Abolitionist societies were groups formed in the 19th century to advocate for the end of slavery. These organizations aimed to raise awareness about the injustices of slavery and promote the rights of enslaved individuals. They often organized meetings, published pamphlets, and lobbied for legislative changes to abolish slavery. Key figures in these societies included Frederick Douglass, William Lloyd Garrison, and Harriet Tubman. Many abolitionist societies also worked to assist escaped slaves through the Underground Railroad, providing safe houses and support. Their efforts contributed significantly to the eventual abolition of slavery in the United States.