In 1848, a group of activists that were mostly women, got together in New York to discuss the problem of women's rights. They were invited there by the reformers Elizabeth Cady Stanton and Lucretia Mott. On August 18, 1920, the 19th Amendment to the U.S. Constitution gave American women the right to vote. Also known as women's suffrage. At the time the United States was established, its female citizens never shared all of the same rights as men, including the right to vote. The Progressive Era served many political plans such as, temperance advocates, wanted women to have the vote because they thought it would mobilize an enormous voting block on behalf of their cause, many middle class white people were swayed once again by the argument that the enfranchisement of white women would ensure immediate endurable white supremacy.