As part of the League's Centennial Celebration, NHL.com is taking a look back at memorable events each week.
Here are Centennial highlights for the week of August 20-26:
Aug. 26, 1971: Bobby Orr becomes the NHL's first million-dollar player when he signs a contract with the Boston Bruins that will pay him $200,000 for each of the next five seasons.
Video: Bobby Orr revolutionized defensive position
Aug. 25, 1977: Defenseman Tim Horton and center Alex Delvecchio, two longtime rivals whose careers last well into their 40s, are part of the Class of 1977 at the Hockey Hall of Fame.
Video: Tim Horton had legendary strength, anchored Toronto D
Aug. 24, 1972: The induction of Gordie Howe, Jean Beliveau and Bernie Geoffrion into the Hockey Hall of Fame overshadows the fact that Hap Holmes, one of the greatest goaltenders in hockey's formative years, is among the other inductees.
Aug. 23, 1973: Defenseman Doug Harvey, a key to the Montreal Canadiens' dynasty in the 1950s, is among five inductees into the Hockey Hall of Fame.
Aug. 22, 1974: Two-time NHL scoring champion Dickie Moore is one of seven men inducted into the Hockey Hall of Fame. Among the others is Charles Hay, a key figure in the negotiations that led to the 1972 Summit Series between Canada and the Soviet Union and the father of Bill Hay, who's inducted in 2015.
Aug. 21, 1912: Toe Blake, who plays on three Stanley Cup-winning teams and coaches eight others, is born in Victoria Mines, Ontario. Two of Blake's three Cups as a player and all eight as a coach come with the Canadiens.
Video: Toe Blake was one of toughest players, best coaches
Aug. 20, 1926: The Bruins purchase 24-year-old defenseman Eddie Shore from the Edmonton Eskimos of the Western Hockey League. Shore becomes the cornerstone of the Bruins, becoming the first player to win the Hart Trophy four times and helping Boston win the Stanley Cup in 1929 and 1939.
Video: Eddie Shore was Bruins' first great defenseman