Mexico, National Autonomous University of, at Mexico City, Mexico; founded 1551 by the Spanish king Charles I (Holy Roman Emperor Charles V). It has faculties of accounting and business administration, architecture, chemistry, dentistry, economics, engineering, law, medicine, philosophy and letters, political and social sciences, professional studies, psychology, sciences, and veterinary medicine and zoology as well as schools of music, nursing and obstetrics, plastic arts, social work, and sciences and humanities. Libraries include the Central Library and the National Library of Mexico, which is run by the Bibliographical Research Institute of the university. Among its numerous research centers and institutes are those for applied mathematics and systems research, biomedical research, cinematic studies, geophysics, atmospheric sciences, marine sciences, and interdisciplinary research in the humanities.