1. In 1942, the first jeep was produced in Toledo, Ohio. Jeep became an essential vehicle in WWII, and production continued in Toledo for decades after the war.

2. In 1970, the Kent State shootings occurred. Ohio National Guardsmen opened fire on student protesters at Kent State University, killing four and injuring nine others. The incident became a flashpoint in the anti-Vietnam War movement.

3. In 1830, the Ohio legislature authorized the construction of the Ohio and Erie Canal, which connected Lake Erie to the Ohio River. The canal played a crucial role in the state's economic development and is now part of the Ohio and Erie Canalway National Heritage Area.

4. In 1913, the deadliest natural disaster in Ohio's history occurred. A series of severe tornadoes swept through the state, killing 85 people and causing widespread destruction. The event prompted the development of the nation's first state-wide tornado warning system.

5. In 1918, the deadliest flu pandemic in history reached Ohio. The Spanish Flu killed an estimated 10,000 Ohioans and left lasting effects on the state's healthcare system. The pandemic led to the establishment of the Ohio Department of Health and spurred new public health initiatives across the country.