Centuries: 11th century - 12th century - 13th century

Decades: 1100s 1110s 1120s 1130s 1140s - 1150s - 1160s 1170s 1180s 1190s 1200s

Years: 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159

Events and Trends

• Peter Lombard writes his Sentences
• Eric the Saint, king of Sweden led the first Christian crusade to Finland.