__NOTOC__
Events
By Place
Roman Empire
★
July 3 —
Battle of Adrianople:
Constantine I defeats
Licinius, forcing him to retreat to
Byzantium.
★ July —
Battle of Hellespont:
Crispus, defeats Licinius' naval fleet, allowing his father Constantine the ability to cross over the
Bosporus into Licinius' Asian provinces.
★
September 18 — Constantine definitively defeats Licinius at the
Battle of Chrysopolis, and becomes sole emperor, thus ending the
Tetrarchy.
★
December 19 — Licinius abdicates his position as Emperor.
Religion
★
St Peter's Church,
Rome, founded.
★
Eustathius becomes
bishop of Antioch.
Births
★
Empress Chu Suanzi
Deaths
★
December 20 —
Philogonus,
Patriarch of Antioch
★
Guo Pu
★
Wang Dun
★
Zhang Mao