Women's Suffrage: How America Won the 19th Amendment

On August 18, 1920, the Tennessee state legislature voted on the 19th Amendment by a single vote. A 24-year-old representative named Harry Burn had planned to vote against it — until he read a letter from his mother, tucked in his pocket, urging him to vote for ratification. He changed his vote. Tennessee became the 36th state to ratify, the amendment became law, and American women won the right to vote nationwide. One letter, one vote, and a 72-year fight was over.

The fight for women’s suffrage was one of the longest political struggles in American history. It began in 1848, when a group of women and men met in Seneca Falls, New York, and declared that women were entitled to the same rights as men — including the vote. It ended in 1920 with a constitutional amendment. In between came decades of organizing, marching, protesting, imprisonment, and a movement that split, reunited, and reinvented itself again and again. This is the story of how American women won the ballot.

Seneca Falls: Where It Started

The first women’s rights convention in the United States was held in Seneca Falls, New York, on July 19 and 20, 1848. It was organized by Elizabeth Cady Stanton and Lucretia Mott, two abolitionists who had been barred from participating fully in an anti-slavery convention in London in 1840 because they were women. Stanton drafted the Declaration of Sentiments, modeled on the Declaration of Independence, which listed the ways American law treated women as second-class citizens: they could not vote, could not own property in most states, could not keep their own wages, and had no legal rights over their children.

The most controversial demand in the document was the vote. Even some of the convention’s supporters thought demanding suffrage was too radical and would make the movement look ridiculous. Frederick Douglass, the great abolitionist, spoke in favor of it, and the resolution passed — narrowly. About 300 people attended the convention, and roughly 100 signed the declaration. The press mocked it. Ministers denounced it. But the idea was out, and it did not go back in.

For the next two decades, the suffrage movement grew alongside the abolition movement, and the two causes shared organizers, meetings, and arguments. Then the Civil War split them apart.

The Split That Divided the Movement

After the Civil War, Congress passed the 14th Amendment in 1868, defining citizenship, and the 15th Amendment in 1870, barring states from denying the vote on the basis of race. Neither mentioned women. In fact, the 14th Amendment was the first to put the word “male” into the Constitution, defining voters as male citizens. Suffragists felt betrayed. They had fought for abolition and expected the vote to follow. Instead, they were told to wait.

The movement split in 1869 into two rival organizations. Stanton and Susan B. Anthony formed the National Woman Suffrage Association, which pushed for a federal constitutional amendment and took on a wide range of women’s rights issues. Lucy Stone and Henry Blackwell formed the American Woman Suffrage Association, which worked state by state and focused narrowly on the vote. The two groups did not reconcile for 21 years, until they merged in 1890 into the National American Woman Suffrage Association (NAWSA).

The state-by-state strategy produced slow but real results. Wyoming Territory granted women the vote in 1869 — the first place in the nation to do so — and kept it when Wyoming became a state in 1890. Colorado followed in 1893, Utah and Idaho in 1896, Washington in 1910, California in 1911, and several more states in the 1910s. By 1919, 15 states allowed women to vote in most elections. But the federal amendment was still the goal, because state victories alone left most American women without the vote.

The New Generation: Parades, Pickets, and Prison

In the 1910s, a younger, more militant generation changed the movement’s tactics. Alice Paul, who had studied in England and marched with the British suffragettes, brought confrontational methods to America. In 1913, she organized a massive suffrage parade in Washington on the day before Woodrow Wilson’s inauguration — 5,000 marchers, watched by crowds of thousands, attacked by onlookers while police stood by. The violence made national news, and the movement had its martyr moment.

Paul broke with NAWSA in 1916 and formed the National Woman’s Party, which focused single-mindedly on the federal amendment. In 1917, her supporters began picketing the White House — the first people ever to picket a president — standing silently outside the gates with banners asking Wilson how long women must wait for liberty. The pickets were arrested, jailed, and force-fed when they went on hunger strikes. The “Night of Terror” in November 1917, when guards at the Occoquan Workhouse beat and abused imprisoned suffragists, shocked the country and turned public opinion.

