Numerous innovations to the rules and equipment were put forward as the NHL sought to improve the flow of the game and make the sport more fan-friendly.
Desperate conditions in Montreal meant that the city nearly lost both of its teams in the 1930s; the Canadiens nearly moved to Cleveland, but survived due to its stronger fan support.
The six teams left standing in 1942 (the Boston Bruins, Chicago Black Hawks, Detroit Red Wings, Montreal Canadiens, New York Rangers and Toronto Maple Leafs) are known today as the "Original Six".
When the relatively weak Ottawa Capitals joined in 1898, the five original clubs withdrew from the AHAC to form the new Canadian Amateur Hockey League (CAHL).
The IHL's ability to pay salaries caused an "Athletic War" that drained amateur clubs of top players, most noticeably in the Ontario Hockey Association (OHA).
With the IHL gone, teams from Toronto, Berlin (now Kitchener), Brantford, and Guelph filled the void with the Ontario Professional Hockey League (OPHL).
These businessmen applied financial principles similar to those of early baseball, and the leagues quickly entered a bitter bidding war over players.
[8] With its significantly wealthier backers, the NHA easily recruited the top players, leaving the CHA teams, except Ottawa, relatively mediocre.
The Quebec Bulldogs were in financial difficulty,[10] while the league's most popular team, the Toronto 228th Battalion, was called away to fight in World War I.
[12] Prior to the start of the season, the owners of the Montreal teams, Sam Lichtenhein of the Wanderers and George Kennedy of the Canadiens, threatened to drop the Blueshirts from the league over a player dispute Livingstone was having with the 228th Battalion.
[18] On November 26, 1917, following several meetings of the NHA owners throughout the month, the National Hockey League was created at the Windsor Hotel in Montreal.
Mr. Northey explained that he was empowered by the interests he represented to say that in the event of a league being formed to contain four clubs, the Toronto Arena desired to enter a team in the competition.
Frank Calder was elected President and Secretary-Treasurer at a salary of $800 (Eight Hundred Dollars) on the understanding that there could be no appeal from his decisions....[20] The NHL was intended to be a temporary league, as the owners hoped to remove Livingstone from Toronto, then return to the NHA in 1918–19.
[29] While the Canadiens relocated to the 3,000-seat Jubilee Arena, Lichtenhein chose to withdraw the Wanderers, citing the lack of available players due to the war.
[32] The victory gave Toronto the right to face the Pacific Coast Hockey Association's champion, the Vancouver Millionaires, in the Stanley Cup Finals.
[41] In 1924, the Canadiens defeated the PCHA's Millionaires and the WCHL's Calgary Tigers on the strength of two shutouts by Georges Vezina and a strong offensive showing by rookie forward Howie Morenz.
[43] Threatened with fines, suspension and a possible lawsuit by league president Frank Calder, the players, led by Billy Burch and Shorty Green, held firm.
[48] The Bruins were purchased by Charles Adams, a grocery store financier who first developed an interest in hockey during the Stanley Cup playoffs, paying $15,000 for the team.
[59][60] Despite the reduced awards, the Querries found the pressures of meeting their obligations to Livingstone too great and, as a result, placed the St. Patricks up for sale in 1927.
[66] In an attempt to raise money, Smythe entered a thoroughbred racing horse he owned, Rare Jewel, in the Coronation Futurity Stakes at odds of 106–1.
[76] Neurosurgeons operated throughout the night to save his life; however, Bailey's prognosis was so grim that morning papers printed his death notice.
Just before the season, a syndicate of local Montreal businessmen, led by Maurice Forget and Ernest Savard, stepped forward to buy the club and prevent the transfer.
[85] The biggest name was Montreal's Howie Morenz, a three-time Hart Trophy winner, two-time scoring leader and the face of the Canadiens organization.
[86] The Montreal fans voiced their opinion of the deal by giving Morenz a standing ovation when he scored against the Canadiens on the last day of the 1935 season.
"[89] On the day of his funeral, 50,000 people filed past Morenz's casket at centre ice of the Montreal Forum to pay their last respects to the man the media called "the Babe Ruth of hockey".
[92] The Black Hawks hired Major League Baseball umpire Bill Stewart to be the first American coach in NHL history.
In the playoffs, however, the Hawks upset the Canadiens and the Americans to reach the Stanley Cup Finals against the heavily favoured Maple Leafs.
[96] In financial difficulty, and unable to compete with the Canadiens for fan support in Montreal, the Maroons suspended operations prior to the 1938–39 season after being denied permission to relocate to St. Louis.
[101] The league responded by introducing the offside rule early in the 1929–30 season, barring offensive players from entering their opponent's zone before the puck.
[99] Despite this, Cooney Weiland, Dit Clapper, and Howie Morenz all broke the 40-goal mark, the first players to do so since Joe Malone scored 44 in the NHL's first season.