1. On April 16, 1862, the Battle of Lee's Mills took place in Virginia during the American Civil War. Indiana soldiers participated in this battle as part of the Union Army.

2. The Indiana Dunes National Lakeshore was established on April 16, 1966. This park, located along the southern shore of Lake Michigan, features sandy beaches, dunes, and wetlands.

3. On April 16, 1947, the Indiana General Assembly approved legislation to establish the State Fairgrounds Coliseum in Indianapolis. The Coliseum has since hosted numerous events including concerts, sporting events, and trade shows.

4. The Indiana Pacers played their last game at Market Square Arena on April 16, 1999. The arena, located in downtown Indianapolis, was the home of the Pacers for over 25 years before being demolished in 2001.

5. On April 16, 1929, Indianapolis police arrested notorious gangster John Dillinger at a boarding house. Dillinger was later convicted of murder and bank robbery and became one of the most infamous criminals of the Great Depression era.