Oklahoma Statehood Day is celebrated on November 16 each year, marking the day in 1907 when Oklahoma became the 46th state of the United States. This event followed a long history of Native American tribes, settlers, and land runs that shaped the region. The day is recognized with various events and activities across the state, including educational programs and community gatherings. It serves as a reminder of Oklahoma's rich cultural heritage and the diverse groups that contributed to its development as a state.