Weill Cornell Medical Center is a research hospital in New York City. It is the teaching hospital for Cornell University's medical school and is part of NewYork-Presbyterian Hospital. The hospital was founded in 1771 with a charter from George III. It is the second-oldest hospital in New York City and third-oldest hospital in the United States. Since 1912, it has been the main teaching hospital for Weill Cornell Medicine, the biomedical research unit and medical school of Cornell University.