Which hockey teams do not exist anymore?

NHL hockey teams that no longer exist include:

1. Hartford Whalers

2. Indianapolis Racers

3. St. Louis Eagles

4. Atlanta Thrashers

5. Cincinatti Stingers

6. Cleveland Barons

7. Minnesota North Stars

8. California Golden Seals

9. Houston Aeros

10. Minnesota Fighting Saints

11. Montreal Wanderers

12. Hamilton Tigers

13. Atlanta Flames

14. Oakland Seals

15. Colorado Rockies

16. Kanas City Scouts

17. Quebec Nordiques

18. Detriot Cougars

19. New York Americans

20.Philidelphia Quackers

ect.