1. In 1913, the Great Dayton Flood began on May 25 and lasted through the following day. The flooding caused by heavy rainfall destroyed much of the city of Dayton and killed more than 360 people.

2. On May 25, 1935, the first night game in Major League Baseball history was played at Cincinnati's Crosley Field between the Reds and the Philadelphia Phillies. The Reds won the game 2-1.

3. In 1986, the Cleveland Cavaliers played their first NBA Finals game in franchise history on May 25 against the Boston Celtics. The game went into double overtime, but the Celtics won 120-106.

4. May 25, 1904 was the birthdate of author and poet Theodore Roethke, who grew up in Saginaw, Michigan but spent much of his writing career in Ohio. Roethke's poems include "My Papa's Waltz" and "North American Sequence."

5. On May 25, 1953, Ohio State University graduate and future astronaut John Glenn flew a supersonic F-100C plane over California, setting a transcontinental speed record by flying from Los Angeles to New York City in just 3 hours and 23 minutes.