The historical consequence of the abolitionist movement in the United States was the eventual end of slavery with the passage of the 13th Amendment in 1865. The abolitionist movement, driven by moral, humanitarian, and political efforts, galvanized public opinion against the institution of slavery and led to significant activism. Key figures like Frederick Douglass and Harriet Tubman advocated for equality and justice, influencing public sentiment and legislative actions. The movement's success set the stage for subsequent civil rights advancements and the ongoing struggle for racial equality in America.