Augustus (Latin: Imperator Caesar Dīvī Fīlius Augustus; 23 September 63 BC – 19 August 14 AD) was the first Roman Emperor, ruling from 27 BC until his death in AD 14. He led Rome in its transition from the Roman Republic to the Roman Empire.
When Julius Caesar was assassinated, Augustus and his allies fought against the assassins and defeated them. Later, Augustus fought against his allies and defeated them.