What action or actions have American women the right to vote?

American women gained the right to vote through the passage of the 19th Amendment to the U.S. Constitution in 1920, which prohibits voting discrimination on the basis of sex. This was the culmination of decades of activism and advocacy by suffragists who fought for women's suffrage. The movement included protests, marches, and lobbying efforts, which ultimately led to this significant legal change, allowing women to participate fully in the democratic process.