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Emperor Constantine founded Constantinople on the already existing city, Byzantium. It had fourteen districts, and the avenues had statutes of Alexander the Great, Caesar Augustus, Diocletian, and of Constantine himself.
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Hagia Sophia was built by Constantine II in Constantinople. It was the "Church of the Holy Wisdom."
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A riot broke out over the restrictions set by John of Cappadocia. The ringleaders were to be executed, but they escaped. Supporters were going to ask the emperor to be lenient with these men at the next race. At the race they started chanting "Nika!" at Justinian. The place went violent. The rioters released prisoners from jail and set that building on fire. Lot's of the city was on fire, including the Hagia Sophia.
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He stopped the Nika uprising in Constantinople. He then went to Persia in 533 CE. He eventually defeated them. Then he was sent to Italy and won again. Several times. He then took Sicily in 535. And then Naples and Rome the following year. And last he took Ravenna in 539 (540 depending on the source).
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Muslims first started to raid Byzantine. Then they won twice over Byzantine, one at Ajnadayn and then one at Pella.
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Emperor Basil II completely conquered Bulgaria. This was the result of the Battle of Kleidion.
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Christianity was divided into Roman Catholicism and Easter Orthodoxy. This was caused by disputes about authority.
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Emperor Alexios asks Pope Urban to help fight the Muslims to take back their "Holy Land." Pope Urban than agrees and gives a speech encouraging all Christians to fight against the Muslims.
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Armies of the Fourth Crusade attack Constantinople. About 20,000 men break into this city that the Persians, Avars, and Arabs have been trying to get into for centuries.
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The Ottomans attack with canons, trying to break down Constantinople's walls. Over a month later the Ottomans arttack with their navy. The Ottomans conquer Constantinople.
