Apr 14 Battle of Forum Gallorum: Mark Antony, besieging Julius Caesar's assassin Decimus Junius Brutus in Mutina, defeats the forces of the consul Pansa, who is killed.
Apr 21 Battle of Mutina: Mark Antony is again defeated in battle by Aulus Hirtius, who is killed. Antony fails to capture Mutina and Decimus Brutus is murdered shortly after.
Aug 19 Octavian, later known as Augustus, compels the Roman Senate to elect him Consul
Nov 26 Second Triumvirate alliance of Roman leader Octavian (later Caesar Augustus), Marcus Aemilius Lepidus, and Mark Antony formed
Dec 7 Marcus Tullius Cicero, Roman orator and politician is assassinated in Formiae