1. On July 11, 1930, the city of Tulsa hosted a parade to celebrate the completion of route 66, a highway that connected the east and west coasts of the United States. The parade drew an estimated 75,000 spectators.

2. On July 11, 1958, a high-speed tornado touched down near the town of Chester, Oklahoma. The tornado destroyed numerous buildings and caused several injuries, but no fatalities were reported.

3. The Oklahoma Historical Society was founded on July 11, 1893. The society's mission is to collect, preserve, and share the history of Oklahoma and its people.

4. On July 11, 1985, the state of Oklahoma executed George T. Wilkerson by lethal injection. Wilkerson was convicted of murdering a police officer in 1979.

5. In 2012, the city of Norman, Oklahoma was hit by a strong thunderstorm that caused widespread damage and power outages. The storm was particularly notable for the amount of hail it produced, with some hailstones reportedly measuring up to 4 inches in diameter. The storm caused an estimated $30 million in damage.