In 1896, the first American basketball organization "National Basketball league (the NBL)" set up, but it was not perfect basketball rules, organizations are not perfect, often a player in a season can represent some team, after a few After last season, the organization has existed in name only.

   1946 Month 6 Day 4 years, from the United States Boston Garden boss Walter initiated the establishment of the "American Basketball Association (abbreviation BAA)", Brown made the first modern professional basketball and later became the cornerstone of the two high-paying system and contract system, it means a system of well-paid professional basketball must have strong financial support, so that to maintain at a high level on competition to attract the audience to survive. Contract system is that a player can only be one club and signed a contract and set up the system's reserves in order to prevent players to leave when suddenly suffered.

  1949, in Brown's efforts, two American basketball organizations BAA and NBL merged into the "National Basketball Association (NBA)". Brown also became well-known founder of the Boston Celtics. NBA owners set up 17 teams, divided into three division competition, from NBL's Minneapolis Lakers 2.09 meters of height to rely on the United States first Jorge help center was the first NBA Championship season.

   1952 years, NBA center Jorge in order to limit the first scoring ability to the basket three seconds from the restricted area width of 6 feet to 12 feet to expand. To 60 years, another super-center because of the emergence of Chamberlain, NBA restricted area will extend to 16 feet width. NBA teams because of the leading score at the use of delaying tactics from time to time, so that game should not attract viewers, starting from the 1954-1955 season, NBA begin a 24-second system, that is, each team for each offense shall not be more than 24 seconds.

 Starting from the 1954-55 season, NBA by natural selection only the eastern and western league division two league. Among them, the league was divided into the eastern part of the Atlantic District, Central District; Western Union was divided into the Central and Western District, the Pacific area.

 1967, a new basketball organization ABA (American Basketball Association) was set up permanent Jorge the first President. ABA red, white, and blue basketball, and a long shot one-third of the system also held an annual dunk contest. These measures are not allowed in the NBA.

 1973, the United States CBS 27 million U.S. dollars to buy the 3-year NBA game broadcasts, so that the first NBA game took to television, but do not have time because of the conditions of live, so can only play the video.

 1976 years, but because of poor management, ABA has been the United States annexation of NBA teams to 22. Since then, NBA basketball industry in the United States to create monopolies.

  1979 onwards, NBA begin to implement the system 3 hours long shot. In order to avoid disparity in the strength of the team too much, NBA set up the annual "NBA Rookie selection system", will be the year's graduates ranked according to levels, then by the club by the league last year ranking as well as the final ballot followed by the selection, ranking first on the latter election, each round each team can only select one, thus ensuring the strength of the weakest teams get the highest levels of New Horizons, the election to the weak star in the new season are often reborn . Team because of its wealth in order to avoid monopoly star players with high salaries, NBA provides each team's total salary restrictions. Such as with a lot of money to buy the star, while on the other can not afford to buy quality players. This system ensures that the best average distribution of stars at various teams so that each team is very close to power. If we say that "high pay" and "contract system" are the two cornerstones of NBA, and that "Youngstars selection" and "salary limits" is to ensure that the NBA game intense and exciting race will be the unpredictability of many American fans attracted to the basketball court. NBA League transfer system is also implemented, NBA players may not trade, only to change people. From season start to the first 16 months only 9 o'clock Thursday night, the team players can be freely exchanged. From then until the end of regular season, the team all the "freeze." NBA transfer contracts are exchanged together.

 1980, the Dallas Mavericks joined the NBA.

 1988, the New Orleans Hornets and Miami Heat joined the NBA.

 1990, the Orlando Magic and Minnesota Timberwolves joined the NBA.

 1995, the two Canadian teams to join NBA, Toronto Raptors and Vancouver Grizzlies (later renamed as the Memphis Grizzlies), which NBA team to reach 29.

 2004, the Charlotte Bobcats add teams, the team reached 30.

 2005 years, blew out the first 58 birthday candles, cake pieces in 2005 are on the latest version of the NBA map. Charlotte Bobcats, has become a lavish cream a cherry on another. Thirty is not old texture precipitation rings, but the memory expansion of the new time and space, from 1946-2004, the team bar code from No.11 to No.30, the unprecedented scale of the NBA

 2006, the American International Group, Google, Oracle, Yahoo, Telstra, Shell UK, San Wang, Philips, , Huaqi  and so on banks to become an NBA sponsors.