18 September in history
8 events that happened on 18 September, from 96 to 1970.
✦ Anniversary of the day
324 CE 1,702 years ago
Constantine defeats Licinius at Chrysopolis
Constantine's victory over his co-emperor Licinius at Chrysopolis, across the Bosporus from Byzantium, made him sole ruler of the Roman Empire. He soon refounded Byzantium as Constantinople.
1048 CE 978 years ago
A Byzantine-Georgian army fights the Seljuks at Kapetron
A Byzantine-Georgian army met a Seljuk raid into Byzantine-ruled Armenia, led by Ibrahim Inal, half-brother of Sultan Tughril I, at Kapetron. In the night battle Byzantine forces won on the flanks, but their Georgian allies were defeated in the centre.
1454 CE 572 years ago
The Teutonic Knights defeat the Polish army at Chojnice
Near the town of Chojnice, the Teutonic Knights defeated a Polish army in the first year of the Thirteen Years' War. The war had begun when the Prussian estates rebelled against the Order and placed themselves under King Casimir IV Jagiellon.
Born on 18 September 6
Died on 18 September 6
Dates as the sources give them: in the Julian calendar before 1582, and in some countries for longer (Britain until 1752, Russia until 1918). Only people whose day of birth or death the records agree on are listed.
