The American Basketball Association (NBA) was established in New York on June 6, 1946, and is composed of three men's professional basketball clubs and four of the four major professional sports leagues in North America. Bringing together the world's top players, is the world's highest level of basketball tournament. NBA's 30 teams belong to two coalitions: the Eastern Conference and the Western Union, each of which consists of three divisions, each with five teams. NBA games are divided into regular season and playoffs. Regular season competition to take the main, away system, each team in each season should be 82 ...