1. On September 13, 1863, the Battle of Chattanooga began, which was a pivotal moment in the Civil War. Union forces, led by General William Rosecrans, successfully pushed back the Confederate Army, which allowed them to control the vital railroad junction at Chattanooga.

2. On this day in 1913, Knoxville businessman Cas Walker opened his first grocery store, which eventually grew into a supermarket chain and spurred his success in the entertainment industry as a radio and television personality.

3. In 1975, Tennessee's first National Heritage Area was designated on September 13. Called the Tennessee Overhill Heritage Association, it encompasses 16 counties and showcases the cultural and historical significance of the region, which was once home to the Cherokee Nation.

4. On September 13, 1990, Dolly Parton was inducted into the Country Music Hall of Fame in Nashville. Parton, who is a native of Sevierville, Tennessee, is also known for her philanthropic efforts, including her Imagination Library program, which provides free books to young children.

5. Finally, on this day in 2019, Tennessee Governor Bill Lee announced a $50 million plan to expand STEM education in the state through partnerships with businesses and higher education institutions. The initiative aims to prepare more students for careers in science, technology, engineering, and math.