1173
| Years: 1170 1171 1172 - 1173 - 1174 1175 1176 | |
| Decades: 1140s 1150s 1160s - 1170s - 1180s 1190s 1200s | |
| Centuries: 11th century - 12th century - 13th century | |
Events
- Canonization of Saint Thomas a Becket, buried at Canterbury
- August 9th - Construction starts on the Leaning tower of Pisa
- Castle at Abergavenny was seized by the Welsh.
- Conversion to Christianity of Peter Waldo and the subsequent founding of the Waldensians.
- End of Qiandao era and start of Chunxi era of the Chinese emperor Xiaozong
- End of reign of Polish ruler Boleslaus IV of Poland and start of reign of Casimir II of Poland
- Eleanor of Aquitaine and her sons rebell against her husband Henry II of England in the Revolt of 1173-1174
- First recorded use of Algebraic chess notation
Births
- Welsh prince Llywelyn the Great
- Conrad II, Duke of Swabia
- Shinran, founder of Jodo Shinshu Buddhism
Deaths
- Richard of St. Victor
- Belarussian nun Euphrosyne of Polatsk, major contributor to Medieval Belarussian Culture.
- Boleslaus IV, High-Duke of Poland
- Vladimir II Mstislavich, Grand Prince of Kiev
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zh:1173年