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Kansas- Nebraska Act
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Dred Scott decision
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Panic of 1857
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Lincoln-Douglas debates
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South Carolina secedes from Union
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First Battle of Bull Run
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Seven Days' Battle
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Second Battle of Bull Run
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Battle of Gettysburg
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Battle of Cold Harbor
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Lincoln defeats McClellan for presidency
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Lincoln assassinated
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Reconstruction Act
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Fifteenth Amendment ratified
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Reconstruction ends