The parallel sides are called the bases of the trapezoid and the other two sides are called the legs or the lateral sides (if they are not parallel; otherwise there are two pairs of bases). A scalene trapezoid is a trapezoid with no sides of equal measure, in contrast to the special cases below.
It was designed and built by the Wright brothers. They flew it four times on December 17, 1903, near Kill Devil Hills, about four miles south of Kitty Hawk, North Carolina, US. Today, the airplane is exhibited in the National Air and Space Museum in Washington D.C.
Thanks to a coin toss, Orville was the first brother airborne. The brothers tossed a coin to see who would first test the Wright Flyer on the sands of Kill Devil Hills, North Carolina. Older brother Wilbur won the toss, but his first attempt on December 14, 1903, was unsuccessful and caused minor damage to the aircraft.