The first dunk was recorded in 1940 when a player named Bob Kurland, dunked the ball. The word is that he just thought it was a high percentage shot. I guess he thought that because there was no excitement in the dunk at that time.
Watch the Behind the Scenes in the link below! http://youtu.be/ST5CeJomhNY Lords Of Gravity is the acrobatic dunk team in this video, check out their youtube...