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  Eastern Roman Empire was based in Constantinople and the Western empire based in Rome/Ravenna
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  The eastern empire survives and is now named the Byzantine Empire
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  He recovers parts of the fallen western empire. He codifies the previous roman laws into one document. The Hagia Sofia is constructed.
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  Lombards later takes over Northern Italy
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  The theme system is installed. The empires language changes to greek.
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  The attack is held off
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  He is crowned by pope leo the 3rd. And for the first time in 300 years there is a emperor of the east and west.
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  And later attacks Constantinople. The Byzantines destroy the Russian fleet.
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  The crusaders are successful but eventually withdraw from cooperation with Byzantines.
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  Hopes of regaining Asia Minor are lost
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  The capture was a blow from which the Byzantines never fully recovered.
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  End of the Byzantine empire