Years: 1220 1221 1222 – 1223 – 1224 1225 1226 Decades: 1190s 1200s 1210s – 1220s – 1230s 1240s 1250s Centuries: 12th century – 13th century – 14th century Events March 25 – Sancho II is crowned King of Portugal May 31 – Battle of the Kalka River: The Mongol armies of Genghis Khan defeat the Russian warriors. August 6 – Louis VIII is crowned King of France. The Franciscan Rule is approved by Pope Honorius III. For a short time all G… (More on 1223)