1. In 1861, Ohio Governor William Dennison Jr. issued a proclamation directing the Ohio militia to report for duty to protect the federal government in Washington, D.C. This move was in response to the growing tensions leading up to the start of the American Civil War.

2. On January 19, 1915, the Cincinnati Zoo welcomed a new resident: a baby orangutan named Ahmun. Ahmun was notable for being the first orangutan born in captivity in any zoo in the United States.

3. In 1937, the Ohio River flooded, causing widespread damage and loss of life in several states. The flood began on January 19 and lasted for several weeks, devastating communities along the river and prompting a major national response effort.

4. On January 19, 1946, Ohio State University defeated the University of California in the Rose Bowl, earning the Buckeyes their first-ever national championship in college football. The team was led by legendary coach Paul Brown.

5. In 1960, the Cleveland Browns won their third NFL championship, defeating the Philadelphia Eagles in the NFL Championship Game. The Browns were led by quarterback and future Hall of Famer Otto Graham, who retired after the game.