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31 January 256 AD
year 3 of Valerianus and year 3 of Gallienus, Mecheir 5
reign of Valerianus(29 August 253 AD to 19 June 260 AD)
reign of Gallienus
(1 October 253 AD to 30 September 268 AD)
Soldier emperors
(1 January 235 AD to 31 December 284 AD)
Roman period
(1 January 30 BC to 31 December 284 AD)
Stable URI (with TM Period ID):
www.trismegistos.org/time/214798
