1. The first Ohio State Fair was held on April 21, 1850, in Cincinnati. It featured a variety of agricultural exhibits and competitions, and paved the way for Ohio to become a leader in the national fair circuit.

2. In 1966, Ohio Governor James Rhodes declared April 21 to be John Glenn Day, in honor of the astronaut's historic orbit around the earth earlier that year. Glenn grew up in Ohio and later served four terms as a U.S. Senator from the state.

3. On April 21, 1865, a train carrying the body of assassinated President Abraham Lincoln passed through Ohio on its way from Washington, D.C. to his final resting place in Springfield, Illinois. Thousands of people lined the tracks to pay their respects.

4. The Ohio Historical Society was founded on April 21, 1885, with the goal of preserving and sharing Ohio's rich history and heritage. Today, the organization is known as the Ohio History Connection and operates a variety of museums, archives, and educational programs throughout the state.

5. On April 21, 1932, the classic gangster film "Scarface" premiered at the Ohio Theatre in Columbus. The movie, which starred Paul Muni and was directed by Howard Hawks, has since become a cult classic and influenced numerous other films in the crime genre.