Slavery's growth into the western territories was addressed by John Brown's raid on Harpers Ferry and the Supreme Court's Dred Scott decision.
This bloody struggle, which ravaged Kansas, gave national attention to John Brown, who would escalate sectional tensions over slavery to unprecedented heights in 1859 with his Harpers Ferry Raid, an effort to incite a huge slave uprising.
Prior to Brown's invasion, the United States Supreme Court had added fuel to the flames of sectionalism in 1857 with its decision in the Dred Scott case, which included an enslaved person who claimed freedom on the grounds that he had been taken to live in free territory.
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