1. The Ohio State University was founded on August 10, 1870, as the Ohio Agricultural and Mechanical College. The university is now one of the largest in the United States and is known for its prestigious academic programs.

2. On August 10, 1933, a historic prison break occurred at the Ohio Penitentiary in Columbus. More than two dozen inmates broke out of their cells and started a riot that lasted for several hours before being brought under control.

3. The deadliest tornado in Ohio history struck the state on August 10, 1925. The storm, which was part of an outbreak that hit several states in the Midwest, killed 77 people and caused millions of dollars in damages.

4. The Cleveland Indians played their first game at Cleveland Municipal Stadium on August 10, 1931. The stadium would go on to be the team's home for more than 60 years before being replaced by Progressive Field.

5. The first legal same-sex marriage in Ohio was performed on August 10, 2010. The couple, John Arthur and James Obergefell, traveled to Maryland to get married because same-sex marriage was not yet legal in Ohio. Arthur was terminally ill at the time and the couple sued the state of Ohio for recognition of their marriage. The case eventually went to the Supreme Court and resulted in the landmark decision to legalize same-sex marriage across the United States.