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The Underground Railroad was formed in the late 1700s, and reached its height between 1850 and 1860. One estimate suggests that by 1850, 100,000 slaves had escaped by the "Railroad".
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The cotton gin was a machine that quickly and easily separates the cotton fibers from their seed, allowing for much greater productivity than doing it manually.
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The Liberator was a weekly newspaper published by William Lloyd Garrison in Boston, Massachusetts.
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The Missouri Compromise was an effort by Congress to defuse the sectional and political rivalries triggered by the request of Missouri late in 1819 for admission as a state in which slavery would be permitted.
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The reductions were too little for South Carolina, and on November 24, 1832, a state convention adopted the Ordinance of Nullification, which declared that the Tariffs of 1828 and 1832 were unconstitutional and unenforceable in South Carolina
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learn more hereCongressman David Wilmot first introduced the proviso in the United States House of Representatives on August 8, 1846, as a rider on a $2,000,000 appropriations bill to resolve the Mexican–American War
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Senator Henry Clay introduced a series of resolutions on January 29, 1850, in an attempt to seek a compromise and avert a crisis between North and South.
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It was a novel that sold 300,000 copies within three months and was so widely read that when President Abraham Lincoln uncle toms cabin
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Bleeding Kansas was a series of violent political confrontations in the United States between 1854 and 1861 involving anti-slavery "Free-Staters" and pro-slavery "Border Ruffian", or "southern" elements in Kansas
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The Kansas-Nebraska Act was passed by the U.S. Congress on May 30, 1854. It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders.
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The Lincoln–Douglas debates were a series of seven debates between Abraham Lincoln, the Republican candidate for the United States Senate from Illinois
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Convinced that their way of life, based on slavery, was irretrievably threatened by the election of President Abraham Lincoln (November 1860), the seven states of the Deep South (Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina and Texas) seceded from the Union during the following months
