Years: 1240 1241 1242 – 1243 – 1244 1245 1246 Decades: 1210s 1220s 1230s – 1240s – 1250s 1260s 1270s Centuries: 12th century – 13th century – 14th century Events June 25 – Pope Innocent IV succeeds Pope Celestine IV as the 180th pope. June 26 – Battle of Köse Dag: The Mongols defeat the Seljuk Turks of Rum. Castile captures the city of Murcia from the Moors. The city of Brno is founded in what is now Czech Republic. Births June 28 &nd… (More on 1243)