Basketball in the United States

Basketball in the United States
Basketball in the United States
	Los Angeles Lakers versus Boston Celtics, 1987 NBA Finals
Country	United States
Governing body	USA Basketball
National team(s)	United States
Registered players	24.3 million
Club competitions
	List Men's:; National Basketball Association (Major League); NBA G League (first tier Minor League) ; East Coast Basketball League (second tier Minor League); Premier Basketball League (second tier Minor League); The Basketball League (second tier Minor League); American Basketball Association (semi-pro); Florida Basketball Association (semi-pro); Universal Basketball Association (semi-pro); United Basketball League (semi-pro); Women's:; Women's National Basketball Association (Major League); Women's Basketball Development Association (first tier Minor League); Athletes Unlimited Basketball (second tier Minor League);
International competitions
	National teams:; Summer Olympics ; FIBA World Cup ; FIBA Women's World Cup; FIBA U-19 Basketball World Cup; FIBA U-17 Basketball World Cup; FIBA AmeriCup; FIBA Women's AmeriCup; Clubs:; FIBA Intercontinental Cup

The National Basketball Association (NBA) is a professional basketball league that governs most levels of basketball in the United States. Basketball is the second most popular sport in the United States (counting amateur levels), after American football. In terms of revenue, the NBA is the third most profitable sports league in the United States and the world, after the National Football League (NFL) and Major League Baseball (MLB). Basketball was invented in 1891 by Canadian physical education teacher James Naismith in Springfield, Massachusetts.