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  After the war Mexico City government had little choice but to agree with U.S. terms
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  The compromise added to the North's political powert and political debate deepened the commitment of many Northerners to saving the Union from secession.
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  The Fugitive Slave Law drove aa wedge between the North and the South.
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  Northern free blacks, ex-slaves, and white abolitionists helped slaves escape in the North and Canada.
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  The Book "Uncle Tom's Cabin" moved a generation of northeners as well as europeans to regard all slave owners as cruel and inhuman.
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  This gave Southern slave owners opportunity to expand slavery that had been closed by the Missouri Compromise of 1820.
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  The purpose of the Republican Party was to oppose the spread of slavery in the territories.
 Because this remained mainly a Northern Party, the success threatened the south.
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  Fighting broke out between pro-slavery and antislavery groups.
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  Brooks beat Sumner with a cane because of Sumner's verbal attack about democrats.
 The House voted to Censure Brooks after what he did.
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  Prices for Midwestern Farmers dropped sharply.
 Unemployment in the Northern cities increased.
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  Democrats joined Republicans in rejecting the Lecompton Constitution.
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  The Dred Scott decision increased Northeners' suspicions of a slave power conspiracy and induced thousands of former Democratics to vote Republican.
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  In the book, "Impending Crisis of the South" attacked slavery from another angle. A North Carolina Native believes that slavery weakens the South's economy. Southerners acted fast and banned the book.
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  In what became known as the Freeport Doctrine, Douglass said slavery couldn't exist in a community if local citizens din't pass laws maintaining it.
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  Because John Brown spoke wuith simple elequence at his trial of his humanitarion motives in wanting to free slaves, he was hailed as a martyr by many anti-slavery Northeners.
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  Americans understood that their country was moving to the brink of disintegration after John Browns raid. The election of 1860 would be a test if the Union could surviuve.