Timeline of the Hagia Sophia By 22babies 532 Nika Riots 532 Theodosius' Church Burnt to the Ground 532 Justinian Orders new church to be built Period: 532 to Apr 4, 2013 Timeline of Hagia Sophia 537 Construction Ends Apr 4, 1204 Sacked by Venetians, becomes Roman Catholic Church Jul 17, 1261 Constantinople Recaptured. Greek Orthodox Cathedral May 29, 1453 Constantinople Falls, Hagia Sophia converted into a Mosque Apr 4, 1454 Minarets added Feb 1, 1935 Mosque secularlized. Becomes a museum, Jun 1, 1997 Restoration of Hagia Sophia
