In December 1891, Dr. James Naismith, invented the sport known as basketball, to keep their pupils in good shape. At the beginning of the rules of basketball are quite simple and are written by the creator of the sport. The game was becoming increasingly known, and the rules changed. Soon basketball was known throughout North America. June 6, 1946 was founded Basketball Association of America, which later took the name of the autumn 1949 National Basketball Association.