Britannica
Sources used in this answer
Which state cast the deciding vote to ratify the Nineteenth Amendment?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Nineteenth Amendment
Women casting their votes in New York City, c. 1920s.
Tennessee cast the deciding vote to ratify the Nineteenth Amendment, granting women the right to vote in the United States. The amendment was officially adopted on August 18, 1920, when Tennessee became the 36th state to ratify it by a single vote. This pivotal ratification ensured the amendment's inclusion in the U.S. Constitution. The Nineteenth Amendment states that the right to vote shall not be denied or abridged by the United States or any state on account of sex.123