46 BC

Year 46 BC was the last year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Caesar and Lepidus.

Events
 Titus Labienus defeated Julius Caesar in the Battle of Ruspina.
 Julius Caesar defeated the combined army of Pompeian followers and Numidians at Thapsus.
 Caesar leaves for Farther Hispania to deal with rebellion in Rome.
 Caesar changes the Roman calendar to create the Julian calendar. The Julian Calendar remains the standard in the western world until the Gregorian Calendar in 1582.
 Caesar appoints his nephew Octavian his heir.

Births

 Publius Quinctilius Varus, Roman politician (d. 9 AD)

 Deaths 

Cato the Younger (Marcus Porcius Cato) (b. 95 BC)
Metellus Scipio (b. c. 100 BC)
Vercingetorix, Gaul leader