Football is played throughout the far regions of the world. There is no other sport that brings so many people together locally, nationally, and internationally. Football is not, however, a unified sport with shared rules, customs and histories across time and space. In contrast, football is largely a different sport depending on where it is being played. This paper traces the development of Canadian football as a unique sport with strong similarities to and subtle differences from American football, as well as clear distinctions from forms of football played outside of North America.