46/47:	The Basketball Association of America (BAA) is formed:
	The founding members are the Boston Celtics, New York Knicks,
	Philadelphia Warriors and the soon-to-fold Chicago Stags,
	Cleveland Rebels, Detroit Falcons, Pittsburgh Ironmen,
	Providence Steamrollers, St. Louis Bombers,
	Toronto Huskies and Washington Capitols.
47/48:	Gone: Cleveland, Detroit, Toronto and Pittsburgh.
	New team: Baltimore Bullets.
48/49:	Joining from existing leagues:
	Rochester Royals, Minenapolis Lakers, Fort Wayne Pistons
	and the Indianapolis Kautskys, who change name to Jets
49/50:	The league becomes the National Basketball Association (NBA).
	Gone: Indianapolis and Providence.
	Joining: Syracuse Nationals, Tri-Cities Blackhawks (the cities
	are Moline, IL, Rock Island, IL and Davenport, Iowa),
	Sheboygan (Wisc.) Redskins, Waterloo (Iowa) Hawks and Denver Nuggets.
	New teams: Indianapolis Olympians, Andreson Packers.
	The league has 17 teams in three divisions.
51/52:	Gone: Anderson, Denver, Sheboygan, Waterloo (back to NBL).
	Folded: St. Louis, Chicago and in midseason, Washington.
	Blackhawks move to Milwaukee, change name to Hawks.
	10 teams, two divisions.
	8 teams in playoffs: best of 3, best of 5, best of 7.
53/54:	Stable regular season schedule of 72 games.
54/55:	Gone: Indianapolis.
	Playoffs: 3 team round robin in each division, followed by a
	best of 3 series and a best of 7 final.
55/56:	24 second shot clock, limit on fouls per quarter.
	Baltimore folds in mid-season.
	Hawks move to St. Louis.
	8 teams in 2 divisions.  6 in playoffs. First round in each division
	is #2 vs #3 in best of 3, followed by divisional finals in
	best of 5, and the final is best of 7.
57/58:	Royals move to Cincinnati.
	Pistons move to Detroit.
	Divisional finals also best of 7.
59/60:	Regular season: 75 games.
60/61:	Lakers move to Los Angeles.
	Regular season: 79 games.
	Playoffs first round extended to best of 5.
61/62:	New team: Chicago Packers.
	Regular season: 80 games.
62/63:	Packers become Zephyrs.
	Warriors move to San Francisco.
63/64:	Chicago Zephyrs move to Baltimore, change name to Bullets.
	Nationals move to Philadelphia, change name to 76ers.
66/67:	New team: Chicago Bulls.
	Regular season: 81 games.
67/68:	New teams: San Diego Rockets, Seattle SuperSonics.
	Regular season: 82 games.
	League has 12 teams, 8 in the playoffs.
	Playoffs first round is now #1 vs #3 and #2 vs #4.
	All three rounds are best of 7.
68/69:	Hawks move to Atlanta.
	New teams: Milwaukee Bucks, Phoenix Suns.
70/71:	New teams: Buffalo Braves, Cleveland Cavaliers, Portland TrailBlazers.
	With 17 teams, the league splits into four divisions, with Eastern
	and Western conferences.  The divisions are the Atlantic (Boston, NY,
	Philadelphia and Buffalo), Central (Atlanta, Baltimore, Cincinnati and
	Cleveland), Midwest (Milwaukee, Chicago, Detroit and Phoenix) and
	the Pacific (LA, SF, SD, Seattle and Portland).
	Playoffs: 8 teams -- top two from each division.
71/72:	San Francisco Warriors change name to Golden State, play in Oakland.
	Rockets move to Houston.
	Playoffs: top four in each conference.
	First round is #1 vs #4, #2 vs #3.
72/73:	Royals move to Kansas City-Omaha and change name to Kings.
	Phoenix, Houston and KC rotate divisions.
73/74:	Bullets move to Washington, under the name Capital Bullets.
74/75:	New team: New Orleans Jazz.
	Capital Bullets change name to Washington.
	Playoffs: 10 teams out of 18: Top two from each division, plus
	one third-place team in each conference.  The division winners
	get the #1 and #2 seeds.  The additional playoff round between
	the #4 and #5 seeds is a best of 3 "mini-series".
75/76:	Kings leave Omaha, remain in Kansas City.
76/77:	Merger with the ABA brings in the New York Nets, Denver Nuggets,
	Indiana Pacers and San Antonio Spurs.
77/78:	Nets move to New Jersey.
	Playoffs: 12 teams out of 22, Now only the #1 and #2 seeds in each
	conference (the division winners) have a first round bye.
78/79:	Braves move to San Diego and change name to Clippers.
	S.D., Washington and Detroit rotate divisions.
79/80:	Jazz move to Utah, and switch divisions with Detroit.
	The three point shot is introduced.
80/81:	New team: Dallas Mavericks.
	Milwaukee and Chicago switch divisions with San Antonio and Houston.
	As a result, the Midwest division has the Texas and Mountain teams
	plus Kansas City, and the Central has the Great Lakes states teams
	plus Atlanta.
84/85:	Clippers move to Los Angeles.
	Playoffs expanded to 16 teams (out of 23).  No more first round byes,
	and the first round is extended to best of 5.
85/86:	Kings move to Sacramento.
88/89:	New teams: Charlotte Hornets, Miami Heat.
	Sacramento switches to the Pacific division. 
89/90:	New teams: Minnesota Timberwolves, Orlando Magic.
	The league now has 27 teams.
91/92:	New teams settle in their divisions:  Miami and Orlando in the
	Atlantic, Charlotte in the Central and Minnesota in the Midwest.