<P> Important events have also taken place on campus, such as Edmund Gettier's refutation of the "justified true belief" theory, which shook 2,500 years of epistemology . </P> <P> With more than four million volumes, the Wayne State University Library System houses the 75th largest collection in the United States, according to the American Library Association . The system ranks among the nation's top libraries according to the Association for Research Libraries . </P> <Ul> <Li> Shiffman Medical Library houses the university's medical collections and is the School of Medicine's sole library . </Li> <Li> Arthur Neef Law Library, located on the north section of the main campus, houses the university's law collections and is the Law School's sole library . </Li> <Li> Purdy / Kresge Library is located near the center of main campus and serves as the primary research library for the social sciences, humanities, arts, education and business disciplines . It contains print and electronic resources to meet the research and instructional needs of faculty, graduate students and upper - level undergraduates . It also houses the university's main government documents collection and the offices of the university's Media Services Department . </Li> <Li> David Adamany Undergraduate Library (UGL), located on the center of Gullen Mall, has over 700 computer workstations providing students with access to electronic resources . Its book and magazine collection is intended to support the learning needs of 1,000 and 2,000 level undergraduate courses . The UGL houses the university libraries' collection of approximately 8,000 videos, DVDs, laser discs and audiotapes . The UGL provides students with information on careers, computers and student survival skills . The Undergraduate Library is open 24 hours for students and faculty . </Li> <Li> The Walter P. Reuther Library of Labor and Urban Affairs is located on the easternmost portion of Wayne's main campus, at 5401 Cass Avenue . The Reuther is the largest labor archives in the United States, and serves as the official archival repository for twelve major unions . In addition to labor records, the archives contain primary source material related to civil and political rights, especially those related to Detroit . The Reuther also houses the Wayne State University Archives dating from the institution's founding as the Detroit Medical College in 1868 . </Li> <Li> Wayne State University also has library service desks at its Macomb and Oakland extensions centers in Clinton Township and Farmington Hills . </Li> </Ul> <Li> Shiffman Medical Library houses the university's medical collections and is the School of Medicine's sole library . </Li>

When did adams state college became a university