1. On August 3, 1920, Tennessee became the 36th state to ratify the 19th Amendment to the United States Constitution, granting women the right to vote. This event is known as the "Perfect 36" and Tennessee played a pivotal role in the women's suffrage movement.

2. On August 3, 1864, the Battle of Nashville began during the American Civil War. Union forces, led by General George H. Thomas, defeated Confederate troops led by General John Bell Hood. The battle marked a turning point in the war in the Western Theater.

3. August 3, 1779, marks the day that the Fort Nashborough settlement was established on the Cumberland River. The fort, later renamed Nashville, became the capital of Tennessee and is now a major city in the state.

4. On August 3, 1923, Tennessee Governor Austin Peay signed the Butler Act into law, prohibiting the teaching of evolution in public schools. This led to the infamous Scopes Monkey Trial the following year, where a high school teacher was tried and found guilty of violating the law.

5. August 3, 1960, saw the debut of the first ever color television broadcast in the United States, which was broadcasted from a CBS affiliate in Nashville, Tennessee. This was a major milestone in the history of broadcasting and helped pave the way for the widespread adoption of color television.