The 1979-80 NHL season had 21 teams and an 80 game schedule. Edmonton Oilers, Winnipeg Jets, Quebec Nordiques and Hartford Whalers were added. August 26, 1979 Joe Mullen signs with St Louis. September 28, dino Ciccarelli signs in Minnesota. March 10 1980, Los Angeles trades Butch Goring to the New York Islanders for Dave Lewis and Billy Harris. Philadelphia goes undefeated in 35 games (25 wins 10 ties). Chicago wins first playoff game after losing 16 in a row. October 10 1979, Gary Smith starts with his 7th NHL team. November 28 1979 Billy Smith gets credited with a goal. February 24, Gordie Howe plays in his 5th decade. Preliminary round: Philadelphia 3 Edmonton 0, Buffalo 3 Vancouver 1, Montreal 3 Hartford 0, Boston 3 Pittsburgh 2, New York Islanders 3 Los Angeles 1, Minnesota 3 Toronto 1, Chicago 3 St Louis 0, New York Rangers 3 Atlanta 1. Quarter finals: Philadelphia 4 New York Rangers 1, Buffalo 4 Chicago 0, Minnesota 4 Montreal 3, New York Islanders 4 Boston 1. Semi finals Phila