Which U.S. amendment granted women the right to vote?

The 19th Amendment to the United States Constitution, ratified in 1920, granted women the legal right to vote, marking a significant milestone in the women's suffrage movement. The amendment states: "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." This was the culmination of decades of activism and advocacy by women and their allies who fought for equality and representation in the political sphere.

While the 15th Amendment prohibits denying the right to vote based on race, and the 24th Amendment outlaws poll taxes in federal elections, neither addresses gender. The 21st Amendment, which repealed Prohibition, is unrelated to voting rights. Thus, the 19th Amendment is the specific constitutional change that ensured voting rights for women in the United States.