1. On March 12, 1929, the city of Tulsa experienced a magnitude 3.7 earthquake, which caused minor damage to buildings and rattled residents.

2. Oklahoma State University celebrated its first-ever homecoming on March 12, 1915, with a parade, dance, and football game against Trinity University.

3. The University of Central Oklahoma was founded on March 12, 1890, as the Territorial Normal School in Edmond, Oklahoma. It later became the Oklahoma State University College of Education before being renamed in 1971.

4. In 1945, Ada Lois Sipuel Fisher became the first African American student admitted to the University of Oklahoma College of Law on March 12, following a lengthy legal battle. She went on to graduate with honors and became a civil rights leader in the state.

5. On March 12, 2006, a tornado outbreak swept through central and eastern Oklahoma, damaging or destroying more than 100 homes and injuring 12 people. One of the tornadoes reached EF2 intensity, with winds of up to 135 mph.