1. In 1927, the Indianapolis 500 was held on May 30 due to weather delays. It was the first time the race was not held on May 30, which had become a traditional date for the event.

2. In 1963, the Indiana State Police raided the home of notorious bank robber John Dillinger's girlfriend, Polly Hamilton. They found evidence that led to the arrest of several other members of Dillinger's gang.

3. The first recorded tornado in Indiana's history occurred on May 7, 1820, in Vanderburgh County. It destroyed several homes and barns, but fortunately no one was killed.

4. Indianapolis native Mark Spitz, who would go on to win seven gold medals at the 1972 Summer Olympics, was born on May 10, 1950. His early swimming career began in Indiana, where he won six state championships before heading to college at Indiana University.

5. The Indiana Hoosiers men's basketball team won the NCAA championship on May 7, 1976, capping off an undefeated season with a 86-68 victory over the Michigan Wolverines. It was the last college basketball team to finish the season unbeaten.