Why do you think women won the right to vote in 1920, after earlier efforts had failed?

this is opinion based so just write what you think, or if there is back ground info write that down ¨in your own words¨.

Women vote around 1917 in New York. Some states had the right to vote before the 19th Amendment. Carrie Chapman Catt and suffragettes had convinced President Woodrow Wilson and other political leaders that women had the right to vote ... The Nineteenth Amendment was signed on August 26, 1920.