For teams currently in NHL.
1919—Quebec Bulldogs finally take the ice after sitting out NHL's first two seasons; 1924—Boston Bruins and Montreal Maroons; 1925–New York Americans and Pittsburgh Pirates; 1926—Chicago Black Hawks (now Blackhawks), Detroit Cougars (now Red Wings) and New York Rangers; 1932—Ottawa Senators return after sitting out 1931-32 season.
1967—California-Oakland Seals (later Cleveland Barons), Los Angeles Kings, Minnesota North Stars, Philadelphia Flyers, Pittsburgh Penguins and St. Louis Blues.
1970—Buffalo Sabres and Vancouver Canucks; 1972—Atlanta Flames (now Calgary) and New York Islanders; 1974—Kansas City Scouts (now New Jersey Devils) and Washington Capitals; 1978—Cleveland Barons merge with Minnesota North Stars (now Dallas Stars) and team remains in Minnesota; 1979—added WHA's Edmonton Oilers, Hartford Whalers (now Carolina Hurricanes), Quebec Nordiques (now Colorado Avalanche) and Winnipeg Jets (now Phoenix Coyotes).
1991—San Jose Sharks; 1992—Ottawa Senators and Tampa Bay Lightning; 1993—Mighty Ducks of Anaheim and Florida Panthers; 1998—Nashville Predators; 1999—Atlanta Thrashers.
2000—Columbus Blue Jackets and Minnesota Wild.
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