1. In 1937, Oklahoma experienced one of its worst floods in history, with waters rising up to 11 feet in some areas. Many homes and businesses were destroyed, and dozens of lives were lost. This flood was so severe that the federal government declared Oklahoma a disaster area.

2. On January 19, 1975, the Oklahoma Sooners football team won their fifth national championship, defeating the Michigan Wolverines 14-6 in the Orange Bowl. This victory cemented the Sooners' place as one of college football's most successful programs.

3. In 2007, the Oklahoma City Thunder's predecessor, the Seattle Supersonics, played their first game in Oklahoma City. Although the team would eventually move to Oklahoma City permanently, this initial game was a sign of the city's growing interest in professional basketball.

4. On January 19, 1896, Oklahoma Governor William "Alfalfa Bill" Murray took office, beginning a tumultuous and controversial tenure that would last three years. Murray was known for his populist policies, including free textbooks for students and a cap on railroad rates, but he was also criticized for his personal behavior and authoritarian style.

5. On January 19, 1972, Oklahoma State University basketball star Henry Iba won his 700th career game, making him one of the winningest coaches in NCAA history. Iba would go on to win two national championships with the OSU Cowboys, and he is still remembered as one of the greatest coaches in college basketball history.