Encouraged by the initial success of his , which challenged the National Basketball Association (NBA), Gary Davidson and his cohorts turned their attention to hockey. On November 1, 1971, Davidson announced the formation of the World Hockey Association (WHA) to challenge the established National Hockey League (NHL). The WHA began competing for players and fans in the fall of 1972. It collapsed in 1979 with 4 teams (The Quebec Nordiques, Winnipeg Jets, , and Edmonton Oilers) being admitted to the rival NHL. Teams from the league's heyday included the , , (who became the , then the ), , , ,  (who became the ), , (who became the and, later, the ), and the   and checkout our !