Rome Timeline By abro 753 BCE 753 B.C. Founding of Rome by Romulus 509 BCE 509 B.C. Overthrowing of the Etruscan king 476 BCE A.D. 476 German barbarians conquered Rome 395 BCE A.D. 395 Roman Empire was split into two parts; Western and Eastern 380 BCE A.D. 380 Theodosius made Christianity the state religion of the Roman 312 BCE A.D. 312 Constantine converted to become a Christian 100 BCE 100 B.C. Marius was elected consul. 88 BCE 88 B.C. Sulla's march on Rome 87 BCE 87 B.C. First Mithridatic War 83 BCE 83 B.C. Sulla's civil war 81 BCE 81 B.C. Second Mithridatic War 73 BCE 73 B.C. Third Mithridatic War 46 BCE 46 B.C. Julius Caesar became dictator for life 44 BCE 44 B.C. Julius Caesar was stabbed to death 33 BCE A.D. 33 Jesus crucified 27 BCE 27 B.C. Augustus became the first Roman emperor