Theodore Dwight Weld (November 23, 1803 in Hampton, Connecticut – February 3, 1895 in Hyde Park, Massachusetts) was one of the architects of the American abolitionist movement during its formative years from 1830 to 1844, playing a role as writer, editor, speaker, and organizer. He is best known for his co-authorship of the authoritative compendium "", published in 1839. Harriet Beecher Stowe partly based "Uncle Tom’s Cabin" on Weld's text; the latter is regarded as second only to the former in its influence on the antislavery movement. Weld remained dedicated to the abolitionist movement until slavery was ended by the Thirteenth Amendment to the United States Constitution in 1865.