The Roman peace; the long period of peace enforced on states in the Roman Empire WordNet 3.0 & Open English WordNet

The Pax Romana is a roughly 200-year-long timespan of Roman history which is identified as a period and golden age of increased and sustained Roman imperialism, relative peace and order, prosperous stability, hegemonial power, and regional expansion. Wikipedia

A long period of peace in the early years of the Roman Empire. Wikipedia Disambiguation

Roughly 200-year-long period in Roman history Wikidata

The long period of relative peace and minimal expansion by military force experienced by the Roman Empire between 27 BC and 180 AD. Wiktionary