1. On March 11, 1910, the Oklahoma state legislature passed a bill establishing the Oklahoma Military Academy in Claremore. The academy, which later became known as Rogers State University, provided military training and education to young men until it was closed in 1971.

2. The town of Tinker, Oklahoma was incorporated on March 11, 1942. The town, located just east of Oklahoma City, was named for General Clarence L. Tinker, a native Oklahoman who was killed in action during World War II.

3. On March 11, 1965, a massive tornado struck the town of Poteau in southeastern Oklahoma, killing 16 people and injuring over 100. The tornado was part of a larger outbreak of severe weather that affected several states in the region.

4. On March 11, 1975, the University of Oklahoma men's basketball team defeated Kansas State 61-60 to win the Big Eight Conference championship. The Sooners went on to reach the NCAA Tournament that year, where they advanced to the Elite Eight.

5. March 11, 2002 marked the opening of the Chesapeake Energy Arena in Oklahoma City. The arena, originally known as the Ford Center, is home to the NBA's Oklahoma City Thunder and has hosted numerous concerts and other events over the years.