1. Oklahoma becomes the 46th state: On December 9, 1907, Oklahoma officially became the 46th state of the United States of America. After nearly two decades of territorial status, Oklahoma solidified its position as a state within the union.

2. Oklahoma City bombing verdict announced: On December 9, 1997, Timothy McVeigh was found guilty of the Oklahoma City bombing that occurred on April 19, 1995. The bombing left 168 people dead and over 680 others injured.

3. NBA comes to Oklahoma City: On December 9, 2004, the NBA officially announced that the Seattle SuperSonics were relocating to Oklahoma City. The team would later become known as the Oklahoma City Thunder and enjoy tremendous success, reaching the NBA Finals in 2012.

4. Oklahoma State University plane crash: On December 9, 2001, a plane carrying members of the Oklahoma State University basketball team crashed in Colorado, killing all 10 people on board. The tragedy shook the OSU community and garnered national attention.

5. Sooner Schooner accident: On December 9, 2019, during the Oklahoma Sooners' football game against the Baylor Bears, the Sooner Schooner, a beloved symbol of the university, overturned while making a turn on the field. No one was seriously injured, but the incident made headlines across the sports world.