Pax Romana (Latin for "Roman Peace") was the long period of peacefulness and minimal expansion by the Roman military force experienced by the Roman Empire after the end of the Final War of the Roman Republic and before the beginning of the Crisis of the Third Century. Since it was established by Augustus, it is sometimes called Pax Augusta. Its span was approximately 206 years (27 BC to 180 AD) according to Encyclopedia Britannica or from 70 AD to 192 AD according to The Cambridge Ancient History.