1785: On June 15, Jean-Francois Pilatre de Rozier and a companion become hot-air ballooning’s first fatalities, after falling to their deaths when their hybrid hot-air-and-hydrogen balloon ignites over the English Channel. 1908: On September 17, during a demonstration flight for the U.S. Army, Orville Wright’s plane crashes near Fort Myer, Virginia. Wright suffers several brokenbones […]