1. On February 17, 1915, Oklahoma City celebrated its first ever Air Carnival. The event attracted aviators from across the country to showcase their flying skills, and included aerial stunts, races, and parachute jumps.

2. In 1936, Oklahoma became the first state to establish an independent agency for vocational rehabilitation services. The Oklahoma Department of Rehabilitation Services was established on February 17 of that year, and has since helped thousands of Oklahomans with disabilities to find gainful employment.

3. On February 17, 1963, the Oklahoma City Thunder (then known as the Seattle Supersonics) played their first ever game in the NBA. The team lost to the San Francisco Warriors, 118-124, but went on to achieve great success in the following years, winning the NBA Championship in 1979.

4. In 1972, the Rural Electrification Administration declared that all homes in the United States would have electricity by 1986. Oklahoma played an important role in this effort, as many of its rural communities were among the last in the country to be electrified. On February 17, 1972, the state's Electric Cooperatives of Oklahoma organization pledged to complete the electrification of its service area by the end of the year.

5. On February 17, 2013, a massive winter storm hit Oklahoma, bringing heavy snow and ice to much of the state. The storm caused widespread power outages and travel disruptions, and prompted Oklahoma Governor Mary Fallin to declare a state of emergency. Despite the difficulties, many Oklahomans found creative ways to enjoy the snow, including sledding down the steps of the state capitol building.