Meanwhile, NAWSA under Carrie Chapman Catt pursued the “Winning Plan”: a coordinated campaign combining state referendums with federal lobbying. Catt’s organization was the largest and best-funded, with millions of members by the end of the decade. The two wings disagreed bitterly about tactics, but together they were unstoppable. The militants created pressure; the mainstream organization turned that pressure into votes.

The Final Vote: One Letter From a Mother

World War I changed the politics. Women had worked in factories, served as nurses, and kept the country running while men fought. The argument that women were unfit for public life collapsed. President Wilson, who had long opposed a federal amendment, reversed himself in 1918 and urged Congress to pass it as a war measure. The House passed the amendment in 1918 and again in 1919. The Senate finally passed it on June 4, 1919, by a vote of 56 to 25.

Ratification required 36 states. By the summer of 1920, 35 had ratified, and Tennessee was the battleground. The state legislature was tied, and the deciding vote belonged to Harry Burn, the youngest member of the Tennessee House. Burn had worn a red rose — the anti-suffrage symbol — and everyone expected him to vote no. But he carried a letter from his mother, Phoebe Ensminger Burn, who wrote: “Hurrah and vote for suffrage.” On August 18, 1920, Burn voted yes. The amendment was ratified by a single vote in a single state, and on August 26, 1920, it was certified as the 19th Amendment to the Constitution: “The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of sex.”

What the 19th Amendment Did — and Did Not — Do

The 19th Amendment was a landmark, but it did not give every American woman the vote. Black women in the South faced the same poll taxes, literacy tests, and violence that kept Black men from voting, and many could not vote freely until the Voting Rights Act of 1965. Native American women were not recognized as citizens until 1924. Asian immigrant women could not become citizens at all until immigration laws changed in the 1950s. The amendment removed sex as a legal barrier to voting, but race, citizenship, and state law still blocked millions of women for decades more.

That does not diminish what the suffragists achieved. They won a constitutional right that had been denied for 130 years, through a movement that lasted three generations. Stanton died in 1902, eighteen years before the amendment passed. Anthony died in 1906, telling friends, “Failure is impossible.” They never saw the vote they fought for. The women who did see it — the marchers, the picketers, the prisoners of 1917 — had inherited a cause their grandmothers started and finished it in their own lifetimes.

The lesson of the suffrage movement is not that change comes quickly. It is that change comes to people who refuse to stop. Seventy-two years, two rival organizations, a split, a reunion, a world war, and a letter from a mother in Tennessee. That is how American women won the vote.

Frequently Asked Questions

When did women get the right to vote in America?
The 19th Amendment was ratified on August 18, 1920, and certified on August 26, 1920. It barred the federal government and the states from denying the vote on the basis of sex.

What was the Seneca Falls Convention?
The first women’s rights convention in the United States, held in Seneca Falls, New York, on July 19–20, 1848. Organized by Elizabeth Cady Stanton and Lucretia Mott, it produced the Declaration of Sentiments, which demanded equal rights for women including the vote.

Who was Susan B. Anthony?
One of the movement’s most important leaders, who organized, lectured, and campaigned for suffrage for more than 50 years. She was arrested in 1872 for voting illegally in Rochester, New York, and fined for it. She died in 1906, fourteen years before the 19th Amendment passed.

What was the Night of Terror?
On November 14, 1917, guards at the Occoquan Workhouse in Virginia beat and abused suffragists imprisoned for picketing the White House. The violence shocked the public and helped turn opinion in favor of the amendment.

Which state cast the deciding vote for the 19th Amendment?
Tennessee. On August 18, 1920, Representative Harry Burn changed his vote after reading a letter from his mother urging him to support suffrage, making Tennessee the 36th state to ratify.

Did the 19th Amendment give all women the vote?
Not in practice. Black women in the South still faced poll taxes, literacy tests, and violence, and many could not vote freely until the Voting Rights Act of 1965. Native American and Asian immigrant women also faced citizenship barriers for years after 1920.