A man called Captain Joe Katanga. In 1960, climbing into a foil ballon, Captain Joe ascended 32 kilometers into the stratosphere. And then, armed only with a parachute, he jumped out.
He fell for 4 minutes and 36 seconds, reaching 740 miles per hour, before opening his parachute, 5 kilometers above the earth. It had never been done before, and has never been done since. He did it just because he could.