1. In 1788, Ohio's first constitution was adopted at the first constitutional convention in Marietta, Ohio. This document outlined the state's government structure and fundamental rights of citizens.

2. The Ohio State University was founded on July 26, 1870, in Columbus, Ohio. The university is now one of the largest and most prestigious institutions of higher learning in the United States.

3. On July 26, 1908, the Wright Brothers made their first public flight in Ohio at a demonstration for the U.S. Army Signal Corps at what is now Huffman Prairie Flying Field near Dayton.

4. The notorious outlaw John Dillinger was shot and killed by FBI agents on July 26, 1934, in front of the Biograph Theater in Chicago after a nationwide manhunt. Dillinger was born and raised in Indiana, but he committed several crimes in Ohio and was known to frequent the state.

5. In 2005, Ohio became the first state to adopt a comprehensive smoke-free workplace law, known as the Ohio Smoke-Free Workplace Act. The law prohibits smoking in all public places and places of employment, including bars and restaurants.