1. On December 13, 1907, Oklahoma was admitted as the 46th state in the United States. It became the first state formed from Indian Territory and Oklahoma Territory.

2. In 1982, a magnitude 5.0 earthquake struck near El Reno, Oklahoma on December 13. This was one of the strongest earthquakes to hit the state at the time and caused minor damage.

3. On December 13, 1937, a disastrous dust storm engulfed Oklahoma and other Great Plains states, causing widespread damage to homes, farms, and infrastructure. It became known as "Black Sunday" and is considered one of the worst environmental disasters in American history.

4. The Oklahoma City Thunder, a professional basketball team, played their first game in Oklahoma City on December 13, 2008. The team had relocated from Seattle and became a beloved sports franchise in the state.

5. On December 13, 1950, the University of Oklahoma's football team won the Orange Bowl championship game against the University of Maryland. This was the first bowl game win for the Sooners and helped establish the university as a football powerhouse in the coming decades.