The Byzantine Empire By 4010881 525 Theodora married Justinian 527 Justinian became the emperor of the Eastern Empire 528 Justinian's code was established 532 Hagia Sophia was built 532 Nika Riots (Rebellion ) took place 533 Justinian sent Belisarius to recover North America from the Vandals 535 Belisarius took Rome from the Ostrogoths 551 Justinian conquered all of the territory that was once Rome Jan 1, 601 Empress Theodora restored icons to the Eastern Churches Jan 1, 717 Emperor Leo III banned the use of icons Jan 1, 988 Vladimir Of Kiev converted to Byzantine Christianity Feb 10, 1054 Great Schism - Christianity was divided ( Roman Catholic and Easter Orthodox) Jan 1, 1095 Pope Urban II launched the Frist Crusade against the Turks (Muslims) Jan 1, 1099 Christian Crusadeers captured Jerusalem and massacred Jews and Muslims Jan 1, 1240 Batu Khan (Genghis Khan's grandson) led the Mongol defeat of kiev Jan 1, 1453 Constantinople fell to the Ottoman Turks Jan 1, 1453 Seljuk Turks attacked and captured Baghdad from the Persians Jan 1, 1453 Seljuks Turks crushed the Byzantines at the Battle of Manzikert Jan 1, 1462 Czar Ivan III broke Russia (formerly Kiev) from Mongol control Jan 1, 1520 Ottoman Empire began - Osman started building a small state in Anatolia