In 1891, after Dr. James Nashmis invented basketball, basketball became a popular sport among the American people because of the hormonal beauty produced by muscle collision in the process of pit checking and the test of people's vision awareness, physical coordination and flexibility. Then in 1896, the world's first national basketball league, NBL, was founded, and then NBL started the history of professional basketball in the United States. However, given that the basketball rules were not ...