1. On August 5, 1861, Ohio Governor William Dennison Jr. issued a call for 50,000 volunteers for the Union Army in response to the outbreak of the Civil War. Ohio would go on to provide over 300,000 soldiers for the war effort.

2. The Ohio State Fair has a long history with August 5. The first Ohio State Fair was held on this day in 1850 in Cincinnati, attracting over 50,000 visitors. Today, the Ohio State Fair is still held in August and is one of the largest state fairs in the country.

3. August 5, 1893, is known as "Black Sunday" in Ohio history. A series of tornadoes struck the state, killing 71 people and causing significant damage to property. The devastation led to the Ohio General Assembly establishing the Ohio National Guard to provide disaster relief and protect the state in times of emergency.

4. The legendary aviator and inventor, Orville Wright, was born on August 5, 1871, in Dayton, Ohio. Along with his brother Wilbur, the Wright Brothers developed and flew the world's first successful airplane in 1903. Their achievements paved the way for modern aviation.

5. August 5, 1974, marked the beginning of the end of the presidency of Richard Nixon, who resigned from office after the Watergate scandal. Ohio's own William Saxbe, who had served as U.S. Attorney General under Nixon, was appointed as Nixon's successor, serving as Secretary of State for just under a year.