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828,000 square miles of land purchased
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A French-British dispute that got the U.S. involved with the French while the Native Americans joined the British side.
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This compromise proposed by Henry Clay in 1820 was to maintain sectional balance and allowed Missouri to enter the Union as a slave state while Maine entered free.
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In 1835 thousands of Cherokees and other Indians were forcefully marched to Oklahoma territory under the supervision of the U.S. army.
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Early in 1836 Texas declared their independence from the Mexican government.
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Mexicans and the Americans were in a dispute over the boundaries of Texas and also control of California.
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Concessions were made in both the North and the South following the Mexican American War.
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It said that Kansas and Nebraska would be admitted into the Union under popular sovereignty.
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The Union Pacific Railroad and the Central Pacific Railroad connected at Promontory Point.