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Abraham Lincoln is elected as president.

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Abraham Lincoln is elected as president.

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Lincoln won the presidential election with just 40 percent of the votes, all of them cast in the north. In ten southern states, he was not even on the ballot.

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Rather than wait for congress to act, Brown planned to seize the federal arsenal at Harpers Ferry, Virginia. Brown wanted to use the weapons to arm slaves for a rebellion that would end slavery

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A series of political debates between Abraham Lincoln and Stephen Douglas, who were candidates in the Illinois race for US senator, in which slavery was the main issue.

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A supreme court decision in 1857 that held that African Americans could never be citizens of the United States and that the Missouri compromise was unconstitutional.

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The struggle over slavery soon turned violent. on may 21, 1856, pro-slavery settlers and so called border ruffians from Missouri

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an act passed in 1854 that created the Kansas and Nebraska territories and abolished the Missouri Compromise by allowing settlers to determine whether slavery would be allowed in the new territories.

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The agreement made in order to admit California into the Union as a free state. These agreements included allowing the new Mexico and Utah territories to decide whether to allow slavery outlawing the slave trade in Washington DC and creating a strong fugitive slave law

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the fugitive slave act was passed as part of the compromise of 1850. A 1851 poster warned free African Americans in Boston to watch out for slave catchers looking for escaped slaves. Even people who helped escaped slaves could be jailed.

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A proviso that stated neither slavery nor involuntary servitude shall ever exist in any part of the territory that might be acquired from mexico as a result of the Mexican American war.

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Slaves that tried escaping by running away to freedom in the north. They were often helped by sympathetic northerners to escape to their freedom.

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A powerful force was building that soon pushed the issue into the open again: the second great awakening. Leaders of this early - 1800's religious revival promised that God would bless those who did the lords work. for some Americans the lords work was the abolition of slavery.

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An agreement made by congress in 1820 under which Missouri was admitted to the Union as a slave state and Maine was admitted as a free state.