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In 1803 the United States bought the western half of the Mississippi River from France for $15,000,000

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May 14, 1804 Meriwether Lewis and William Clark started their Expedition on the the Mississippi River

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¨Trail of Tears.¨Indian Removal Act-1830

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¨Trail of Tears.¨Indian Removal Act-1830

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Native Americans who lived on the west side of the Mississippi River were removed from their homes further west.

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The great migration was on of the largest mass of migraters with almost 400,000 people making to 2,000 mile travel

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The California gold rush caused its own wave if immigration and settlements in the west.

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During the civil war adult citizens who were not against U.S. government had the opportunity to claim 160 arcs of land.

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In 1893 Robert Porter the the superintendent of the Census declared that the western frontier was closed for good