Today in Hockey History: May 15
May 15 goes down as one of the most intriguing dates in National Hockey League history. There was so much more than just the exciting moments on the ice that makes it a memorable date. The league announced some significant expansion teams, one of the most lopsided trades ever occurred, and one team made a franchise-altering draft pick. The THW time machine is warmed up and ready to take us back through the years to relive all the best moments. The Heist of the Century Depending on which team you root for, May 15, 1967, is either a great day…