Which amendment granted women the right to vote?

The 19th Amendment is the amendment that granted women the right to vote in the United States. Ratified on August 18, 1920, this 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 represented a significant milestone in the women's suffrage movement, which sought to secure equal voting rights for women.

In contrast, the 15th Amendment, ratified in 1870, addresses the voting rights of male citizens regardless of race, color, or previous condition of servitude but does not mention gender. The 24th Amendment, ratified in 1964, prohibits poll taxes in federal elections, and while it pertains to voting rights, it does not specifically address women's suffrage. Finally, the 26th Amendment, ratified in 1971, lowers the voting age to 18 years but is unrelated to women’s right to vote.

Thus, the 19th Amendment is crucial in understanding the legal foundation for women's suffrage in the United States.