The 43-year-old right wing owns the NHL career marks for games played, goals, assists and points, but he's coming off his worst offensive season (23 goals, 52 points) since 1948-49 when he decides to retire. The Hockey Hall of Fame waives its mandatory three-year waiting period, and he's inducted in 1972.
But after two seasons off the ice, Howe returns as a player with the Houston Aeros of the World Hockey Association, skating with his sons Mark and Marty. Howe spends six seasons in the WHA, the last two with the New England Whalers, before the franchise, now known as the Hartford Whalers, joins the NHL in 1979. He plays all 80 games in 1979-80, finishing with 41 points (15 goals, 26 assists), before retiring for good shortly after his 52nd birthday.