1. In 1816, Indiana was the 19th state admitted to the United States. It was the first state to be created from the Northwest Territory.

2. On January 15, 1889, the first concrete pavement was laid in the United States, in Bellefontaine, Ohio. This innovative technology was quickly adopted in Indiana and paved the way for modern road construction.

3. The foundation of Indiana's largest university, Indiana University, can be traced back to January 15, 1820. The university was established as the Indiana State Seminary and enrolled its first student in 1825.

4. The Indianapolis Motor Speedway, one of the most famous racetracks in the world, opened its doors on January 15, 1909. The first race held at the speedway was an aviation competition, followed by the first Indianapolis 500 in 1911.

5. On January 15, 1976, the film "The Bad News Bears" premiered in theaters. While not directly related to Indiana history, the film's popularity helped contribute to the rise of Little League baseball in the state and across the country.