46 BC

EventsBy placeRomeConsuls: Gaius Julius Caesar, Marcus Aemilius LepidusCivil War:January 4 — Titus Labienus bloodily defeats Julius Caesar in the Battle of Ruspina.February 6 — Julius Caesar defeats the combined army of Pompeian followers and Numidians under Metellus Scipio and Juba at Thapsus.April 20 — Cicero, in Rome, writes to Varro "If our voices are no longer heard in the Senate and in the Forum, let us follow the example of the ancient sages and serve our country through our writings, concentrating on questions of ethics and constitutional law."September 26 — Julius Caesar dedicates a temple to his mythical ancestor Venus Genetrix in fulfillment of a vow he made at the battle of Pharsalus.November — Caesar leaves for Farther Hispania to deal with a fresh outbreak of resistance.Caesar reforms the Roman calendar to create the Julian calendar. The transitional year is extended to 445 days to synchronize the new calendar and the seasonal cycle. The Julian Calendar would remain the standard in the western world for over 1600 years, until superseded by the Gregorian Calendar in 1582.Caesar appoints his nephew Octavian his heir.Caesar subdues a mutiny of his Tenth Legion.Caesar celebrates his Gallic Triumph, after which Vercingetorix is executed.c. 46 BC–39 BC — Vitruvius described Etruscan and Roman architecture.
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