Which amendment to the U.S. Constitution was passed in 1919, granting women the right to vote?

The amendment passed in 1919 that granted women the right to vote is the 19th Amendment. This significant change in the U.S. Constitution marked the culmination of decades of struggle by women suffragists. The amendment signified a victory for the women’s rights movement, emphasizing the principle of gender equality in participation in the democratic process.

The 15th Amendment, ratified in 1870, prohibits denying a citizen the right to vote based on "race, color, or previous condition of servitude," but it does not address gender. The 18th Amendment, ratified in 1919, is related to the prohibition of alcohol and has no connection to voting rights. The 21st Amendment, ratified in 1933, repealed the 18th Amendment, again unrelated to women's suffrage. The 19th Amendment directly altered the voting landscape by ensuring that women also had the right to vote, thus expanding democracy in the United States.