NBA is the abbreviation of National Basketball Association. Founded on June 6th, 1946. When it was founded, it was called BAA, which is the American Basketball Association. It was established by the owners of 1 1 ice hockey venues in order to prevent the venues from being idle outside the ice hockey competition. When BAA was founded, there were *** 1 1 teams: new york Knicks, Boston Celtics, Washington Congress, Chicago Bucks, Cleveland Rebels, Detroit Falcon, Philadelphia Warriors, Pittsburgh Iron Man, Providence Steam, St. Louis Bomber, and Toronto Eskimo. 1949, BAA annexed another league (NBL) at that time and changed its name to NBA. 1949-50 season, NBA*** 17 team. 1976 NBA annexed American Basketball Association (ABA), and the number of teams increased to 22. 1980 Dallas Mavericks joined the NBA. 1988, Charlotte Hornets and Miami Heat joined the NBA. 1990 Orlando Magic and Minnesota Timberwolves joined the NBA. 1995 Two Canadian teams joined the NBA, Toronto Raptors and Vancouver Grizzlies, bringing the number of NBA teams to 29. Basketball History Basketball is a kind of ball game, in which the ball is used to shoot at a high-hanging target. Because the basket full of water was originally the target of throwing, it was named "basketball". Modern basketball has developed into a competitive activity with flexible technology, ingenuity and changeable tactics. Playing basketball can promote the all-round development of human strength, speed, endurance and flexibility, and improve the functions of internal organs, sensory organs and nerve centers; It is of great benefit to cultivate qualities such as courage, wit, collectivism and organizational discipline. Development Overview Basketball was founded in 189 1 by Dr. J. naismith, a physical education teacher at the YMCA Training School in Springfield, Massachusetts, USA. At first, he nailed two peach baskets to the railing of the stand in the key room, and the upper edge of the peach baskets was 3.04 meters from the ground. There is a football as a game tool, which is thrown to the basket. Throw the ball into the basket and score 1 point, and decide the outcome according to the score. Every time you throw the ball into the basket, climb the ladder, take it out and start the game again. In the future, the bamboo basket will be gradually changed into an iron basket with a movable bottom, and then a net will be hung under the iron ring. By 1893, nearly modern rebounds, hoops and nets have been formed. In the initial basketball game, there were no strict restrictions on the number of people, the size of the venue and the time of the game. As long as the number of participants is equal. At the beginning of the game, the players of both sides stood outside the two end lines, and the referee blew the whistle and threw the ball into the center of the court. The two sides ran to the court to grab the ball and started the game. The bearer can run to the basket with the ball and shoot. The first person to reach the predetermined score wins. 1892, naismith formulated 13 rules of the game. The main rules are no running with the ball, no rough movements and no hitting the ball with your fist. Otherwise, it is judged to have violated the rules for three consecutive times, and the score is 1. The competition time is the first half 15 minutes; The size of the venue is also stipulated. The number of players in the game is gradually reduced to 10, with 9 or 7 players per team. 1893 is set to 5 players per team. 1904 The 3rd Olympic Games, the basketball exhibition match was held for the first time 1. 1908, the United States formulated a unified national basketball rule, which was published in different languages and distributed around the world. In this way, basketball has gradually spread all over America, Europe and Asia, becoming a worldwide sport. 1936 1 1 The Olympic Games listed men's basketball as an official event, which unified the rules of the world basketball competition. Since then, during the period of 1948, the rule has been revised several times. The important change related to the current rules is that after scoring, the jump ball in the middle circle is changed to the end line of the losing team in the backcourt. The attacker must push the ball to the frontcourt within 10 second; After the ball enters the frontcourt, it is not allowed to return to the backcourt; Offenders are not allowed to stay in the "forbidden zone" for 3 seconds; When the shooter was violated, 1 made a free throw, and 2 missed. In the basketball matches of 1952 and 15 and 16 Olympic Games, the International Amateur Basketball Federation twice expanded the "forbidden area" (also known as "three zones") of the basketball court. It is also stipulated that a team must shoot within 30 seconds after controlling the ball. In the early 1960s, there were regulations on 10 seconds and the return of the ball to the backcourt, which were suspended for a time because 1960 17 cancelled the sideline midpoint after the Olympic Games. 1964 After the Olympic Games, the midfield line will be restored and these regulations will continue to be implemented. In 1977, it is added that after each team committed 10 foul, it made two free throws for defensive foul, shot prevention 1 foul, and missed free throws 1 penalty. After 198 1, 10 fouls, the penalty was reduced to 8 times. Obviously, the change of personnel and the development of skills and tactics have caused the change of rules, and the change of rules has promoted the further development and change of personnel, skills and tactics. Especially since the late 1950s, the changes of rules have constantly put forward new and higher requirements for the offensive and defensive speed of basketball matches, athletes' body, skills, tactics, will and style, and promoted the rapid improvement of basketball technical level. The women's basketball was listed as an official event only in197621Olympic Games. Basketball was introduced to China from the Chinese YMCA in Tianjin around 1896, and then to the YMCA in Beijing and Shanghai. 