Nat Turner's Rebellion, which took place in 1831, resulted in the deaths of over 50 white people and led to increased repression of enslaved people in the United States.

Toussaint Louverture was a former enslaved person who became the leader of the Haitian Revolution and fought for the independence of Haiti from French colonial rule.

The American Anti-Slavery Society was founded in 1833 by William Lloyd Garrison and other abolitionists who advocated for the immediate and unconditional emancipation of enslaved people in the United States.

The Fugitive Slave Act was a controversial law that required law enforcement officials in free states to assist in the capture and return of enslaved people who had escaped from slave states.

The North Star was a newspaper founded by Frederick Douglass in 1847 that advocated for the abolition of slavery and the rights of African Americans.

Harriet Beecher Stowe was a British-American author who wrote the novel "Uncle Tom's Cabin" in 1852, which became a bestseller and helped to raise awareness of the horrors of slavery in the United States.

The Truth Sojourner was a newspaper founded by Sojourner Truth in 1850 that advocated for the abolition of slavery and the rights of women.

The Thirteenth Amendment to the United States Constitution, ratified in 1865, abolished slavery and involuntary servitude in the United States.

The Harper's Ferry Raid was a raid on a federal armory in Harper's Ferry, Virginia, led by John Brown in 1859. Brown's goal was to start a slave rebellion, but the raid was unsuccessful and Brown was captured and executed.

The Emancipation Proclamation, issued by President Abraham Lincoln in 1863, freed enslaved people in Confederate territories that were in rebellion against the United States.

The Underground Railroad was a network of secret routes and safe houses used by enslaved people in the United States to escape to free states and Canada.

The Fourteenth Amendment to the United States Constitution, ratified in 1868, granted citizenship to all persons born or naturalized in the United States, including former enslaved people.

Wendell Phillips was a prominent abolitionist who was a member of the American Anti-Slavery Society and gave many speeches against slavery.

The Fifteenth Amendment to the United States Constitution, ratified in 1870, prohibited states from depriving citizens of their right to vote based on race, color, or previous condition of servitude.

Theodore Parker was a prominent abolitionist who was a member of the New England Anti-Slavery Society and gave many speeches against slavery.