Late February: Caelius erects his tribunal next to Trebonius and sets off a riot.
Late March: Antony crosses the Adriatic Sea to join Caesar. Caelius sets off a second riot.
April: Pompey and Caesar begin military operations at Dyrrachium. The Senate invokes the Ultimate Decree against Caelius. Milo escapes from Massilia to return to Italy.
17 July: Pompey nearly overruns Caesar's forces at Dyrrachium. Caesar decides to withdraw. The theater of battle moves inland to Thessaly.
9 August: Cassandra is buried. Caesar and Pompey engage in battle near the town of Pharsalus in Thessaly.