What is 1173?
{{Year nav|1173}} {{Year in various calendars|1173}} {{Year article header|1173}} == Events == * [[Canonization]] of Saint [[Thomas Beckett|Thomas à Becket]], buried at [[Canterbury, Kent|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 [[Emperor Xiaozong of Song China|Xiaozong]] * End of reign of [[List of Polish rulers|Polish ruler]] [[Boleslaus IV of Poland]] and start of reign of [[Casimir II of Poland]] * [[Eleanor of Aquitaine]] and her sons rebel against her husband [[Henry II of England]] in the [[Revolt of 1173-1174]] * First recorded use of [[Algebraic notation (chess)|algebraic chess notation]] [[Category:1173| ]]