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The Aztecs arrive in the Valley of Mexico.
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The city of Tenochtitlan is founded. It will become the capital of the Aztec Empire.
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The Aztec Empire is formed with a triple alliance between the Aztecs, the Texcocans, and the Tacubans. The Aztecs defeated the Tepanecs.
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Spanish conquistador Hernan Cortes arrives in Tenochtitlan. The Aztecs treat him as an honored guest, but Cortez takes Montezuma II, prisoner. Cortez is driven from the city, but Montezuma II is killed.
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Cortes defeats the Aztecs and takes over the city of Tenochtitlan.