The Toronto General Hospital (TGH) is a major teaching hospital in Toronto, Ontario, Canada and the flagship campus of University Health Network (UHN). It is located in the Discovery District of Downtown Toronto along University Avenue's Hospital Row; it is directly north of The Hospital for Sick Children, across Gerrard Street West, and east of Princess Margaret Cancer Centre and Mount Sinai Hospital. The hospital serves as a teaching hospital for the University of Toronto Faculty of Medicine. In 2019, the hospital was ranked first for research in Canada by Research Infosource for the ninth consecutive year. The emergency department now treats 28,065 persons each year, while the hospital also houses the major transplantation service for Ontario, performing heart, lung, kidney, liver, pancreas, and small intestine, amongst others, for patients referred from all over Canada. The hospital is the largest organ transplant center in North America, performing 639 transplants in 2017. The hospital is also renowned for cardiac and thoracic surgery. The world's first single and double lung transplants were performed at TGH in 1983 and 1986 and the world's first valve-sparing aortic root replacement was done by Tirone David at Toronto General Hospital in 1992. The Lung Transplant program is currently the largest in the world, performing 167 lung transplants in 2017. In 2015, surgeons performed the world's first triple organ transplant (lung, liver and pancreas) in 19 year old Reid Wylie at Toronto General Hospital. TGH teaches resident physicians, nurses, and technicians; it also conducts research through the Toronto General Research Institute. Currently, Sophie, Countess of Wessex, as a member of the Canadian Royal Family, is patron of the hospital. History The hospital started as a small shed in the old town and was used as a British Army military hospital during the War of 1812, after which it was founded as a permanent institutionYork General Hospitalin 1829, at John and King Streets (now home to Bell Lightbox). In 1855 a new home for the hospital was built on the north side of Gerrard Street, east of Parliament, using a design by architect William Hay. In 1913, the hospital moved to College Street, near its current location, expanding and upgrading over the ensuing years. The 1913 structure, previously called the College Wing, was eventually sold by the hospital, to become the home of the MaRS Discovery District after a new wing for the TGH was completed and opened