1. On August 19, 1861, Confederate General Leonidas Polk established "Camp Boone" in Clarksville, Tennessee, which became a significant military training ground for the Confederacy during the Civil War.

2. On August 19, 1920, Tennessee became the 36th state to ratify the 19th Amendment to the US Constitution, granting women the right to vote. The ratification was a crucial moment in the fight for women's suffrage in the US, and Tennessee is known as the "Perfect 36" for its crucial role in securing the amendment's passage.

3. On August 19, 1955, Memphis DJ Dewey Phillips played "Rock Around the Clock" by Bill Haley and His Comets on his popular radio show, making it the first rock and roll song to be played on mainstream radio. The song's popularity spread quickly, and it became an anthem for the emerging youth culture of the 1950s.

4. On August 19, 1998, the Tennessee Titans (then known as the Tennessee Oilers) played their first game in the state after relocating from Houston. The team played at Vanderbilt Stadium in Nashville until their new stadium, Nissan Stadium, was completed in 1999.

5. On August 19, 2004, the Tennessee Titans retired the jersey number of legendary quarterback Steve McNair during a ceremony before a preseason game. McNair played for the Titans (and their predecessor, the Houston Oilers) from 1995 to 2005, leading the team to its only Super Bowl appearance in the 1999 season.