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.
Legionary
As Augustus consolidated power in 27BC and founded the Principate, he further professionalized the Roman legionary. Under him, a legionary's term of service was raised to 25 years (before that, a legionary's average term of service was only 10 years) and pay was standardized throughout the legions. Other than the gradual provincialization of recruits and the evolution of some military equipment, Roman legionaries would remain broadly unchanged until the end of the Pax Romana. These legionaries would expand Rome's borders to include lower Britannia, Dacia, North Africa, and more through military campaigns under Augustus and future emperors.