National Basketball Association
The National Basketball Association (NBA) is a premier professional basketball league in North America, comprising 30 teams across the United States and Canada. Founded in 1949 through a merger of earlier leagues, the NBA has grown into a global sports and entertainment entity, widely regarded as the world's top basketball competition. For Canadian fans, the league's presence is anchored by the Toronto Raptors, who became champions in 2019, and a history that includes the league's very first game being played in Toronto in 1946. The NBA's season runs from October through June, culminating in the NBA Finals, with the New York Knicks reigning as champions after winning the 2026 title.
Formation and Early Years
The NBA traces its origins to the Basketball Association of America (BAA), founded in 1946 by owners of major ice hockey arenas. The league considers its first official game to have been played on November 1, 1946, at Toronto's Maple Leaf Gardens, where the New York Knickerbockers defeated the Toronto Huskies, with the first basket scored by Ossie Schectman of the Knickerbockers. The BAA aimed to distinguish itself by playing in large urban arenas, though early play was not vastly superior to rival circuits like the National Basketball League (NBL) or independent clubs like the Harlem Globetrotters. A merger occurred on August 3, 1949, when the BAA and NBL combined to form the National Basketball Association, with BAA president Maurice Podoloff becoming the NBA's first president and NBL chairman Ike Duffey becoming chairman. The new league began with 17 franchises located in a mix of large and small cities and venues but underwent significant consolidation, shrinking to 11 teams in 1950 and then to eight by the 1954-55 season.
Japanese-American Wataru Misaka broke the colour barrier with the New York Knicks in the 1947-48 BAA season. The first African-American players entered the league in 1950, including Chuck Cooper with the Boston Celtics, Nathaniel 'Sweetwater' Clifton with the Knicks, and Earl Lloyd with the Washington Capitols. On the court, the Minneapolis Lakers, led by centre George Mikan, established the NBA's first dynasty by winning five championships between 1949 and 1954. To increase pace and scoring, the league introduced the 24-second shot clock in 1954, a rule designed to encourage shooting and discourage stalling. The eight franchises that remained after the mid-1950s contraction all survive today, though six have moved cities, such as the Rochester Royals moving to Cincinnati in 1957 and the Fort Wayne Pistons moving to Detroit that same year.
Eras of Dominance and Expansion
The Boston Celtics, led by centre Bill Russell, guard Bob Cousy, and coach Red Auerbach, dominated the late 1950s and 1960s. Russell's arrival in 1957 propelled the Celtics to 11 championships in 13 seasons, including an unprecedented eight consecutive titles from 1959 to 1966. This era also featured the rivalry between Russell and Wilt Chamberlain, who entered the league with the Philadelphia Warriors in 1959 and set single-game records of 100 points and 55 rebounds. The league expanded its geographic footprint during this period, with several franchises relocating to larger markets. The Minneapolis Lakers moved to Los Angeles, the Philadelphia Warriors to San Francisco, the Syracuse Nationals to Philadelphia to become the 76ers, and the St. Louis Hawks moved to Atlanta. The first expansion franchises also joined, with the Chicago Packers (now Washington Wizards) becoming the ninth team in 1961.
From 1966 to 1968, the league expanded from 9 to 14 teams, introducing the Chicago Bulls, Seattle SuperSonics (now Oklahoma City Thunder), San Diego Rockets (who moved to Houston in 1971), Milwaukee Bucks, and Phoenix Suns. A significant challenge emerged in 1967 with the formation of the American Basketball Association (ABA), sparking a bidding war for talent. The NBA secured top college star Kareem Abdul-Jabbar, but lost stars like Rick Barry and four veteran referees to the rival league. The two leagues eventually merged in 1976, adding the San Antonio Spurs, Denver Nuggets, Indiana Pacers, and New York Nets (now Brooklyn Nets) to the NBA, bringing the total to 22 teams. The 1970s saw the debut of the modern NBA logo in 1971, incorporating the silhouette of Jerry West based on a photo by Wen Roberts, though the league has never officially confirmed the model. The decade ended with concerns over declining television ratings, low attendance, and drug-related player issues.
The Modern NBA and Global Growth
The arrival of Larry Bird and Magic Johnson in 1979, following their famed NCAA championship matchup, helped draw fans to the league and sparked a rivalry that defined the 1980s. Their teams, the Boston Celtics and Los Angeles Lakers, met in three NBA Finals during the decade (1984, 1985, 1987), with Johnson's Lakers winning five titles in the 1980s and Bird's Celtics winning three. The league also adopted the ABA's three-point field goal in 1979, and Bird won the first three NBA three-point shooting contests. Commissioner David Stern took office on February 1, 1984, overseeing an era of expansion and commercial success.
