Events

• Saladin abolishes the Fatimid caliphate, restoring Sunni rule in Egypt.
• Rhys ap Gruffydd agrees to negotiate with Henry II of England.
• Construction of the Cathedral of Saint Sabino in Bari is completed.
• Serbian ruler Stefan Nemanja begins sole reign.
• Alfonso II of Aragon conquers Caspe and Teruel.
• Henry II of England, with the aid of the ousted King of the Irish province of Leinster, Diarmait MacMurrough, sponsors the Norman invasion of Ireland, sparking eight centuries of conflict and war between Ireland and England.

Births

• August 15 - King Alfonso IX of Leon (died 1230)
• Agnes of France, daughter of Louis VII of France (died after 1207)

Deaths

• January 1 -Diarmait Mac Murchada, King of Leinster
• February 20 - Conan IV, Duke of Brittany (born 1138)
• November 8 - Baldwin IV, Count of Hainaut (born 1108)
• Henry of Blois, bishop of Winchester (born 1111)
• Gleb of Kiev

1171

1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171년 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171年 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171 | 1171年