19 10 After the men's basketball exhibition match was held in the National Games, basketball activities were gradually carried out in universities and middle schools in major cities across the country, especially in Tianjin, Beijing and Shanghai. The rules of the game were simple at that time. Draw a middle circle with a diameter of about 1 m in the center of the court. The center player must put a hand when jumping the ball. The technology is also simple. After the jump ball in the middle circle, whoever receives the ball dribbles it himself, and shoots if he exceeds the defender. I was just dribbling in a straight line. The passing method is to pass the ball with one hand and put your hands on your chest. Running shot is a one-handed low-handed layup. The vertical racket is a low-handed racket with both hands in front of the stomach, no matter how far or near. 1925 or so, the five offensive and defensive athletes have a clear division of labor, center to center, defender to striker, someone staring at people, staring at their opponents. But the striker's duty is to attack and shoot, regardless of retreat; The defender's duty is only to defend the volley, regardless of shooting. Strikers and defenders rarely run all over the field, only the center should give consideration to both offense and defense. Later, it was gradually changed to 1 two defenders with assists (mobile defenders), and 1 people stayed in the backcourt (fixed defenders). The two strikers have also become 1 people specialize in sneak attack and fast break in the frontcourt, 1 people retreat to the backcourt to help defend. Technical movements have also developed, such as one-handed running shooting and expert shooting, two-handed standing shooting on the chest, one-handed passing and two-handed touching the ground, two-handed dribbling alternately dodging defense and advancing beyond defense. The restricted area and the free throw line have been added to the rules. A player who commits four fouls will be disqualified, and any player with 1 can be punished by the captain. The competition time is divided into the first half and the second half with an interval of 10 minute. After each shot or free throw, jump the ball to the middle circle and start the game again. Since 1926, the basketball level in China has been greatly improved. The development of basketball has evolved into one of the most artistic and charming ways of playing, that is, "street basketball". This kind of drama truly embodies the wisdom of human beings perfectly. "Street Basketball" originally originated from the street basketball courts in the slums of Washington, D.C. and new york City in the early 20th century, hence its name. Street basketball is also called black basketball because all the people who participated in it in the early days were black. With the joint efforts of the participants in the two places, street basketball has also developed rapidly and formed its own organizations such as the Washington Student Sports Association and the Black Basketball League. In addition to the exaggerated and creative basketball style, street basketball is also different from the mainstream basketball at that time: after each street basketball game, the audience will rush to the basketball court and dance with the players accompanied by black pop music played by the band. After World War II, with the rapid increase of population in major cities in the United States, street basketball as a leisure form has been accepted and welcomed by more and more people. Businessmen predicted the potential commercial value of "street basketball" and packaged this amateur league into a high-level professional league. In 1950s, Holcomb Rucker, a native of new york, held the first formal street basketball game in Harlem, Manhattan, new york. NBA Hall of Fame players Dr. J and Chamberlain both left their own figures in Harlem's street basketball game. Harlem is also used in the name of the team by many famous street basketball teams because of its special significance in the history of street basketball. Allen iverson, an active player in NBA, was the first to bring the basketball style of street basketball into NBA. When Iverson 1996 first entered the NBA, his unique basketball style was not immediately recognized by everyone. NBA legend charles barkley even called Iverson "the best juggling rookie of the year" instead of "the best NBA rookie of the year". But on 200 1, Iverson led the Philadelphia 76 ers into the NBA finals, and the development of street basketball finally reached a new climax. The most championship rings in NBA are in 13 1957- 1969 season, Bill? Russell led the Boston Celtics to win 1 1 NBA championship, so he won 1 1 NBA championship rings, which is the most in NBA history. 195111.2. After six overtime, the Rochester Royals finally beat Indiana 75-73. Three-point shooting record In the history of NBA, the individual three-point shooting record was set by Magic's Scott in the Eastern Conference Finals 1996. Throughout the game, he hit 1 1 3-pointers. The team's single-game three-pointer record was set by the Sonics at 1995- 1996 in the second playoff game against the Rockets, and * * * hit 20 three-pointers (27 shots). The highest personal 3-point shooting rate in a single season is Bull defender Steve Cole, accounting for 52.4%. Won the championship and runner-up in 1996 and 1997 NBA long-distance shooting competitions. The tallest and shortest players in NBA history are Manuel Bor (Zairian) and Gilles Murison (Romanian) of the former Washington Bullets, both of whom are 2.3 1 meter. The shortest player is Tiny Boggs, only 1.60 meters. The highest score in NBA history 1983 12 13, Detroit Pistons 186: 184 beat Denver Nuggets, which is the highest score in NBA. The team that won the most championships in NBA history In the 50-year history of NBA, the team that won the most championships was Boston Celtics, which won 16 championships. Followed by the Lakers, won the 1 1 championship. Kevin garnett, the player with the highest contract amount in NBA, became the player with the highest contract amount in NBA history. 1996, he signed a 7-year contract with the timberwolves worth 65438 USD +0.2 1 100 million. The highest individual score in NBA history. In the history of NBA, the highest individual score in a game is 100, and the highest individual total score in a single season is 4029. These two records were set at 1963 and 1962 respectively, both of which were created by wilt chamberlain, the "emperor superstar". Among the shortest players who can dunk in the NBA, the shortest player who can dunk is "Soldier" Scott Webber, who won the NBA Dunk Contest with 1996 and was only 1.70 meters tall. According to NBA data, Weber had a record of dunking in high school when he was 16 years old and only 1.60 meters tall. His original vertical jump height is 1.33 meters, and the run-up touchdown height is 3.60 meters. The highest-paid player in the NBA is Michael Jordan. 1996, although his annual salary was only $4 million, his advertising income exceeded $40 million. According to the income ranking of athletes in the world published by Forbes magazine, Jordan ranked first in the NBA with $52.6 million.