Tragedy struck during a flight on Sept. 17, 1908, when the right propeller on the 1908 Flyer fouled a guy wire, causing the plane to crash to earth. Orville Wright was seriously injured, while Lt. Thomas E. Selfridge, along on the flight as a passenger, was fatally injured, thus becoming the first person to die as the result of an airplane accident. (U.S. Air Force photo)