Events

By place

Roman Empire

• Valerian, captured by King Shapur I of Persia, and is later killed in captivity.
• Postumus revolts against Gallienus in Gaul. The western provinces of Britain and Spain join his independent realm—which is called in modern times the Gallic Empire.
• The Roman fort of Wiesbaden (Germany) is captured by the Alamanni (possibly 260).
• The Franks, who invaded the Roman Empire near Cologne in 257, reach Tarraco in Hispania.

Asia

• Mesopotania: Odaenathus, the ruler of the kingdom of Palmyra, sacks the city of Nehardea, destroying its great yeshiva.

By topic

Religion

• Pope Dionysius is elected as the 25th pope.

Births

• Emperor Hui of Jin
• Tao Kan, general of Jin Dynasty
• Empress Yang Zhi, empress of Jin Dynasty

Deaths