A map of the United States and territories at the time of the slavery prohibition issue in 1850, after the Missouri Compromise of 1820. The map is color-coded to show the areas where slavery was prohibited by State Law, slavery was...

A map of California, the Utah Territory, and the New Mexico Territory in 1850 showing the effect of the Compromise of 1850, a series of bills intending to settle the issue of slavery and abolition raised in the territories after the...

A map of the United States during the heated presidential election of 1856, showing the States carried by the Republican Party (John Fremont), Democrat Party (James Buchanan), and the newly formed American Party, or 'Know-Nothing’ Party...

A map of the United States during the heated presidential election of 1856, showing the States carried by the Republican Party (John Fremont), Democrat Party (James Buchanan), and the newly formed American Party, or 'Know-Nothing’ Party...

A map of the United States at the time of the passing of the Compromise of 1850 (September, 1850). This compromise was a series of bills attempting to resolve territorial and slavery issues raised by the Missouri Compromise (1820) and...

A map of California and the western territories at the time of the Compromise of 1850. The compromise was a series of bills dealing with the slavery issue, and under its provisions California was admitted to the Union as a free state,...

A map of the United States showing the results of the 1855 State elections, indicating the political trends regarding the Kansas-Nebraska Act of 1854 and the slavery issue in the admission of Kansas into the Union.

Abraham Lincoln, former United States President, involved in slavery issues and the Civil War.-E. Benjamin Andrews 1895

William H. Seward, former United States Senator from New York involved in slavery issues.-E. Benjamin Andrews 1895

A map of the United States in 1821 showing the results of the Missouri Compromise of 1820 over the issue of prohibition of slavery. The map is coded to show the areas of the Free States, the Slave States, the Michigan Territory as Free...

A map of the United States in 1854 showing the results of the test-vote on the Kansas-Nebraska Bill in the House of Representatives, which would repeal the Missouri Compromise of 1820 and allow territorial settlers to determine if...

A fascinating article examining the issue of white Europeans who ended up being sold or kidnapped into slavery in North Africa during the 17th century.