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Attempt to re-capture Jerusalem
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Alexius I ask Pope Urban II for help
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Urban called a war against the Muslims
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The Cusaders defeated the city of Nicea
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Many people volunteer to fight
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First Cusade led by Count Raymond IV
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The crusaders first gathered in Constantinople
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About 10,000 people gathered to travel
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The Cusaders defeated Antioch in 7 months
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The attack and capture of Jerusalem started.