261
Year 261 (CCLXI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gallienus and Taurus (or, less frequently, year 1014 Ab urbe condita). The denomination 261 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Events
By place
Roman Empire
Emperor Gallienus crushes the Alemanni at Milan (possible date).
Gallienus repeals the edict of 258, which led to the persecution of the Christians.
Gallienus usurpers: The rebellion of Macrianus Major, Macrianus Minor, and Quietus against Gallienus comes to an end. They march from Asia to Europe but are defeated in Thrace by Gallienus' general Aureolus, and both are killed. Quietus flees to Emesa, where he is killed by Odaenathus of Palmyra.
Roman–Persian Wars: Balista, Roman usurper, collects ships from Cilician ports and defeats the Persian fleet near Pompeiopolis, capturing the harem of king Shapur I.