1. In 1800, Andrew Johnson, the 17th President of the United States, was born in Raleigh, North Carolina. He moved to Tennessee as a young boy and later became the state's military governor during the Civil War.

2. On May 15, 1820, James K. Polk, the 11th President of the United States, arrived in Nashville, Tennessee, to begin his political career in the state legislature.

3. The first organized baseball game in Tennessee was played on May 15, 1867, in Nashville's Sulphur Dell ballpark. The Tennessee Volunteer Base Ball Club played the Nashville Club, resulting in a tie score of 16-16.

4. The Tennessee Valley Authority (TVA) was established on May 15, 1933, by President Franklin D. Roosevelt as part of the New Deal program. The TVA was created to provide flood control, power generation, and economic development in the Tennessee Valley region.

5. On May 15, 1960, the Woolworth's department store in Nashville became the site of a peaceful protest against segregation. African American college students sat at the store's whites-only lunch counter, sparking a nationwide movement that helped end segregation in American public facilities.