This game was invented by Canadian physical education teacher James Naismith in December 1891. Naismith sought to create an activity for young people to perform in a closed gym during the winter. Thus was born basketball, whose games currently last 40 minutes (four periods of 10 minutes each). The exception to this rule is the American league of the National Basketball Association (NBA), considered the best in the world, whose games last 48 minutes (four 12-minute periods). It should be noted that there are several different rules between the NBA and the Fédération Internationale de Basketball (FIBA), the body that governs this sport internationally.