What led to the Magna Carta By dcannon358 May 28, 1049 Pope Leo IX takes the throne, starting the Great Schism May 28, 1066 William the Conqueror takes English throne May 28, 1077 Tower of London made Used to hold many prisoners in the future. May 28, 1095 Pope Urban calls for the Crusades May 28, 1106 Henry I takes the throne accelerated the inevitable English and French Conflict May 28, 1135 The Anarchy begins, bringing upheavel with it May 28, 1189 Richard I ascends to the throne Apr 20, 1210 King John's fee demands became unreasonable May 28, 1212 Children's crusade People realized that crusades were useless May 27, 1215 Rebllion against King John Jun 15, 1215 Signing of the Magna Carta