The Canadian Football League (CFL) is a professional football league in Canada, established in 1958. It features nine teams that compete in a regular season, followed by playoffs leading to the championship game known as the Grey Cup. The league is known for its unique rules, including a larger field and three downs instead of four. The CFL season typically runs from June to November, with teams located in major cities across Canada, such as Toronto, Calgary, and Vancouver. The league has a rich history and is an important part of Canadian sports culture, attracting fans and players from diverse backgrounds.