In 1869, Wyoming was the first state or territory to grant women's suffrage. It preserved women's suffrage in its Constitution and became the first state to do so when it was admitted to the Union in 1890.

Women could vote in only ( 20 ) states when the 19th Amendment was ratified on this date in 1920 after ( 72 ) years of grass-roots efforts, coalitions, referenda, and court cases.

It would be another ( 64 ) years before all of the states ratified the amendment, with Mississippi being the last in 1984.