— During a Peace negotiation, near Edessa, between The Sassanid King Shapur I and the Roman Emperor Valerian, the Emperor is embushed and captured by the enemy forces and taking prisioner to the Sassanid capital Ctesiphon.
— After the pillage of Antioch the Sassanian army is attacked by surprise by the Palmyrene forces of Odaenathus. Defeated, the Sassanids leave their booty behind and flee home.
— Being deep within the enemy territory, the Eastern Roman Army proclaim emperor Fulvius Macrianus as their emperor. Because of his age, he refuses and passes the throne to his sons Macrianus Minor and Quietus.
— The Goths enter the Aegean Sea, first by pillaging the city of Byzantium, and then by plundering and destroying many coastal cities in the provinces of Asia, Macedonia and Achaia.
— The Agri Decumates is evacuated and abandoned for the lack of troops to deal with the Alamannic invasion.
— A force of Goths is beaten off while trying to sack the cities of Tomi and Marcianopolis, while another Gothic force tries unsuccessfully to pillage the cities of Byzantium and Cyzicus.