List of 1223 Major News Events in History, Most Important Historical Events in 1223
| Date | Event |
|---|---|
| May 31, 1223 | Mongol invasion of the Cumans: Battle of the Kalka River: Mongol armies of Genghis Khan led by Subutai defeat Kievan Rus' and Cumans. |
| July 14, 1223 | Louis VIII becomes King of France upon the death of his father, Philip II. |