1. Statehood Anniversaries - September 27 marks the anniversary of two important milestones in Oklahoma's statehood history. In 1906, President Theodore Roosevelt declared Oklahoma a state, and in 1988, Congress passed a bill designating September 27 as Oklahoma's statehood day.

2. National Parks - Oklahoma is home to three national parks, two of which were established on September 27. In 2000, the Chickasaw National Recreation Area was redesignated as the Chickasaw National Recreation Area, and in 1976, the eastern portion of the Oklahoma City National Memorial was designated as the Washita Battlefield National Historic Site.

3. Sports Legends - September 27 is the birthday of two prominent Oklahoma sports legends. Barry Switzer, former head coach of the Oklahoma Sooners football team, was born on this day in 1937. And Sam Bradford, former Oklahoma Sooners quarterback and NFL quarterback for several teams, was also born on September 27, in 1987.

4. Labor History - In 1921, September 27 marked a significant day for Oklahoma's labor movement. On that day, the Oklahoma State Federation of Labor held its annual convention in Tulsa, where they voted to support striking police officers and publicly opposed the Ku Klux Klan's influence on the city's law enforcement.

5. Oil and Gas - September 27, 1911, was the day Oklahoma's first oil well was completed. Located near Bartlesville, the well was a significant discovery that helped launch Oklahoma's oil and gas industry, which continues to be a critical sector of the state's economy.