The tournament Competition also initiated Process_start several year-long celebrations , the 375th anniversary Social_event of Montreal 's founding ; the 100th anniversary Social_event of the National Hockey League 's founding in Montreal ; the 100th anniversary Social_event of Hockey Canada 's origins ; the 50th anniversary Social_event of Montreal 's Expo 67 ; the 150th anniversary Social_event of Canadian confederation Cause_to_amalgamate ; and the 100th anniversary Social_event of the Toronto Maple Leafs .