1. In 1908, the University of Tulsa was founded. Originally known as Henry Kendall College, it was named after the Methodist missionary who established a boarding school for Creek Nation children in the area.

2. On September 15, 1910, the Oklahoma State Capitol building was dedicated in Oklahoma City. The building, which was designed by architect Solomon Andrew Layton, took seven years to construct and cost $1.5 million to build.

3. In 1983, bandleader Leon Russell was inducted into the Oklahoma Music Hall of Fame. Born in Lawton, Oklahoma, Russell was a prolific songwriter and producer who worked with artists such as Bob Dylan, Elton John, and the Rolling Stones.

4. In 1963, the University of Oklahoma's football team was ranked number one in the nation in the Associated Press poll. The team went on to win the Orange Bowl against the University of Alabama, finishing the season with an 11-0 record.

5. On September 15, 1928, the St. Francis Dam in California failed, causing a massive flood that killed more than 400 people. Among those who perished in the disaster were several Oklahomans who had relocated to California. The tragedy had a lasting impact on the state and led to the development of stricter safety regulations for dam construction.