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Cotton was originally difficult to clean and distribute, but after the cotton gin was created, it became much easier to remove the seeds. The inventor Eli Whitney, after his invention became common, was surprised as it gave a "rebirth" of slavery after it was slowly starting to die out. (http://www.history.com/topics/inventions/cotton-gin-and-eli-whitney) [Cotton Gin!]
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A new state was joining the union will cause an uneven number of states that were free and slave states. This then brought the Missouri compromise was an effort to make a solution.
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The underground railroad was a series of paths and safe houses that allowed slaves to escape to freedom. This would then add to the dispute between the South and north.
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This was the largest slave uprising in U.S. history. This rebellion was lead by Nat Turner and it killed 55 to 65 people.
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This was a newspaper that was published in Boston Massachusetts that contributed to the beginning of the Civil war. It was created by William Lloyd Garrison.
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This was a law proposed to ban slavery in any territory won from Mexico during the Mexican war. This was created by David Wilmot and was proposed twice and failed in Senate both times.
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This was a compromise to settle disputes between the North and South about slavery. There was still no lasting settlement, which was a precursor to the civil war.
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This was a series of Violent political confrontations between "Free Staters" and the South. This took place in Kansas over several years.
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This was a raid on a U.S. Arsenal by armed Abolitionists. This contributed to the start of the Civil War as well. (http://www.history.com/this-day-in-history/john-browns-raid-on-harpers-ferry) [click here for more!]
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This election placed Abraham Lincoln in the white house; defeating southern candidate John Breckenridge. Lincoln then made decisions that helped cause the Civil War. (http://www.ushistory.org/us/32d.asp) [1860]
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Feeling threatened to their way of life with slavery by the election of Abraham Lincoln, seven southern states seceded from the U.S. This then makes the Civil war certain.
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This attack is the beginning of the Civil war. The Confederates attacked Fort Sumter and set of on a man-made island in Charleston Harbor. (http://www.history.com/topics/american-civil-war/fort-sumter) [Sumter!]