Centuries: 2nd century BC - 1st century BC - 1st century

Decades: 130s BC 120s BC 110s BC 100s BC 90s BC - 80s BC - 70s BC 60s BC 50s BC 40s BC 30s BC

Years: 91 BC 90 BC 89 BC 88 BC 87 BC - 86 BC - 85 BC 84 BC 83 BC 82 BC 81 BC

---

Events

• First Mithridatic War - The Roman forces of Lucius Cornelius Sulla defeat the Pontic forces of Archelaus in the Battle of Chaerona .

Births

• October 1 - Sallust, Roman historian

Deaths

• January 13 - Gaius Marius, Roman general and politician