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America gained 828,000 square miles from France
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Sets the British and American border at the 49th parallel
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treaty between the United States and Spain in 1819 that gave West Florida to the U.S. and set out a boundary between the U.S.
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The Texas annexation was the 1845 incorporation into the United States of America of the Republic of Texas, which was admitted to the Union as the 28th state.
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the southwestern portion of the territory was admitted to the Union as the State of Oregon
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The region of the modern day southwestern United States that Mexico ceded to the U.S.
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The Gadsden Purchase is a 29,640-square-mile area in southern Arizona and southwestern New Mexico. signed by James Madison.
