1. Indiana became a state on December 11, 1816, but on December 10, 1815, Indiana's territorial legislature approved a petition to become a state, which set in motion the process of statehood.

2. On December 10, 1856, the first train arrived in Indianapolis on the new Indianapolis and Cincinnati Railroad. The railroad greatly improved transportation in the state and facilitated economic development.

3. The famous playwright Eugene O'Neill premiered his play "The Emperor Jones" at the Shubert Theater in Indianapolis on December 10, 1920.

4. On December 10, 1967, the town of Santa Claus, Indiana, officially declared itself to be "America's Christmas Hometown." The town is named after the legendary figure of Santa Claus and is a popular tourist destination during the holiday season.

5. The Indianapolis Colts defeated the Baltimore Ravens 15-6 on December 10, 2006, to secure their first AFC South title since moving to Indianapolis in 1984. The Colts went on to win the Super Bowl that season.