Read the excerpt from Suffragists' "Great Demand" Banner.The effort picked up steam after the Civil War, when debate over the Fifteenth Amendment to the U.S. Constitution, which extended the vote to African American men, split the movement. Some leaders, like Susan B. Anthony, Elizabeth Cady Stanton, and Sojourner Truth, refused to endorse the amendment, believing it should also give women the vote. Others, such as Julia Ward Howe, Lucy Stone, and long-term women’s rights ally Frederick Douglass, argued that if black men were enfranchised, their support would help women achieve their goal. The conflict fractured the women’s movement, with some focusing on obtaining women’s suffrage state by state, others aiming at achieving universal suffrage at the federal level.