The University of Houston is a Tier One public research university located in Houston, Texas. Founded in 1927, it is the flagship institution of the University of Houston System. The third-largest university in Texas, UH has over 38,750 students on its 667-acre campus in southeast Houston. It was known as University of Houston–University Park from 1983 to 1991. The Princeton Review has listed UH as one of America's best colleges. The institution ranks among the Top 50 American Research Universities, and it is in the Top 300 Academic Ranking of World Universities. The university offers over 300 degree programs through its 12 academic colleges on campus—including programs leading to professional degrees in law, optometry, and pharmacy. The institution conducts nearly $120 million annually in research, and it operates more than 40 research centers and institutes on campus. Interdisciplinary research includes superconductivity, space commercialization and exploration, biomedical sciences and engineering, energy and natural resources, and artificial intelligence. Awarding more than 7,200 degrees annually, UH's alumni base exceeds 250,000.