...Highlights of this day in history

Parachutes at the dawn of the aviation age were bulky and, inconveniently, had to be pre-opened. Among those trying to improve upon their design was French tailor Franz Reichelt. He had some success testing his designs on dummies, but he had no evidence that his parachute would work with a real person when he jumped from the Eiffel Tower before a crowd of spectators and reporters. The chute failed to open, and he plummeted to his death. How had he convinced the authorities to allow the jump? Discuss