The 310s decade ran from January 1, 310, to December 31, 319.

Significant people Tiridates III, King of Armenia (287–330) Ousanas, King of Axum (c.310-c.320) Huai, Emperor of China (307 - 313) Min, Emperor of China (313 - 317) Yuan, Emperor of China (317 - 322) Fíacha Sroiptine, High King of Ireland (285-322) Ōjin, Emperor of Japan, 270-310 Nintoku, Emperor of Japan, 313-399 Shapur II, Sassanid dynasty King of Persia (309-379) Galerius, Roman Emperor (305-311) Constantine the Great, Roman Emperor (306-337) Maxentius, Roman Emperor (306-312) Licinius, Roman Emperor (308-324) Maximinus II, Roman Emperor (311-313) Alexander of Byzantium, Bishop of Byzantium (314-337) Pope Eusebius, Pope of the Roman Catholic Church (309-310) Metrophanes of Byzantium, Bishop of Byzantium (306-314) Miltiades, Pope of the Roman Catholic Church (311-314) Sylvester I, Pope of the Roman Catholic Church (314-335) Girim, King of Silla (298–310) Heulhae, King of Silla (310–356)

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