voting rights By medrano_v Period: Nov 30, 1850 to Nov 30, 2000 voting Nov 30, 1865 13th amendment Nov 30, 1869 15th amendment Nov 30, 1896 laws to take voting rights from african americans Nov 30, 1898 supreme court rules that literacy test are constitutional Nov 30, 1915 supreme court declares "grandfather clause" unconstitutional Nov 30, 1920 19th amendment Nov 30, 1937 supreme court rules that poll taxes are unconstitutional Feb 28, 1964 24th amendment Jun 21, 1964 Freedom Summer Nov 30, 1965 voting rights act