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The yield of raw cotton doubled each decade after 1800. The cotton gin needed more slaves in order to double it up
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Harriet Tubman made 19 trips in the south and helped 300 slaves escape to the north
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They wanted to determine slavery status by popular sovereignty
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They could not split territories in half
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The party was formed to restore the union to it's mission of champion and promulgator of liberty rather than propagandist of slavery.
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Abraham Lincoln won the election and the south declared that the union was now subsisting between the south carolina and other states under the USA is now dissolved