Woman Suffrage By Hadi 1840 Women's Convention in the US. 1848 The first Women's Rights Convention 1849 Property rights to women. 1866 The American Equal Rights Association 1870 The Fifteenth Amendment gave black men the right to vote 1874 The Woman's Christian Temperance Union (WCTU) is founded by Annie Wittenmyer 1878 A Woman Suffrage Amendment is proposed in the U.S. Congress 1887 The first vote on woman suffrage is taken in the Senate 1893 Colorado adopts woman suffrage 1894 600,000 signatures 1896 Idaho adopts woman suffrage 1910 Washington adopts woman suffrage 1912 Woman suffrage is supported at national level 1914 Nevada and Montana adopt woman suffrage 1915 Pennsylvania, New Jersey, New York and Massachusetts continue to reject woman suffrage 1917 New York woman gain suffrage 1918 Michigan, South Dakota and Oklahoma adopt women suffrage Aug 26, 1920 American Women win full voting rights