The movement that sought to end the practice of slavery in the United States is known as the Abolitionist Movement. This social and political campaign gained momentum in the early 19th century, championed by figures like Frederick Douglass, Harriet Tubman, and Sojourner Truth. Abolitionists argued that slavery was morally, ethically, and socially wrong, advocating for the immediate emancipation of enslaved people. They utilized various methods, including pamphlets, speeches, and the Underground Railroad, to awaken public consciousness about the injustices of slavery. The movement culminated in the Civil War, which ultimately led to the passage of the 13th Amendment, abolishing slavery in 1865.