_________ is the amendment guaranteed that all women in the united states would have the right to vote.

The 19th Amendment to the United States Constitution guaranteed that all women would have the right to vote. Ratified on August 18, 1920, it states that the right of citizens to vote "shall not be denied or abridged by the United States or by any State on account of sex."

Extra: The struggle for women's suffrage, also known as the women's rights movement, began in earnest in the mid-19th century. Activists like Susan B. Anthony, Elizabeth Cady Stanton, and many others fought tirelessly for the right of women to participate in the electoral process on an equal basis with men. Before the passage of the 19th Amendment, women's voting rights varied widely across different states; some western territories and states were more progressive, allowing women to vote in local and state elections, while others did not grant them this right at all. After decades of advocacy, protests, and civil disobedience, the amendment was passed by Congress in 1919 and then ratified by the necessary three-fourths of the states the following year. The 19th Amendment was a significant victory for the women's suffrage movement and marked a turning point in the history of civil rights in the United States, although it's important to note that many women of color continued to face barriers to voting for years to come.