History of Oceania

How many years has the world been at peace?

The world has never been at peace. There has always been some form of conflict or tension between countries or groups of people. The closest the world has come to peace was during the Pax Romana, a period of relative peace in the Roman Empire from 27 BC to 180 AD. However, even during the Pax Romana, there were still minor conflicts and rebellions within the empire.