Prohibition was a major reform movement from the 1870s until the 1920s, when nationwide prohibition went into effect. The Women's Crusade of 1873 and the Woman's Christian Temperance Union (WCTU), founded in 1874, were means through which certain women organized and demanded political action, well before they were granted the vote. The WCTU and the Prohibition Party were major players until the 20th century, when the Anti-Saloon League emerged as the movement's leader. By 1913, 9 states had statewide prohibition and 31 others had local option laws in effect. The League then turned their efforts toward attaining a constitutional amendment and grassroots support for nationwide prohibition.