1. In 1865, Ohio became the first state to ratify the 13th Amendment to the United States Constitution, which officially abolished slavery and involuntary servitude throughout the country.
2. On April 11, 1921, the Ohio State Highway Patrol was formed by an act of the state legislature, making it one of the oldest state law enforcement agencies in the United States.
3. The Ohio State Buckeyes football team played its first spring game on April 11, 1894, defeating a local high school team 40-0.
4. In 1947, John Glenn, an Ohio native and future astronaut, set a transcontinental speed record by flying from California to New York City in just over three hours.
5. The Dayton Peace Accords, which ended the Bosnian War in 1995, were signed on April 11 at Wright-Patterson Air Force Base in Ohio, making it a historic day for global diplomacy.