-
330
Constantine dedicates Constantinople
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525
Justinian takes the Byzantine throne
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532
Construction of the third Hagia Sophia begins
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Jan 1, 726
Leo III forbids production and worship of icons
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Jan 1, 1095
First Crusade begins
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Jan 1, 1204
Fourth Crusade leads to division of Byzantine Empire
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Jul 25, 1261
Michael Palaiologos recaptures Constantinople
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Constantinople is renamed Istanbul
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Charlemagne is crowned Holy Roman Emperor
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Roman Empire splits after death of Theodosius I