The Ontario Agricultural College (OAC) originated at the agricultural laboratories of the Toronto Normal School, and was officially founded in 1874 as an associate agricultural college of the University of Toronto. Since 1964, it has become affiliated with the University of Guelph, which operates four campuses throughout Ontario. Its first building was Moreton Lodge, located where Johnston Hall now stands, which included classrooms, residences, a library, and a dining room. (Several buildings constructed during this time period are still a part of campus life today, including President's Residence, Raithby House, and Day Hall.) The War Memorial Hall (more generally known as Memorial Hall) is a landmark building built in June 1924 as a lecture hall or theatre at the Ontario Agricultural College to honour students who had enlisted and died in the First World War, and in the Second World War. Two bronze tablets in the Memorial Chapel remembers alumni who died in the First World War and in the Second World War. Subsequently, the Ontario Agricultural College (OAC) became one of three founding colleges of the University of Guelph in 1964.