1. In 1913, the Indianapolis 500 was held on May 28 for the first time. This iconic motorsport event has since become a Memorial Day weekend tradition and a staple of Indiana culture.

2. On May 28, 1925, Indiana's notorious Ku Klux Klan violently attacked a Catholic service in South Bend, leading to the deaths of two people. The incident signaled the beginning of a long and tumultuous battle between the Klan and Indiana's Catholic community.

3. May 28, 1937 marked the tragic sinking of the steamship S.S. Mohawk off the coast of Indiana Dunes. The ship was carrying 68 passengers and crew members, and only ten survived. Today, the wreckage is a popular dive site for adventurous scuba divers.

4. In 1944, Indiana's Camp Atterbury was designated as a prisoner-of-war camp for German soldiers. Over the course of the war, the camp held tens of thousands of captives, many of whom were put to work in Indiana's agricultural industry.

5. On May 28, 1961, Indiana University student Roger D. Branigin became the first person to receive a Master's degree in Political Science from the school. Branigin would go on to become the Governor of Indiana from 1965 to 1969, leaving a lasting legacy on the state's political landscape.