Other Sports > Hockey Transactions
Significant Dates in Professional Hockey History
| Date | Description |
| 1917-11-26 | NHL is formed with charter franchises Montreal Canadiens, Montreal Wanderers, Ottawa Senators, Quebec Bulldogs (elected not to operate a team until 19-20 season), and Toronto Arenas |
| 1917-12 | Montreal Wanderers withdrew from NHL |
| middle of 1918-19 season | Toronto Arenas withdrew from NHL |
| 1919-10-01 | Toronto Arenas reorganized under new ownership and re-joined NHL as Toronto St. Patricks |
| prior to 1920-21 season | Quebec Bulldogs moved to Hamilton and renamed Tigers |
| 1924-10-11 | NHL expansion franchises granted to Boston (Bruins) and Montreal (Maroons) |
| 1925-09-22 | NHL dropped Hamilton Tigers franchise and their players were assigned to a new franchise, the New York Americans |
| prior to 1925-26 season | Pittsburgh Pirates joined NHL |
| prior to 1926-27 season | Chicago Blackhawks and Detroit Cougars joined NHL |
| 1926-05-15 | NHL franchises granted to Detroit (Cougars) and New York (Rangers) |
| during 1926-27 season | St. Patricks renamed Maple Leafs |
| 1930-10-18 | Pittsburgh Pirates moved to Philadelphia and renamed Quakers |
| prior to 1930-31 season | Detroit Cougars renamed Falcons |
| prior to 1931-32 season | Ottawa Senators and Philadelphia Quakers folded |
| prior to 1932-33 season | Ottawa Senators re-joined NHL |
| 1932-10-05 | Detroit Falcons renamed Red Wings |
| 1934-05-13 | Ottawa Senators moved to St. Louis and renamed Eagles |
| 1935-10-15 | St. Louis Eagles franchise purchased by NHL and suspended operations |
| 1935-10-15 | NHL dispersal draft (St. Louis Eagles) |
| 1963-06-05 | 1963 NHL amateur draft |
| 1967-06-05 | NHL expansion franchises awarded to California (Seals), Los Angeles (Kings), Minnesota (North Stars), Philadelphia (Flyers), Pittsburgh (Penguins), St. Louis (Blues) |
| 1967-06-06 | NHL Expansion Draft (California Seals, Los Angeles Kings, Minnesota North Stars, Philadelphia Flyers, Pittsburgh Penguins, St. Louis Blues) |
| 1967-11-06 | California Seals renamed Oakland Seals (date per answers.com, date 12/8/67 per www.sealshockey.com) |
| 1970-05-22 | NHL expansion franchises awarded to Buffalo (Sabres) and Vancouver (Canucks) |
| 1970-07-01 | Oakland Seals renamed California Golden Seals (date approximate) |
| 1971-08-01 | WHA charter franchise awarded to Minnesota (Fighting Saints) |
| 1971-11-08 | NHL expansion franchise awarded to Atlanta (Flames) to begin play in 72-73 season |
| 1971-11-01 | Winnepeg Jets admitted to WHA |
| 1971-12-31 | NHL expansion franchise awarded to New York (Islanders) to begin play in 72-73 season |
| 1972-06-06 | NHL expansion draft (Atlanta Flames and New York Islanders) |
| 1973-05 | New York Raiders (WHA) renamed Golden Blades |
| 1973-05-15 | 1973 NHL amateur draft |
| 1974-04-30 | New Jersey Knights (WHA) moved to San Diego and renamed Mariners |
| 1974-06-11 | NHL expansion franchises awarded to Kansas City (Scouts) and Washington (Capitals) |
| 1975-01-18 | Michigan Stags (WHA) folded |
| 1975-01-25 | remains of Michigan Stags (WHA) moved to Baltimore and named Blades (WHA) |
| 1975-05-19 | Denver Spurs (WHA) granted an expansion franchise to begin play in 1975-76 season |
| 1975-05 | Baltimore Blades (WHA) folded |
| 1976-02-27 | Minnesota Fighting Saints (WHA) folded |
| 1976-07-15 | Kansas City Scouts moved to Colorado and renamed Rockies |
| 1976-08-26 | California Golden Seals moved to Cleveland and renamed Barons |
| 1977-01-17 | Minnesota Fighting Saints (WHA) folded |
| 1977-04-06 | Phoenix Roadrunners (WHA) folded |
| 1977 | Calgary Cowboys (WHA) folded |
| 1978-06-15 | Cleveland Barons - Minnesota North Stars merger/dispersal draft |
| 1979-06-22 | Four former WHA teams (Edmonton Oilers, Hartford Whalers, Quebec Nordiques and Winnipeg Jets) admitted to NHL |
| 1979-08-09 | 1979 NHL entry draft |
| 1980-06-24 | Atlanta Flames moved to Calgary |
| 1982-05-27 | Colorado Rockies moved to New Jersey and renamed Devils |
| 1984-06-09 | 1984 NHL entry draft |
| 1986-06-21 | 1986 NHL entry draft |
| 1990-06-16 | 1990 NHL entry draft |
| 1991-06-22 | 1991 NHL entry draft |
| 1991-12-16 | NHL expansion franchises awarded to Tampa Bay (Lightning) and Ottawa (Senators) |
| 1992-06-20 | 1992 NHL entry draft |
| 1993-06-09 | Minnesota North Stars franchise moved to Dallas and renamed Stars |
| 1993-06-24 | NHL expansion draft (Mighty Ducks and Panthers) |
| 1993-06-26 | 1993 NHL entry draft |
| 1994-06-28 | 1994 NHL entry draft |
| 1996-01-19 | Winnipeg Jets relocation to Phoenix approved by NHL |
| 1995-06-21 | Quebec Nordiques moved to Colorado and renamed Avalanche |
| 1996-06-22 | 1996 NHL entry draft |
| 1996-07-01 | Winnipeg/Phoenix Jets renamed Coyotes |
| 1997-06-21 | 1997 NHL entry draft |
| 1997-06-25 | Hartford Whalers franchise moved to Carolina and renamed Hurricanes |
| 1997-06-25 | NHL expansion franchises granted to Atlanta (Thrashers), Columbus (Blue Jackets), Minnesota (Wild), and Nashville (Predators) |
| 1998-06-26 | 1998 NHL expansion draft (Nashville Predators) |
| 1998-06-27 | 1998 NHL entry draft |
| 1999-06-25 | NHL expansion draft (Atlanta Thrashers) |
| 1999-06-26 | 1999 NHL entry draft |
| 2000-06-23 | NHL expansion draft (Columbus Blue Jackets & Minnesota Wild) |
| 2000-06-24 - 2000-06-25 | 2000 NHL entry draft |
| 2001-06-23 - 2001-06-24 | 2001 NHL entry draft |
| 2002-06-22 - 2002-06-23 | 2002 NHL entry draft |
| 2003-06-21 - 2003-06-22 | 2003 NHL entry draft |
| 2004-06-26 - 2004-06-27 | 2004 NHL entry draft |
| 2005-07-30 | 2005 NHL entry draft |
| 2006-06-22 | Mighty Ducks renamed Ducks |
| 2006-06-24 | 2006 NHL entry draft |
| 2007-06-22 - 2007-06-23 | 2007 NHL entry draft |
| 2008-06-20 - 2008-06-21 | 2008 NHL entry draft (round 1 on day 1, rounds 2-7 on day 2) |
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