/hopper/searchresults?q=Polybius&redirect=true Works by Polybius] at [[Perseus Digital Library]]
* {{Internet Archive author}}

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