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Established the first European settlement in the region near what is now El Paso, Texas.
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Found Santa Fe, New Mexico
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France claimed the land drained by the Mississippi River
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New Orleans was found
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The Spanish settled in parts of California and Texas
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When the American Revolution ended
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More discoveries of mineral wealth in other areas of the region.
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President Thomas Jefferson purchased the vast Louisiana Territory from France.
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Americans had come to believe in the idea of Manifest Destiny.
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The United States annexed, or took control of, Texas.
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Two countries reached an agreement
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In the Treaty of Guadalupe Hidalgo, Mexico gave the United States a vast area that later formed all of California,
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The first line from the Mississippi River to the Pacific Ocean was completed
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A huge reserve of silver lured them to Nevada