May 31 in History
455 – Emperor Petronius Maximus is stoned to death by an angry mob while fleeing Rome.
1223 – Mongol invasion of the Cumans: Battle of the Kalka River: Mongol armies of Genghis Khan led by Subutai defeat Kievan…
May 24 in History
919 – The nobles of Franconia and Saxony elect Henry the Fowler at the Imperial Diet in Fritzlar as king of the East Frankish Kingdom.
1218 – The Fifth Crusade leaves Acre for Egypt.
1276 – Magnus Ladulås is…