1. In 1792, the town of Marietta was officially incorporated, making it the first settlement in what would become the state of Ohio.

2. On April 2, 1831, the state legislature passed an act to establish the Ohio School for the Deaf, making it one of the first schools for the deaf in the United States.

3. In 1917, the Ohio State Highway Patrol was established as a division of the state police, becoming the first state police agency in the United States to use automobiles for patrol duties.

4. On April 2, 1971, baseball legend Jackie Robinson, who broke the color barrier in Major League Baseball, spoke at Ohio State University in Columbus about civil rights and racial equality.

5. In 2019, Ohio Governor Mike DeWine signed into law a bill that raised the state's smoking age to 21, making Ohio the 18th state in the country to do so. The law took effect on October 1, 2019.