Pickleball, the activity with the amusing identify, has been the swiftest-expanding activity in the U.S. over the past two decades, in accordance to the Sports and Conditioning Field Association. It’s now the formal activity of the point out of Washington, in which the activity was invented. What commenced as a summer months pastime is using on the trappings of a multifaceted industrial enterprise.   Pickleball’s origin story dates to 1965, when three fathers on Bainbridge Island, Washington, invented a new racket activity to occupy their teenagers. They blended the equipment they had on hand: a wiffle ball, pingpong paddles and a lowered badminton web. Decades later on, it’s grown into a activity…