context: The Wright brothers, Orville (August 19, 1871– January 30, 1948) and Wilbur (April 16, 1867– May 30, 1912), were two American aviators, engineers, inventors, and aviation pioneers who are generally credited[1][2][3] with inventing, building, and flying the world's first successful airplane. They made the first controlled, sustained flight of a powered, heavier-than-air aircraft on December 17, 1903, four miles south of Kitty Hawk, North Carolina. In 1904–05 the brothers developed their flying machine into the first practical fixed-wing aircraft. Although not the first to build experimental aircraft, the Wright brothers were the first to invent aircraft controls that made fixed-wing powered flight possible.
question: When was the first airplane invented?
answers.text: December 17, 1903 December 17, 1903