History of the National Hockey League (1942–1967)

The Original Six era of the National Hockey League (NHL) began in 1942 with the demise of the Brooklyn Americans, reducing the league to six teams: Boston Bruins, Chicago Black Hawks, Detroit Red Wings, Montreal Canadiens, New York Rangers, and Toronto Maple Leafs. This structure remained stable for a quarter century; the era ended in 1967 when the NHL doubled in size adding six expansion teams.