In 1519, Spanish conquistador

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sailed to the Americas. He landed in
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, where he made alliances with Aztec enemies. His alliances helped him conquer the powerful Aztec empire and take control of Mexico.

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The Spanish conquistador who sailed to the Americas in 1519 and conquered the Aztec empire with the help of alliances with Aztec enemies was Hernán Cortés. He landed in what is now known as Veracruz, Mexico.