August 26
19th Amendment Certified for Women's Suffrage
Secretary of State Bainbridge Colby’s quiet certification on August 26, 1920, formally added the 19th Amendment to the Constitution and extended the vote to millions of American women.
Summary
The movement for women's voting rights in the United States gained momentum after decades of activism, with the amendment first proposed in Congress in 1878. After passage by Congress in 1919, ratification required approval by three-fourths of the states. Tennessee provided the decisive 36th ratification on August 18, 1920. Secretary of State Bainbridge Colby certified the amendment on August 26, 1920, formally adding it to the Constitution. The new provision prohibited denial of voting rights on account of sex. Millions of American women gained the franchise overnight, fundamentally altering the electorate.
Context
The campaign for women’s suffrage stretched across generations and took many forms. Beginning in the mid-nineteenth century, advocates organized petitions, lectures, marches, and occasional acts of civil disobedience. An amendment granting women the vote was first introduced in Congress in 1878, though progress remained slow as supporters debated whether to pursue state-by-state victories or a federal change.
What Happened
By 1916 the major suffrage groups had coalesced around a constitutional amendment. New York’s adoption of woman suffrage in 1917 and President Woodrow Wilson’s endorsement the following year strengthened the cause. Congress approved the amendment in June 1919 and sent it to the states.
Aftermath
Tennessee’s narrow ratification on August 18, 1920, supplied the required thirty-sixth state. Official documents reached Washington early on August 26. At eight o’clock that morning, Secretary of State Bainbridge Colby signed the proclamation of certification at his residence in the presence of only his secretary.
Legacy
The new amendment instantly enlarged the electorate and set a precedent for later expansions of voting rights. Full participation for all women, however, remained incomplete for decades as discriminatory state laws continued to disenfranchise many African American and other minority voters.
Why It Matters
Certification of the 19th Amendment doubled the potential voting population and marked a major expansion of democratic participation. It influenced subsequent civil rights legislation and set precedents for gender equality in American law and politics.
Related Questions
When did Congress first propose the 19th Amendment?
An amendment granting women the vote was first introduced in Congress in 1878.
Which state provided the decisive ratification?
Tennessee became the 36th state to ratify on August 18, 1920.
Who certified the amendment?
Secretary of State Bainbridge Colby signed the proclamation on August 26, 1920.
Did the amendment immediately give every woman the vote?
No. Discriminatory state laws continued to block many African American and minority women from voting for decades afterward.
What happened on the day of certification?
Colby signed the document privately at his home; no suffrage leaders were present, and the event went unphotographed.
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America 250 Atlas: 19th Amendment Certified for Women's Suffrage is part of U.S. presidential, constitutional, or national civic history.
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Sources
- 19th Amendment to the U.S. Constitution: Women's Right to Vote, U.S. National Archives. Accessed 2026-07-02.