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Hungary adopts Christianity.
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Pope Urban 2 launches the First Crusade
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Crusaders conquer Jerusallem.
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The second crusade begins.
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Turks take over Jerusalem
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The Third Crusade begins.
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The Forth Crusade begins
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The Black Death begins in Europe
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The Peasants' Revolt in England
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Geoffrey Chaucer writes The Canterbury Tales.
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Constantinople falls to the Turks.
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The feudal system begins in the Frankish Empire under Charlemagne
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First version of Anglo-Saxon Chronicle is written.
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Denmark adopts Christianity.
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Poland adopts Christianity.
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Kiev Rus adopts Christianity.