The promotion, initially known as the Queensbury Athletic Club, traces its roots back to 1930, when it was launched by Jack Corcoran, who had previously promoted boxing in Toronto under the Queensbury name. Initially, Corcoran was involved in a promotional war with rival promoter Ivan Mickailoff, but after Corcoran allied himself with the new Maple Leaf Gardens in 1931, he took control of professional wrestling in Toronto. The Gardens would remain the main venue for the promotion for more than 60 years.
