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{{Use mdy dates|date=February 2011}}
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{{BC year in topic|9}}
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Year '''9 BC''' was either a [[common year starting on Wednesday]], [[Common year starting on Thursday|Thursday]] or [[Common year starting on Friday|Friday]] or a [[leap year starting on Thursday]] of the [[Julian calendar]] (the sources differ, see [[Julian calendar#Leap year error|leap year error]] for further information) and a [[leap year starting on Monday]] of the [[Proleptic Julian calendar]]. At the time, it was known as the '''Year of the Consulship of [[Drusus the Elder|Drusus]] and [[Titus Quinctius Crispinus Sulpicianus|Crispinus]]''' (or, less frequently, '''year 745 ''[[Ab urbe condita]]'''''). The denomination 9 BC for this year has been used since the early medieval period, when the [[Anno Domini]] [[calendar era]] became the prevalent method in Europe for naming years.

== Events ==
* [[January 30]] – The {{Lang|la|[[Ara Pacis]]|italic=no}} ("Altar of Augustan Peace"), voted for by the [[Roman Senate|Senate]] four years earlier, is dedicated.<ref>{{Cite book |last=Conlin |first=Diane Atnally |url=https://books.google.com/books?id=RkFdminDxkoC&pg=PA3 |title=The Artists of the Ara Pacis: The Process of Hellenization in Roman Relief Sculpture |date=1997 |publisher=UNC Press Books |isbn=978-0-8078-2343-9 |language=en}}</ref>
* [[Pannonia]] is incorporated into the [[Roman Empire]] as part of [[Illyria]].<ref>[https://www.unrv.com/provinces/pannonia.php Pannonia] — United Nations of Roma Victrix</ref>
* [[Nero Claudius Drusus]], Emperor [[Augustus]]' stepson, begins a campaign against the [[Marcomanni]], but dies soon after, due to a fall from his horse.<ref>{{Cite book |last=Levick |first=Barbara |url=https://books.google.com/books?id=Ev4CkGHgfMUC&dq=Nero+Claudius+Drusus+death&pg=PA11 |title=Claudius |date=1990 |publisher=Yale University Press |isbn=978-0-300-05831-4 |language=en}}</ref>
* [[Livy]] completes compilation of his ''[[Ab Urbe Condita Libri]]'', 142 books covering the history of Rome since its foundation down to 9 BC (approximate date).<ref name="DGRBM Livius">{{cite DGRBM|volume=II|wstitle=Livius|pages=[https://en.wikisource.org/wiki/Page:Dictionary_of_Greek_and_Roman_Biography_and_Mythology_(1870)_-_Volume_2.djvu/804 790]–[https://en.wikisource.org/wiki/Page:Dictionary_of_Greek_and_Roman_Biography_and_Mythology_(1870)_-_Volume_2.djvu/810 796]|first=William|last=Ramsay|author-link=William Ramsay (classical scholar)}}</ref>
* Accession of [[Aretas IV Philopatris]] as [[King of the Nabataeans]] (modern [[Jordan]]).<ref>{{Cite book |last=Healey |first=J. F. |url=https://books.google.com/books?id=hbO9CwAAQBAJ&pg=PA30 |title=The Religion of the Nabataeans: A Conspectus |date=2015 |publisher=BRILL |isbn=978-90-04-30148-1 |language=en}}</ref>

== Births ==
* [[Emperor Ping of Han|Ping]], Chinese emperor of the [[Han dynasty]] (d. [[AD 6]])
* [[Asconius Pedianus|Quintus Asconius Pedianus]], Roman historian (d. [[AD 76]])

== Deaths ==
* [[Nero Claudius Drusus]], son of [[Livia]] and stepson of [[Augustus]] (b. [[38 BC]])

== References ==
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[[Category:9 BC| ]]