Roman Empire
- A group of Franks penetrate as far as Tarragona in Spain (approximate date).
- The Goths under King Cniva invade Moesia. They cross the Danube and lay siege to Novae and Marcianopolis.
- Battle of Augusta Traiana: The Romans lose the battle against the Goths.
- Cniva lays siege to Philippopolis (modern Plovdiv). After a long resistance, Cniva conquers the city and slays its one hundred thousand inhabitants.
- The Alamanni drive the Romans from the modern area of Donau-Ries.
- An epidemic begins in Ethiopia, moves into Egypt and the Roman colonies in North Africa, and spreads through the Roman Empire (named the Plague of Cyprian, after St. Cyprian, bishop of Carthage).