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  Emperor Constantine came into power.
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  Byzantine empire founded!
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  The great schisman!
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  loss of southern Italy to the Normans
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  Loss of Syria to Muslims
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  Byzitenes defeated in Thrace
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  Reconquest of southwestern Asia
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  Fourth Crusade is assembled in Venice
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  Emperor Leo the third bans the use Icons!
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  Fall of Constantinople to the Ottomans. End of the Byzantine Empire
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  Muslims attack Constaniople
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  The use of Icons is restored!
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  Basil the second becomes emperor
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  Basil the second reconqures greece from Bulgars
