As an AI language model, I do not have personal opinions, but I can present to you five interesting facts about September 27 in Tennessee history:

1. On September 27, 1825, the Marquis de Lafayette visited Nashville, Tennessee, as part of his tour of the United States. His visit was celebrated with parades and dinners and was a significant event for the young city.

2. In 1907, the iconic Ryman Auditorium opened its doors for the first time in Nashville. Originally built as a tabernacle, the Ryman became most famous as the home of the Grand Ole Opry and continues to be a beloved concert venue today.

3. On September 27, 1968, the first African-American female mayor in Tennessee was elected. Mary Edith Prayther became the mayor of Castalian Springs, a small town in Sumner County.

4. The Battle of Matamoros, also known as the Battle of Monterey, took place on September 27, 1846, during the Mexican-American War. Tennessee troops played a significant role in the battle, which resulted in a United States victory.

5. On September 27, 1950, future country music legend Patsy Cline made her professional debut at the Grand Ole Opry in Nashville. Cline went on to become one of the most influential and beloved country singers of all time.