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At the heart of the divide between the north and the south was slavery. The south relied on slavery for labor to work the fields.

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A Short History of Slavery | 5 Minute Video

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The final straw for the south was the election of Abraham Lincoln to president of the United States. Abraham Lincoln was a member of the new anti-slavery Republican Party.

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068  Founders' Son: A Life of Abraham Lincoln

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As the United States continued to expend westward, each new state added to the country shifted the power between the north and the south.

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When Lincoln was elected, many of the southern states decided they no longer wanted to be a part of the United States.

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The Election of 1860 and SECESSION [APUSH Review Unit 5 Topic 7] Period 5: 1844-1877

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The idea of states rights was not new to the civil war.

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In the mid-1800s, the economics of many northern states had moved away from farming to industry.

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The first fighting over the slavery issue took place in Kansas.

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the idea that political power belongs to the people, who should decide on banning or allowing slavery.

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a document stating that “neither slavery nor involuntary servitude shall ever exist in any part of the territory.”

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which supported the Wilmot Proviso.

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California was able to enter the Union.

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made it a crime to help runaway

slaves and allowed officials to arrest those slaves in free areas.

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a fugitive slave from Virginia, was

arrested in Boston.