Women in the United States got the right to vote with the ratification of the 19th Amendment to the U.S. Constitution. This amendment was passed by Congress on June 4, 1919, and ratified on August 18, 1920. The 19th Amendment legally granted women the right to vote, stating that the right of citizens to vote shall not be denied on account of sex. This was the culmination of decades of activism and struggle by women's suffrage supporters. The amendment was officially certified on August 26, 1920, and is often celebrated as the key date for women's suffrage in the U.S.