On May 21, 1919, the House again passes what would become the 19th Amendment, popularly known as the Susan B. Anthony Amendment.

The Senate follows suit on June 4 by a narrow margin (just over the two-thirds requirement), and it goes to the states to be ratified. Ratification requires 36 states, or three-quarters of those in the Union at the time.

The 19th Amendment to the U.S. Constitution, granting women the right to vote, was passed by Congress and sent to the states for ratification.

The women’s suffrage movement was founded in the mid-19th century by women who had become politically active through their work in the abolitionist and temperance movements.

In July 1848, 240 woman suffragists, including Elizabeth Cady Stanton and Lucretia Mott, met in Seneca Falls, New York, to assert the right of women to vote. Female enfranchisement was still largely opposed by most Americans, and the distraction of the North-South conflict and subsequent Civil War precluded further discussion. During the Reconstruction Era, the 15th Amendment was adopted, granting African American men the right to vote, but the Republican-dominated Congress failed to expand its progressive radicalism into the sphere of gender.

Source: history.com