Augustus
Augustus (; 23 September 63 BC – 19 August AD 14) was a Roman statesman and military leader who was the first Emperor of the Roman Empire, controlling Imperial Rome from 27 BC until his death in AD 14. His status as the founder of the Roman Principate has consolidated an enduring legacy as one of the most effective and controversial leaders in human history.
Constitutional reforms of Augustus
Julius Caesar campaigned in Gaul from 59 BC to 49 BC, which granted him unmatched military power and popularity with the people of Rome. With the Gallic Wars concluded, the Senate ordered Caesar to lay down his military command and return to Rome as a "privatus" ("private citizen"). Caesar refused, and marked his defiance in 49 BC by crossing the Rubicon River at the head of his army, leaving his province and illegally entering Roman territory under arms. Civil war resulted, from which Caesar emerged as the unrivaled ruler of Rome.