STILLWATER, Oklahoma, May 10 -- Oklahoma State University posted the following news: * * * OSU celebrates 150th commencement Media Contact: Mack Burke | Associate Director of Media Relations | 405-744-5540 | news@okstate.edu Oklahoma State University celebrated a historic milestone with its 150th commencement ceremonies on May 9-10 inside Gallagher-Iba Arena. The ceremonies marked the first commencement presided over by OSU President Jim Hess, who was named the university's 20th president more PR