- TIL the icing rule was invented because the Bruins “iced” the puck 87 times in one game in 1931 to protest against the New York Americans, who did the same to protect a 3-2 lead in their prior matchup. This became a popular form of defense, and the rule was invented in 1937 https://www.foxsports.com/nhl/story/boston-bruins-throwback-thursday-icing-082715 76 comments hockey