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Missouri Compromise is Passed
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Railroads Appear in the United States
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Landscape with Indian
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John O'Sullivan Coins the Term Manifest Destiny
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Period: to
Mexican-American War
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Kansas-Nebraska Act
The Kansas-Nebraska Act creates the states of Kansas and Nebraska. This creates a fight over whether or not slavery should be legal in the new territory of Kansas after the Missouri compromise. -
A Tight Fix
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Valley of the Catawissa in Autumn
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Period: to
Construction of the Trans-Continental Railroad