On this day in history...
November 21, 1922: Rebecca Felton, 87, becomes the first woman to sit in the Senate, as the interim appointment of the Governor of Georgia. She addressed the Senate the following day, and then the seat is taken by the elected successor, Walter George.
In 1922, Governor Thomas W. Hardwick was a candidate for the next general election to the Senate, when Senator Thomas E. Watson died prematurely. Seeking an appointee who would not be a competitor in the coming special election to fill the vacant seat, and a way to secure the vote of the new women voters alienated by his opposition to the 19th Amendment, Hardwick chose Felton to serve as Senator on October 3, 1922.
Congress was not expected to reconvene until after the election, so the chances were slim that Felton would be formally sworn in as Senator. However, Walter F. George won the special election despite Hardwick’s ploy. Rather than take his seat immediately when the Senate reconvened on November 21, 1922, George allowed Felton to be officially sworn in. This was due in part to persuasion by Felton and a supportive campaign launched by the women of Georgia. Felton thus became the first woman seated in the Senate, and served until George took office on November 22, 1922, one day later.
Read more about Rebecca Felton at Wikipedia.