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Cotton Gin invented
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Missouri Compromise
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Nat Turner's rebellion
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Mexican American War ends
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California Gold rush begins
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Compromise of 1850
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"Uncle Tom's Cabin" published
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Gadsen Purchase
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Kansas Nebraska Act
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Ostend Manifesto
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Dred Scott decision
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"Impending Crisis in the South" written
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Harper's Ferry rebellion
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South Carolina secedes
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Election of Abraham Lincoln