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A series of laws passed to resolve the issue of slavery in territories acquired during the Mexican-American War.
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California was admitted to the Union as a free state as part of the Compromise of 1850.
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Harriet Beecher Stowe's novel that depicted the harsh realities of slavery and fueled abolitionist sentiments.
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Allowed residents of Kansas and Nebraska territories to decide on the legality of slavery, leading to violent conflicts known as Bleeding Kansas.
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Formed in response to the Kansas-Nebraska Act, the Republican Party was founded on anti-slavery principles.
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A series of violent events involving anti-slavery and pro-slavery settlers in Kansas.
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Senator Charles Sumner was attacked by Representative Preston Brooks on the Senate floor after Sumner delivered an anti-slavery speech.
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The Supreme Court ruled that African Americans were not citizens and had no standing to sue in federal court, and that Congress had no power to prohibit slavery in the territories.
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Abraham Lincoln gave a speech stating that the country could not endure permanently half slave and half free.
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Abraham Lincoln was elected as the 16th president of the United States, leading to the secession of Southern states and the onset of the Civil War.