A particularly successful form of multi-stakeholder cooperative is the Italian social cooperative, of which some 11,000 exist.  1 Type A social cooperatives bring together providers and beneficiaries of a social service as members.
The sport of Quidditch gets its name from Queerditch Marsh, the location of the first recorded game. A witch by the name of Gertie Keddle lived on the edge of the marsh around the year 1050 and recorded what she saw in a diary that survives to this day.
The Quidditch World Cup (also called the World Cup or World Championship) has been held every four years since 1473. The competition sees Quidditch teams representing countries around the world compete for the World Cup, while the International Quidditch Tournament is between regional teams.