James Naismith was a Canadian-American physical educator, physician, chaplain, sports coach and innovator. He invented the game of basketball at age 30 in 1891. He wrote the original basketball rule book and founded the University of Kansas basketball program. Naismith lived to see basketball adopted as an Olympic demonstration sport in 1904 and as an official event at the 1936 Summer Olympics in Berlin, as well as the birth of the National Invitation Tournament and the NCAA Tournament. Born in Canada to Scottish immigrants, Naismith studied physical education at McGill University in Montreal before moving to the United States, where he designed the game in late 1891 while teaching at the International YMCA Training School in Springfield, Massachusetts. Seven years after inventing basketball, Naismith received his medical degree in Denver in 1898. He then arrived at the University of Kansas, later becoming the Kansas Jayhawks' athletic director and coach.

https://en.wikipedia.org/wiki/James_Naismith