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.
History of US Quidditch. Quidditch was founded in 2005 at Middlebury College by then-freshman Xander Manshel. Looking for a variation on their normal Sunday activities, Manshel and his friends laid the foundation for a game that has grown in leaps and bounds to become a widely respected, physically intense sport.
Quidditch matches are played on (or rather over) an oval-shaped, 500 feet (150 m) long and 180 feet (55 m) wide pitch, with a small central (core) circle approximately 2 feet (0.61 m) in diameter.