On June 4, 1919, Congress passed a joint resolution proposing a 19th Amendment to the Constitution that prohibited states from denying the vote on the basis of sex.
Suffragists’ fight for that long-sought amendment was not quite over, however. To become part of the Constitution, the amendment had to be ratified by legislators in three-fourths of the 48 states, a grueling process completed 14 months later, when Tennessee voted in favor on August 18, 1920.
On August 26, 1920, the U.S. Secretary of State certified that the 19th Amendment had obtained the necessary ratifications to become part of the Constitution.
This landmark moment in American history had not been achieved easily. It took three generations of relentless political pressure to win women a constitutional guarantee of equal voting rights with men in their states.
Learn more in our new exhibit “Rightfully Hers.”














