1. On April 10, 1815, the United States Congress officially established the Territory of Alabama, which included parts of modern-day Tennessee. This was during a time of westward expansion and the establishment of new territories and states throughout the United States.

2. In 1865, the Civil War came to an end in Tennessee when Confederate General Joseph E. Johnston surrendered his forces to Union General William T. Sherman at the Bennett House in Durham, North Carolina. This surrender effectively ended the war in the Eastern Theater and paved the way for the eventual reunification of the country.

3. On April 10, 1925, the Tennessee General Assembly passed the Butler Act, which made it illegal to teach evolution in public schools. This law would eventually lead to the famous Scopes Monkey Trial in 1925, which pitted the proponents of evolution against fundamentalists who believed in the literal interpretation of the Bible.

4. The Great Smoky Mountains National Park was established on April 10, 1934. The park spans over 500,000 acres and is home to some of the most beautiful and diverse natural landscapes in the United States, including mountains, forests, waterfalls, and wildlife.

5. On April 10, 1998, the Tennessee Titans (formerly the Houston Oilers) drafted quarterback Steve McNair with the third overall pick in the NFL draft. McNair went on to have a successful career with the Titans, leading them to their first and only Super Bowl appearance in 2000. He was also named the NFL's co-MVP in 2003.