The Treaty of Dardanos (85 BC) was a Roman treaty after the First Mithridatic War. 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: 90 BC 89 BC 88 BC 87 BC 86 BC - 85 BC - 84 BC 83 BC 82... The First Mithridatic War was fought between the Roman Republic and Mithridates VI Eupator Dionysius, the king of Pontus. ...