1. On September 5, 1910, the first airplane flight in Oklahoma took place in Guthrie. Pilot Calbraith P. Rodgers flew a Wright Model EX airplane, completing a distance of 2,230 feet in just over 17 seconds.

2. On September 5, 1921, Tulsa experienced one of the deadliest incidents of racial violence in American history. The Tulsa Race Massacre, also known as the Tulsa Race Riot, resulted in the deaths of hundreds of African Americans and the destruction of a thriving Greenwood district.

3. In 1950, September 5 was declared "Will Rogers Day" in Oklahoma in honor of the famous humorist and actor who was born in Indian Territory (now part of Oklahoma) in 1879. Will Rogers was known for his wit and social commentary, and he became a beloved figure in Oklahoma and beyond.

4. On September 5, 1983, a group of inmates at the Oklahoma State Penitentiary in McAlester took hostages and set fires in a riot that lasted for several days. The incident, which resulted in several deaths and extensive damage to the prison, was one of the largest in American history.

5. September 5 is also the birthday of several notable Oklahomans, including country music legend Bob Wills (born in 1905), astronaut Shannon Lucid (born in 1943), and former NBA player and coach Scott Brooks (born in 1965).