Parachuting, or skydiving, is the action sport of exiting an aircraft and returning to Earth with the aid of gravity, then slowing down during the last part of the descent by using a parachute (or other means - in 2012, British stuntman Gary Connery used a wing suit and a specially prepared box landing rig for this[1]). It may or may not involve a certain amount of free-fall, a time during which the parachute has not been deployed and the body gradually accelerates to terminal velocity. The history of skydiving starts with Andre-Jacques Garnerin who made successful descents using a canvas canopy and small basket, tethered beneath a hot-air balloon. The first intentional freefall jump with a ripcord-operated deployment is credited to Leslie Irvin in 1919 ; however, the stunt jumper Georgina "Tiny" Broadwick claimed to have made earlier freefall jumps simply by cutting her static-line and manually pulling the remaining cord-end after falling away from the aircraft. The military developed