Final answer:
Jeannette Rankin of Montana was the first woman elected to Congress in 1917.
Step-by-step explanation:
The first woman was elected to Congress in 1917. Jeannette Rankin of Montana became the first woman to be elected to the nation's Congress. Prior to that, some states had granted suffrage for women in state and local elections, such as Wyoming in 1869, Colorado in 1893, Utah in 1896, and Idaho in 1896.