The Super League (also known as the Betfred Super League due to sponsorship from Betfred, and legally known as Super League Europe Ltd.) is the top-level of the British rugby league system. At present the league consists of twelve teams, of which eleven are from Northern England, reflecting the sport's geographic heartland within the UK and one from southern France. The Super League began in 1996, replacing the existing First Division and, significantly, switching from a traditional winter season to a summer season.
https://en.wikipedia.org/wiki/Super_League