The National Basketball Association (NBA) is the pre-eminent men's professional basketball league in North America, and is widely considered to be the premier men's professional basketball league in the world. It has 30 teams (29 in the United States and 1 in Canada), and is an active member of USA Basketball (USAB), which is recognized by FIBA (also known as the International Basketball Federation) as the national governing body for basketball in the United States.
NBA Mark
The NBA logo was designed by a New York graphic designer, Alan Siegel, and first appeared in the NBA's official promotional materials in 1969. But the NBA official did not officially announced the logo designer. The sign is a silhouette of a basketball player with a lateral control; the entire logo consists of three colors, red, white and blue, which, like the MLB (American Major League Baseball) color, Siegel explained that in order to " In the two Union signs to create a visual harmony between ".
Year 1940
In 1946, the United States northeast and Midwest some large sports arena boss jointly set up the American Basketball Association (BAA), which includes the famous New York Madison Square Garden. BAA's competitors were the American Basketball League (ABL), the National Basketball League (NBL), etc., BAA first tried in the big city arena for the game. November 1, 1946, the Toronto Eskimo vs. New York Knicks is the first official NBA history game.
Year 1950
In order to encourage the attack, the Union in 1954 the introduction of 24 seconds device. If the ball fails to reach the basket within 24 seconds, the ball will be convicted of an offense and lose possession.
Year 1960
In 1967, the NBA was challenged by the American Basketball Association (ABA). This emerging professional league more emphasis on offensive, with openness and freedom to attract fans and players. Because at that time the NBA does not allow players not graduated college players directly into the Union, many very talented young people chose the ABA. NBA is more emphasis on university star, the legendary center "day hook" Kareem Abdul-Jabbar in 1969 to join the league. Union ecological aspects of the East is strong and weak, including the 60's all the champions are arranged by the East.
Year 1970
Although the ABA attracted Julius Erving talent such as star, but the end result of the lack of television contracts and financial problems and declared bankrupt. In 1976, the NBA received four ABA teams Indiana Pacers, San Antonio Spurs, New Jersey Nets (after the Brooklyn Nets) and the Denver Nuggets, the Union team reached 22 teams. The 1979-80 season, the NBA has adopted the ABA's three-point rule, the first draw the three-point line, three-point arc from the basket 23 feet (7.24 meters), 22 feet away from the basket (6.71 meters).