The American Basketball Association (ABA) was a men's professional basketball league from 1967 to 1976. The ABA merged into the National Basketball Association (NBA) in 1976, resulting in four ABA teams joining the NBA and the introduction of the NBA 3-point shot in 1979.

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American Basketball Association (ABA)

Logo of the ABA
Sport	Basketball
Founded	1967
Ceased	1976 (merger)
No. of teams	11
Country	United States
Last champion(s)	New York Nets (2nd title)
Most titles	Indiana Pacers (3 titles)

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The ABA was conceived at a time stretching from 1960 through the mid-1970s when numerous upstart leagues were challenging, with varying degrees of success, the established major professional sports leagues in the United States. Basketball was seen as particularly vulnerable to a challenge; its major league, the National Basketball Association, was the youngest of the Big Four major leagues, having only played 21 seasons to that point, and was still fending off contemporary challenging leagues (it had been less than five years since the American Basketball League (ABL) shut down). According to one of the owners of the Indiana Pacers, its goal was to force a merger with the more established league. Potential investors were told that they could get an ABA team for half of what it cost to get an NBA expansion team at the time. When the merger occurred, ABA officials said their investment would more than double.^[1]

The ABA distinguished itself from its older counterpart with a more wide-open, flashy style of offensive play, as well as differences in rules — a 30-second shot clock (as opposed to the NBA's 24-second clock, though the ABA did switch to the 24 second shot clock for the 1975–76 season) and use of a three-point field goal arc, pioneered in the earlier ABL.^[2] Also, the ABA used a colorful red, white and blue ball, instead of the NBA's traditional orange ball. The ABA also had several "regional" franchises, such as the Virginia Squires and Carolina Cougars, that played "home" games in several cities.^[3]

In the 1973–74 season, the ABA also adopted the no-disqualification foul rule: instead of fouling out after six infractions, when a player is charged with his seventh or succeeding fouls, the opposing team retains possession and the offended team attempts any free throw.^[4]

The ABA also went after four of the best referees in the NBA: Earl Strom, John Vanak, Norm Drucker and Joe Gushue, getting them to "jump" leagues by offering them far more in money and benefits. In Earl Strom's memoir Calling the Shots, Strom conveys both the heady sense of being courted by a rival league with money to burn — and also the depression that set in the next year when he began refereeing in the ABA, with less prominent players performing in inadequate arenas, in front of very small crowds. Nevertheless, the emergence of the ABA boosted the salaries of referees just as it did the salaries of players.

However ABA Teams like Nets, Colonels, Pacers, Spurs, Nuggets and Stars, especially in latest seasons, registered higher attendance on average than most of NBA teams at that time (excluding Lakers, Knicks, Celtics, SuperSonics and Bucks).^[5]

The freewheeling style of the ABA eventually caught on with fans, but the lack of a national television contract and protracted financial losses would spell doom for the ABA as an independent circuit. In 1976, its last year of existence, the ABA pioneered the now-popular slam dunk contest at its all-star game in Denver.^[6]

The league succeeded in forcing a merger with the NBA in the 1976 offseason. Four ABA teams were absorbed into the older league: the New York Nets, Denver Nuggets, Indiana Pacers, and San Antonio Spurs. As part of the merger agreement, the four teams were not permitted to participate in the 1976 NBA draft. The merger was particularly hard on the Nets; the New York Knicks were firmly established in their arena, Madison Square Garden, and would not permit the Nets to share dates there. For drawing audience away from the Knicks, the Nets were forced to pay $4.3M to the Knicks organization. The Nets offered league superstar Julius Erving instead but the Knicks declined. The Nets had to settle for an arena in Piscataway, New Jersey and, to meet expenses, were forced to sell the contract of Erving to the Philadelphia 76ers.

Two other clubs, the Kentucky Colonels and the Spirits of St. Louis, were disbanded upon the merger, with each getting a buyout: the Colonels received a one-time buyout that owner John Y. Brown, Jr. used to purchase the NBA's Buffalo Braves, while the Spirits owners negotiated a cut of the other ABA teams' television revenues in perpetuity. This deal netted the ownership group of the Spirits over $300M over nearly four decades due to a large increase in television revenues. In 2014, the NBA and the Spirits ownership agreed to phase out future payments in exchange for a one-time payment of $500M, making the total value for the deal over $800M.^[7] The seventh remaining team, the Virginia Squires, received nothing, as they had ceased operations shortly before the merger. The players from the Colonels, Spirits, and Squires were made available to NBA teams through a dispersal draft; the four teams absorbed by the NBA were allowed to choose players from this draft.^{[citation needed]}

One of the more significant long-term contributions of the ABA to professional basketball was to tap into markets in the southeast that had been collegiate basketball hotbeds (including North Carolina, Virginia, and Kentucky). The NBA was focused on the urban areas of the Northeast, Midwest and West Coast. At the time, it showed no interest in placing a team south of Washington, D.C, other than the Atlanta metropolitan area where the NBA's Hawks franchise relocated from St. Louis in 1968.

Slam Dunk Contest

The ABA pioneered the advent of the now popular NBA slam dunk contest at the final ABA All-Star Game in 1976.^[16] The game was held in Denver, and the owners of the ABA teams wanted to ensure that the event would be entertaining for the sellout crowd of 15,021 people.^[12][16] The ABA and NBA had begun to discuss a possible merger,^[17] and the ABA owners wanted to establish the viability and success of their league.^[12] The Dunk Contest operated as a means of unique halftime entertainment that displayed the style and excitement that the ABA players brought to the game. The dunk contest was held at halftime of the All-Star game and the contestants were Artis Gilmore, George Gervin, David Thompson, Larry Kenon, and Julius Erving.^[16] The winner of the contest received $1,000 and a stereo system.^[12] Julius Erving went on to win the competition by completing the now famous free throw line dunk. The Slam Dunk Contest would make its way to the NBA in 1976–77 as a season-long competition for that season only, and on a permanent basis as a standalone event as part of the NBA All-Star Weekend in 1984.

Of the original 11 teams, only the Kentucky Colonels and Indiana Pacers remained for all nine seasons without relocating, changing team names, or folding. However, the Denver Larks/Rockets/Nuggets, a team that had been planned for Kansas City, Missouri, moved to Denver without playing a game in Kansas City due to the lack of a suitable arena. In addition to the four surviving ABA teams, eight current NBA markets have ABA heritage: Utah, Dallas, Houston, Miami, New Orleans, Memphis, Minnesota, and Charlotte all had an ABA team before their current NBA teams.^[18]

Timeline

With the ABA cut down to seven teams by the middle of its final season, the league abandoned divisional play.

In 1999, a new league calling itself the ABA 2000 was established. The new league uses a similar red, white and blue basketball as the old ABA, but unlike the original ABA, it does not feature players of similar caliber to the NBA, nor does it play games in major arenas or on television as the original ABA did.

• ABA–NBA merger
• ABA All-Star Game
• American Basketball Association (2000–present)
• List of defunct sports leagues
• Loose Balls, a 1990 book about the history of the ABA written by Terry Pluto
• Semi-Pro, a 2008 comedy film about the ABA starring Will Ferrell
• World Hockey Association, another league that intended to compete with its professional counterpart, the NHL, and eventually merged with that league
• American Football League, another league that intended to compete with its professional counterpart, the NFL, and eventually merged with that league