53 AC – As a quaestor, Cassius served under Marcus Licinius Crassus and saved the remnants of the Roman army defeated by the Parthians at Carrhae (modern Harran, Turkey).
52-51 AC – Cassius served under Marcus Licinius Crassus and repelled the Parthian attacks on Syria.
49 AC – Cassius commanded part of Pompey’s fleet.
48 AC – Cassius became one of Caesar’s legates.
44 AC – He was the prime mover in the conspiracy to assassinate Julius Caesar.
43 AC – He became one of the conspirators against Caesar. After the murder he left Rome for Syria where he defeated Publius Cornelius Dolabellawho had been assigned Syria by the Senate.
42 AC – Died near Philippi, Macedonia [now in Greece].
– Cassius was defeated by Mark Antony and ordered his freedman to kill him near Philippi.