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Stephen Arnold Douglas was an American politician from Illinois and the designer of the Kansas–Nebraska Act.

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The Wilmot Proviso proposed an American law to ban slavery in territory acquired from Mexico in the Mexican War.

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Popular sovereignty, or the sovereignty of the peoples' rule, is part of the seven principles.

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restriction of interest to a narrow sphere

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The Free Soil Party was a short-lived political party in the United States active in the 1848 and 1852.

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As part of the Compromise of 1850, the Fugitive Slave Act was amended and the slave trade in Washington.

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The Fugitive Slave Law or Fugitive Slave Act was passed by the United States Congress on September 18, 1850

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Uncle Tom's Cabin; or, Life Among the Lowly, is an anti-slavery novel by American author Harriet Beecher Stowe.

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The Kansas-Nebraska Act was passed by the U.S. Congress on May 30, 1854.

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The Republican Party, commonly referred to as the GOP.

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Dred Scott v. Sandford, 60 U.S. 393, also known as the Dred Scott case.

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Roger Brooke Taney was the fifth Chief Justice of the Supreme Court, holding that office from 1836 until his death in 1864.

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Abraham Lincoln was an American statesman and lawyer who served as the 16th President of the United States from March 1861 until his assassination in April 1865.

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The Lincoln–Douglas debates were a series of seven debates between Abraham Lincoln.

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FREEPORT DOCTRINE was Stephen Douglas's doctrine that, in spite of the Dred Scott decision, slavery could be excluded from territories of the United States by local legislation.

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Jefferson Davis was an American politician who served as the only President of the Confederate States from 1861 to 1865.

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John Brown's raid on Harper's Ferry was an effort by armed abolitionist.

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The Constitutional Union Party was a political party in the United States created in 1860 which ran against the Republicans and Democrats as a fourth party in 1860.

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John Bell was an American politician, attorney, and planter.

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Women's rights is the fight for the idea that women should have equal rights with men.