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Hagia Sophia
Hagia Sophia is a former Orthodox patriarchal basilica, later a mosque, and now a museum in Istanbul, Turkey...
Timeline of Events
537
12.27.537
The Hagia Sophia is completed.
558
5.7.558
In Constantinople, the dome of the Hagia Sophia collapses. Justinian I immediately orders that the dome be rebuilt.
563
12.24.563
The Byzantine church Hagia Sophia in Constantinople is dedicated for the second time after being destroyed by earthquakes.
1054
7.16.1054
Three Roman legates break relations between Western and Eastern Christian Churches through the act of placing an invalidly-issued Papal Bull of Excommunication on the altar of Hagia Sophia during Saturday afternoon divine liturgy. Historians frequently describe the event as the start of the East-West Schism.