Which amendment granted women the right to vote?

The 19th Amendment to the United States Constitution is the amendment that granted women the right to vote. Ratified in 1920, this amendment prohibits any United States citizen from being denied the right to vote on the basis of sex, thus ensuring that women's suffrage was recognized legally.

The significance of this amendment is rooted in the broader women's rights movement, which advocates for gender equality and the right for women to participate fully in the democratic process. The achievement of the 19th Amendment was the result of decades of activism and advocacy by women who fought for their political rights.

In contrast, the other amendments mentioned do not relate to women's voting rights. The 15th Amendment addresses voting rights but focuses on prohibiting the denial of the right to vote based on race, color, or prior condition of servitude. The 20th Amendment pertains to the terms of elected officials and the start of their terms, while the 18th Amendment established the prohibition of alcohol and is unrelated to voting rights entirely.