1. On February 18, 1935, the Oklahoma State Capitol was completed after four and a half years of construction. The Capitol is topped by a dome made of steel and concrete, and is decorated with a 22-foot statue of a Native American entitled "The Guardian."

2. In 1960, the Tulsa Rifle and Pistol Club hosted the NRA National Indoor Rifle Championship. The competition was held inside a concrete bunker designed to protect the shooters from the tornadoes and severe weather commonly experienced in Oklahoma.

3. Oklahoma State University celebrated its centennial on February 18, 1990. Founded in 1890 as Oklahoma Agricultural and Mechanical College, OSU is now a top-tier research university with over 35,000 students.

4. On February 18, 2014, a powerful winter storm brought heavy snow and ice to Oklahoma. The storm led to widespread power outages and several deaths, and caused over $100 million in damage.

5. In 2019, the Oklahoma City Thunder traded star player Russell Westbrook to the Houston Rockets. Westbrook had spent his entire 11-year NBA career with the Thunder, leading them to the NBA Finals in 2012. His departure marked the end of an era for Oklahoma City basketball.