The Faculty of Medicine of the University of Oslo is the oldest and largest research and educational institution in medicine in Norway. It was founded in 1814, effectively as a Norwegian continuation of the Faculty of Medicine at the University of Copenhagen, the only university of Denmark-Norway until 1811. It was Norway's only medical faculty until the Cold War era. The faculty has around 1,000 employees, 2000 students and 1400 PhD candidates. The faculty is headquartered at Oslo University Hospital, Rikshospitalet, with important campuses at Oslo University Hospital, Ullevål and several other hospitals in the Oslo area.