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Events

By Place

Roman Empire

• Valerian I recovers Antioch from Shapur.
• The Goths build a fleet on the Black Sea.
• The Goths separate into the Ostrogoths and the Visigoths.
• Aurelian defeats the Goths along the lower Danube, bringing many prisoners back to Rome.

By Topic

Religion

• Valerian's persecution of Christians begins: his edict orders bishops and priests to sacrifice according to the pagan rituals, and prohibits Christians, under penalty of death, from meeting at the tombs of their deceased.
• Pope Sixtus II succeeds Pope Stephen I

Births

• Saint Gregory the Illuminator, founder and patron saint of the Armenian Church (approximate date)

Deaths

• Pope Stephen I

257

257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257년 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257年 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | 257 | พ.ศ. 800 | 257 | 257 | 257年