100 AC – Birth of the Roman general, politician, and reformer.

84 AC – Married Cornelia, Lucius Cornelius CINNA’s daughter – rejected the order of Lucius Cornelius SULLA to divorce her – joined populist party led by Lucius Cornelius Cinna the Elder, becoming rival of Sulla, leader of oligarchic party  

80 AC – Collected a fleet from Nicomedes IV of Bythinia, his Roman ally 78 BC – returned home after Sulla died.

77 AC – Supported refurbishment of tribunation powers and the recall from exile of the people who supported Marcus Aemilius LEPIDUS in Caesar’s revolt 75-74 BC – had the pirates, who captured him while he was on his way to Rhodes, executed as soon as he obtained ransom – in 74 BC, fought against MITHRADATES VI of Pontus

73 AC – Became a pontiff at Rome.

72-71 AC – Between these years, he took the side of the people who seek power from outside the circle of nobles dominating the Senate.

69-68 AC – Quaestor in Spain.

68 AC – He married Pompeia after Cornelia died.

65 AC- Curule aedile.

64 AC – Presided the trials of the people who committed murder during Sulla’s proscription.

63 AC – Pontifex maximus.

62 AC – Praetor.

61 AC – Governor of Further Spain – protege of Marcus Licinius Crassus – reconciled Crassus with Pompey the Great, marrying Pompey’s relative Pompeia to cement alliance

60 AC – With Crassus and Pompey, formed 1st Triumvirate.

59 AC – Consul.

58 AC – Proconsul in Cisalpine Gaul and Illyria.

58 AC – 051b – upon migration of Helvetii from Switzerland to Gaul, launched conquest of Gaul (Gallic Wars).

58 AC – Defeated Helvetii at Bibracte – defeated Suevi under Ariovistus at Vesontio.

57 AC – Defeated Belgii (including Nervii) in northwestern Gaul.

56 AC – Defeated Veneti in Brittany – defeated Aquitani in southwestern Gaul.

55-53 AC – Crossed Rhine for forays into Germany.

55 AC – Unsuccessfully invaded Britain.

54 AC – Launched more successful invasion of Britain – defeating Cassivellaunus north of Thames – began estrangement from Crassus and Pompey following death of daughter Julia (wife of Pompey).

52 AC – Suppressed revolt led by Vercingetorix.

51 AC – Destroyed remaining resistance.

49 AC – Disregarded senate’s order to disband army, and instead crossed Rubicon river (boundary between Gaul and Italy proper) initiating civil war against Pompey – upon crossing Rubicon, made remark "Alea iacta est" (also "The die is cast").

49-48 AC – Quickly gained control over all Italy as Pompey fled to eastern provinces.

49-44 AC – De facto dictator of Rome.

48 AC – pursued Pompey to Epirus and defeated him at battle of Pharsalus prompting Pompey to flee to Egypt – pursued Pompey to Egypt, where Pompey was murdered on orders of Ptolemy XII, and initiated successful war resulting in downfall of Ptolemy XII – installed Cleopatra VII and Ptolemy XIII as co-regents of Egypt and conducted love affair with Cleopatra.

47 AC – upon invasion of Roman-controlled Syria by Pharnaces II, advanced into Pontus and defeated Pharnaces at battle of Zela  (subject of Caesar’s remark "Veni, vidi, vici", also "I came, I saw, I conquered"). 

46 AC – Returned to Rome and suppressed mutiny by Tenth Legion

46 AC – defeated remaining Pompey loyalists at battle of Thapsus in Africa – instituted more accurate calendar, with 365.25 days per year (Julian calendar).

45 AC – After winning the battle of Munda in Spain he then returned to Rome – initiated reforms, including enlargement of senate and broader extension of citizenship – wrote history-commentaries "De bello Gallico" (also "On the Gallic War") and "De bello civili" (also "On the Civil War").

44 AC – Formally offered royal crown, but declined – began planning the Parthian conquest – on March 15, he was assassinated by conspiracy of subordinates, led by Marcus Brutus, Gaius Cassius Longinus, and Decimus Brutus; he was stabbed at a meeting of the Senate in Pompey’s theater (Ides of March).