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|Centuries:||11th century – 12th century – 13th century|
|Decades:||1120s 1130s 1140s – 1150s – 1160s 1170s 1180s|
|Years:||1156 1157 1158 – 1159 – 1160 1161 1162|
- In the Roman Catholic Church, Cardinals are given the right of election of the Pope. Prior to this, the pope was selected by election by the clergy and congregation of the church.
- Heiji Rebellion in Japan
- Tunis is conquered by the Almohad caliphs.
- Marie of Boulogne becomes the Countess of Boulogne