: 2nd century BC
- 1st century BC
- 1st century
Decades: 100s BC 90s BC 80s BC 70s BC 60s BC - 50s BC - 40s BC 30s BC 20s BC 10s BC 0s BC
Years: 63 BC 62 BC 61 BC 60 BC 59 BC 58 BC 57 BC 56 BC 55 BC 54 BC 53 BC
- First year of Julius Caesar's Gallic Wars: June - Caesar defeats the migrating Helvetii in the Battle of the Arar.
- July - Caesar decisively defeats the Helvetii in the Battle of Bibracte.
- September - Caesar decisively defeats the forces of the Germanic chieftain Ariovistus near modern Belfort