Major professional sports leagues in the United States and Canada
The Canadian Football League is the highest level of play in Canadian football. The league was organized in 1956 as a cooperative agreement between two regional leagues, the Big Four (which dated to 1907) and the WIFU (which was founded in 1936), and became independent from Football Canada in 1958. The league now consists of nine teams, all based in Canada. The Grey Cup is awarded annually to the champion every November and is the highest attended sporting event in the nation. The oldest extant teams, the Hamilton Tiger-Cats and the Toronto Argonauts, trace their origins to the late 1860s and early 1870s, which ranks them amongst the oldest professional sports teams of any kind still in existence on the continent. The CFL attempted an expansion into the United States in cities that had no NFL team between 1993 and 1995, though the expansion teams all either folded or relocated to Canadian cities.
List of professional sports
Rugby football in Canada had its origins in the early 1860s, and over time, a unique code of football known as Canadian football developed. Both the Canadian Football League (CFL), the sport's top professional league, and Football Canada, the governing body for amateur play, trace their roots to 1882 and the founding of the Canadian Rugby Football Union (later reorganized as the Canadian Rugby Union). In 1909, the Grey Cup was donated by the then Governor General of Canada Albert Grey, 4th Earl Grey, to recognize the top amateur rugby football team in Canada. From the 1930s to the 1950s, the two senior leagues of the CRU (the Interprovincial Rugby Football Union and the Western Interprovincial Football Union) gradually evolved from amateur to professional leagues, and found they had less and less in common with the amateur leagues, and consequently in 1956 formed a new umbrella organization, the Canadian Football Council. In 1958, the CFC left the CRU altogether and was renamed the Canadian Football League. By this time, teams from the amateur Ontario Rugby Football Union had stopped challenging for the Grey Cup, and ever since, it has been exclusively awarded to CFL teams. Since 1965, university teams have competed for the Vanier Cup.