Expansion continued in the late 1980s, with the Charlotte Hornets, Miami Heat, Orlando Magic, and Minnesota Timberwolves making their debuts in 1988 and 1989, bringing the league to 27 teams. The NBA's international reach expanded significantly with the 1992 U.S. Olympic 'Dream Team,' the first to use current NBA stars. The team featured Jordan, Bird, Johnson, and nine other NBA players, along with college amateur Christian Laettner, and was elected to the Basketball Hall of Fame. In 1995, the league expanded into Canada with the addition of the Toronto Raptors and Vancouver Grizzlies. The NBA also founded the Women's National Basketball Association (WNBA) in 1996.
Recent Champions and League Structure
After the breakup of the Chicago Bulls in 1998, the Western Conference dominated the next two decades. The Los Angeles Lakers, coached by Phil Jackson, and the San Antonio Spurs, coached by Gregg Popovich, combined for 13 Finals appearances in 16 seasons from 1999 to 2014, winning 10 titles. The Spurs, led by Tim Duncan and David Robinson, won in 1999, becoming the first former ABA team to win an NBA championship. The Lakers, with Shaquille O'Neal and Kobe Bryant, then won three consecutive titles from 2000 to 2002. The Miami Heat, after forming a 'Big Three' with LeBron James, Dwyane Wade, and Chris Bosh in 2010, reached four straight Finals, winning in 2012 and 2013. The Golden State Warriors then rose to prominence, making five consecutive Finals from 2015 to 2019 and winning three titles, led by Stephen Curry and later joined by Kevin Durant.
The league's current championship landscape is led by the Boston Celtics with a record 18 titles, most recently won in 2024. The New York Knicks are the reigning champions after winning the 2026 NBA Finals against the San Antonio Spurs. The Toronto Raptors won the championship in 2019. The NBA's structure includes a regular season where each of the 30 teams plays 82 games, followed by a playoff tournament for 16 teams that concludes with the NBA Finals in June. The league has seen several franchise changes, including the Seattle SuperSonics moving to become the Oklahoma City Thunder in 2008 and the New Orleans Hornets rebranding as the Pelicans in 2013, with the Charlotte Bobcats reclaiming the Hornets name in 2014.
- Boston Celtics: 18 championships (most recent: 2024).
- Los Angeles Lakers: 17 championships.
- Golden State Warriors: 7 championships.
- Chicago Bulls: 6 championships.
- San Antonio Spurs: 5 championships.
- Miami Heat: 3 championships.
- Detroit Pistons: 3 championships.
- Philadelphia 76ers: 3 championships.
Business, Governance and Related Leagues
The NBA is a major commercial enterprise, consistently ranked as the second-wealthiest professional sports league in the world by revenue after the National Football League. Its players are the world's highest paid athletes by average annual salary per player. Under the leadership of commissioners David Stern (1984 to 2014) and Adam Silver (2014 to present), the league has secured lucrative television contracts and expanded its digital and international media presence. The NBA maintains its headquarters in New York City, with its entertainment and studio operations based in Secaucus, New Jersey. It is a member of USA Basketball, the sport's national governing body recognized by FIBA.
Beyond the NBA itself, the league operates and oversees several other competitions. The Women's National Basketball Association (WNBA) was founded in 1996 as a women's professional basketball league. The NBA G League, originally known as the NBA Development League, serves as the NBA's official minor league for player development. The NBA also runs the NBA 2K League, a professional esports league, and, in partnership with FIBA, the Basketball Africa League, which began play in 2020. The league has implemented various policies over the years, including a drug-testing program started in 1983 and substantially improved in 1999, which by 2005 had resulted in only three confirmed positive tests for steroids and performance-enhancing drugs out of nearly 4,200 tests conducted over six seasons.
