LA Kings join the league in the 1967 NHL expansion.
Six teams in total joined the league and were added to the "original six".
The six teams added to the NHL in '67 were;
California Seals (Later named Oakland Seals then California Golden Seals)
Minnesota North Stars
1967-68 was their first full season in NHL.
1967 I believe at the forum in Los Angeles wearing purple and gold
They entered in 1967
The Los Angeles Kings first season with the NHL was in 1967-68
LA Kings 2012
Oakland Seals vs LA Kings 68-69
Brayden Schenn- LA Kings 18 years old
la kings,Anaheim ducks and san Jose sharks.
If you mean "When did the Calgary Flames join the NHL?" then they joined in 1980
The Minnesota Wild and the Columbus Blue Jackets were the last teams to join, both in 2000.
pitt penguins, Oakland seals, minn north stars, st Louis blues, la kings, Philly flyers
Sacramento Kings (NBA)Los Angeles Kings (NHL)
From 1988 to 1996
1979 as one of 4 teams of the WHA that joined the NHL.