What day of the week was May 31, 1223?
The day of the week May 31st, 1223 fell on was a Wednesday.
Mongol invasion of the Cumans: Battle of the Kalka River Mongol armies of Genghis Khan led by Subutai defeat Kievan Rus' and Cumans.
The day of the week May 31st, 1223 fell on was a Wednesday.
Mongol invasion of the Cumans: Battle of the Kalka River Mongol armies of Genghis Khan led by Subutai defeat Kievan Rus' and Cumans.