The movement that sought to abolish slavery in the United States was the abolitionist movement. Prominent in the 19th century, this movement comprised a diverse alliance of individuals, including African Americans, white reformers, and religious groups. Abolitionists advocated for the end of slavery through various means, including literature, speeches, and political action. Figures like Frederick Douglass, Harriet Tubman, and William Lloyd Garrison played crucial roles in raising awareness of the moral and political issues surrounding slavery. The movement was instrumental in leading to the Civil War and the eventual passage of the Thirteenth Amendment, which abolished slavery in 1865.