1. In 1901, the first oil well in the state of Oklahoma was struck in the town of Bartlesville. This discovery would lead to the development of the oil industry in Oklahoma, which would become one of the state's major economic drivers.

2. On May 22, 1921, the deadliest race riot in American history broke out in Tulsa, Oklahoma. The violence resulted in the deaths of hundreds of African American residents, the destruction of the city's prosperous Black Wall Street neighborhood, and the displacement of thousands of Black residents.

3. In 1969, the Oklahoma state legislature designated the state wildflower as Indian Blanket (Gaillardia pulchella), a plant species native to the region. The wildflower blooms from May to October and is often seen along highways and in prairies throughout the state.

4. In 1993, the Oklahoma City Zoo opened the Children's Zoo, which features interactive exhibits and animal encounters. The Children's Zoo includes a petting zoo, a butterfly garden, and a barnyard area with ponies, cows, and goats.

5. The Oklahoma Aquarium, located in Jenks, opened to the public on May 22, 2003. The aquarium features more than 8,000 aquatic animals, including sharks, sea turtles, and jellyfish, and has educational exhibits and programs for all ages.