Important Historical Events of the year 1173, Year 1173 in History

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List of 1173 Major News Events in History, Most Important Historical Events in 1173

What happened in the year 1173?

Date	Event
August 9, 1173	Construction of the campanile of the Cathedral of Pisa (now known as the Leaning Tower of Pisa) begins; it will take two centuries to complete.
September 1, 1173	The widow Stamira sacrifices herself in order to raise the siege of Ancona by the forces of Emperor Frederick Barbarossa.[2][3][4]