Right to vote for U.S. women approved August 1920
"The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of sex. "Congress shall have power to enforce this article by appropriate legislation."The following summer, on August 18, Tennessee became the 36th state to ratify what many referred to as the "Susan B. Anthony federal suffrage amendment."
Click to read full article from August 18, 1920 issue of the Bellingham (Washington) Herald
Eight days later—on August 26—the 19th amendment was certified by U.S. Secretary of State Bainbridge Colby.
Click to read full article from Aug. 26, 1920 issue of the Aberdeen (South Dakota) Daily News
The history of the 19th Amendment can be found at this page on the National Archives website. Also available on the same site is an exhibit on the U.S. Constitution, the Bill of Rights, and all the subsequent amendments.