Women's suffrage in the United States

Women's suffrage, or the right of women to vote, was established in the United States over the course of the late 19th and early 20th centuries, first in various states and localities, then nationally in 1920 with the ratification of the 19th Amendment to the United States Constitution. The demand for women's suffrage began to gather strength in the 1840s, emerging from the broader movement for women's rights.

Source: Wikipedia — Women's suffrage in the United States (CC BY-SA 4.0)