1. Tennessee became the 16th state to join the Union on February 11, 1796. This day marks an important milestone in Tennessee's history as it gained statehood and became a part of the United States.

2. The Battle of Fort Donelson began on February 11, 1862. This was a significant battle in the American Civil War, as it was the first major Union victory in the West and it opened the way for Union General Ulysses S. Grant to advance further south.

3. In 1928, Tennessee recorded its lowest temperature ever, with a frigid -32°F (-36°C) in Mountain City. This is the state's coldest recorded temperature and it occurred on February 11.

4. On February 11, 1932, Tennessee's state capitol building was dedicated in Nashville. The building was designed in the Greek Revival style and is one of the most distinctive landmarks in the city.

5. In 2015, a massive explosion occurred at a chemical plant in Gallatin, Tennessee, on February 11. The blast resulted in the death of one worker and injured several others. The incident underscored the importance of safety measures in industrial settings and prompted an investigation into the cause of the explosion.