Notable Seasons, Records and Incidents
The NBA's history is marked by seasons of exceptional team performance and significant off-court events. The Cleveland Cavaliers overcame a 3-1 deficit to defeat those Warriors in the 2016 Finals, ending a 52-year professional sports championship drought for the city of Cleveland. The 2011-12 season began with a lockout and was shortened to 66 games. The league's image faced a challenge after a violent incident between players and fans during a November 2004 game between the Indiana Pacers and Detroit Pistons, leading to player suspensions totalling 146 games and $11 million in lost salary, and prompting the league to tighten security and limit alcohol sales.
| Season | Champion | Runner-up | Notable Event or Record |
|---|---|---|---|
| 1949-50 | Minneapolis Lakers | Syracuse Nationals | First NBA season post-merger. |
| 2011-12 | Miami Heat | Oklahoma City Thunder | Season shortened to 66 games due to lockout. |
| 2015-16 | Cleveland Cavaliers | Golden State Warriors | Warriors set record with 73 wins. Cavaliers overcome 3-1 Finals deficit. |
Evolution of Teams and Franchise Movements
The composition and location of NBA teams have changed considerably since the league's formation. The original eight teams that stabilized the league in the mid-1950s have all relocated except the New York Knicks and Boston Celtics. Expansion in the 1960s and 1970s added teams in new markets, while the 1976 ABA merger brought four established franchises into the league. More recent franchise movements include the Charlotte Hornets moving to New Orleans in 2002, followed by the creation of the expansion Charlotte Bobcats in 2004. The New Orleans team temporarily relocated to Oklahoma City for two seasons starting in 2005 due to Hurricane Katrina before returning in 2007. The Seattle SuperSonics moved to Oklahoma City in 2008 after a settlement with the city of Seattle, becoming the Oklahoma City Thunder. In 2013, the New Orleans Hornets were renamed the Pelicans, and in 2014 the Charlotte Bobcats officially reclaimed the Hornets name and the history of the original Charlotte Hornets from 1988 to 2002.
Questions about National Basketball Association
How many teams are in the NBA and are there any in Canada?
The NBA currently consists of 30 teams. Twenty-nine are based in the United States and one is in Canada: the Toronto Raptors. The Raptors won the NBA championship in 2019, bringing the title to Canada for the first time. The league's very first game in 1946 was also played in Toronto.
Which team has won the most NBA championships?
The Boston Celtics have won the most NBA championships, with 18 titles as of 2024. Their most recent championship victory was in 2024. The Los Angeles Lakers are second with 17 championships. The Celtics' dominance was most pronounced from 1957 to 1969 when they won 11 titles in 13 seasons, including eight consecutive championships from 1959 to 1966, which remains the longest championship streak in American professional sports history.
Who is the current NBA commissioner?
Adam Silver has been the commissioner of the NBA since February 1, 2014. He succeeded David Stern, who served as commissioner for 30 years from 1984 to 2014. Silver, who was previously Stern's deputy, has overseen continued growth in the league's revenue, international expansion, and the launch of new ventures like the NBA 2K League. Commissioner Stern testified before the U.S. Congress in 2005 regarding the league's drug-testing program.
What was the Dream Team and why was it important?
The 1992 United States Olympic basketball team, nicknamed the 'Dream Team,' was the first to feature active NBA stars. It included Michael Jordan, Magic Johnson, Larry Bird, Charles Barkley, and eight other NBA players, along with college amateur Christian Laettner. The team won the gold medal at the Barcelona Olympics and was elected as a unit to the Naismith Memorial Basketball Hall of Fame. Its performance and star power are credited with significantly increasing international interest in basketball and the NBA.
What are the WNBA and the NBA G League?
The WNBA (Women's National Basketball Association) is a professional women's basketball league founded by the NBA in 1996. It currently features 12 teams and operates during the summer months. The NBA G League, originally known as the NBA Development League or D-League, is the NBA's official minor league system, focused on player development. Most NBA teams have a dedicated G League affiliate. The NBA also operates the NBA 2K League, an esports league, and co-operates the Basketball Africa League with FIBA.
When was the NBA founded?
The National Basketball Association was created on August 3, 1949, through the merger of the Basketball Association of America (BAA) and the National Basketball League (NBL). The league later adopted the BAA's history and considers its founding on June 6, 1946, as its own. The first game now recognized as part of NBA history was played on November 1, 1946, in Toronto between the New York Knickerbockers and the Toronto Huskies. This merger unified the two competing professional leagues, with BAA president Maurice Podoloff becoming the first president of the new NBA. The league initially had 17 franchises following the merger, which were consolidated over the next several years.
Sources and further reading
- National Basketball Association (Wikipedia)
- About Us (basketball.on.ca)
- National Basketball Association (NBA) | Sports and Leisure (ebsco.com)
Checked by the Garbutt Disposal desk. Last updated 2026-10-18.
