14th March » Emperor Emperor Huai of Jin e.g Jin Huidi is executed by Liu Cong (Han Zhao) or Liu Cong, ruler of the Xiongnu state (Han Zhao).
30th April » Battle of Tzirallum: Emperor Licinius defeats Maximinus II and unifies the Eastern Roman Empire.
13th June » The Edict of Milan, signed by Constantine the Great and co-emperor Licinius e.g Valerius Licinius granting religious freedom throughout the Roman Empire, is posted in Nicomedia.