Completion of the original Hagia Sophia under Constantius
15 Jan 532
Fires set during the Nika riots destroy much of Constantinople
24 Dec 537
Hagia Sophia completed
7 May 558
Dome of the Hagia Sophia collapses
1204
Crusaders attack, desecrate and plunder the Hagia Sophia. Today, most of Hagia Sophia's riches can be seen in the treasury of St. Mark's Basilica in Venice.
