Which amendment to the U.S. Constitution granted women the right to vote in 1920?

The 19th Amendment to the U.S. Constitution is significant as it explicitly granted women the right to vote, marking a crucial milestone in the women's suffrage movement. Ratified on August 18, 1920, this amendment was the result of decades of advocacy and activism by women who fought for equal voting rights. The passage of the 19th Amendment ensured that citizens could not be denied the right to vote based on their sex, thus transforming the political landscape by allowing women to participate fully in the democratic process. The other amendments listed do not pertain to women's voting rights; for instance, the 15th Amendment addresses voting rights regardless of race but predates the women's suffrage movement, while the 21st Amendment repeals Prohibition and the 26th Amendment lowers the voting age to 18. The historical context and societal impact of the 19th Amendment are crucial for understanding its importance in American history.