Post Classical Byzantine Empire By Deja Holman Period: Dec 31, 600 to Dec 31, 1450 Byzantine Empire Dec 31, 1054 Byzantine Empire Great Schism between Esatern and Weastern churches Dec 31, 1071 Byzantine Empire Battle of Manzikert Dec 31, 1075 Byzantine Empire Rulers of the Themes Rebellion Dec 31, 1204 Byzantine Empire Fourth Crusade result on Byzantium