1. The Burning of Zanesville (1812) - During the War of 1812, British forces, along with their Native American allies, attacked and burned the town of Zanesville in southeastern Ohio. Over 20 homes and businesses were destroyed, but no lives were lost.

2. Great Flood of 1861 - Ohio experienced one of its worst floods on September 1, 1861. Heavy rain and overflowing rivers caused widespread damages throughout the state. The flood claimed at least 21 lives and caused millions of dollars in damages.

3. The Ohio State University opens (1873) - The Ohio Agricultural and Mechanical College, later renamed The Ohio State University, opened its doors on September 1, 1873. The university initially focused on agriculture and mechanics, but has since grown into one of the largest universities in the country.

4. Cincinnati Union Terminal opens (1933) - The Cincinnati Union Terminal, a train station and iconic Art Deco masterpiece, was opened to the public on September 1, 1933. The terminal served as a major transportation hub for the city until the decline of rail travel in the latter half of the 20th century.

5. Wright Brothers' Flying School moves to Dayton (1910) - After spending several years teaching at a flying school in Montgomery, Alabama, the Wright brothers moved their flying school to Huffman Prairie in Dayton, Ohio on September 1, 1910. It was here that they continued to refine their aircraft designs and teach others to fly.