Oklahoma State University was founded on Christmas day, 1890, and has grown to become one of America’s premier land-grant universities. In fact, OSU is the only university with a statewide presence in all 77 Oklahoma counties through the Oklahoma Cooperative Extension Service. Not only does OSU's presence improve the lives of Stillwater residents and visitors, their commitment to exceptional teaching, research, and outreach impacts our state and nation. Find campus listings, links to the OSU Alumni Association, OSU Athletics and event highlights. Discover and experience America's Brightest Orange!