1. The Ohio State University was founded on February 28, 1870. The school, originally known as Ohio Agricultural and Mechanical College, was established under the Morrill Act of 1862, which provided land-grant colleges with federal support to teach agriculture, engineering, and military science.

2. On February 28, 1861, the Ohio Statehouse burned down. The building was in the process of being renovated at the time, and the fire destroyed much of the original structure. A new Statehouse was built on the same spot and opened in 1864.

3. The Cleveland Indians baseball team played their first game on February 28, 1901. Originally known as the Cleveland Blues, the team played their first season in the newly formed American League. They have since won two World Series titles and produced many notable players, including Bob Feller, Jim Thome, and Manny Ramirez.

4. On February 28, 1935, a severe tornado outbreak hit Ohio and several other states. The storms killed over 30 people and caused extensive damage to buildings and infrastructure. It remains one of the deadliest tornado outbreaks in Ohio's history.

5. The first African American woman was elected to the Ohio Statehouse on February 28, 1967. Juanita Brent, a Democrat from Cleveland, was elected to the Ohio House of Representatives and served two terms. She later became a Cleveland Municipal Court judge. Her election was a significant milestone for women and minorities in Ohio politics.