Claims to the first powered flight

Several aviators have been claimed to be the first to fly a powered aeroplane. Much controversy surrounds these claims. It is generally accepted today that the Wright brothers were the first to achieve sustained and controlled powered manned flight, in 1903. It is popularly held in Brazil that their native citizen Alberto Santos-Dumont was the first successful aviator, discounting the Wright brothers' claim because their Flyer took off from a rail, and in later flights would sometimes employ a catapult. An editorial in the 2013 edition of Jane's All the World's Aircraft supported the claim of Gustave Whitehead. Claims by, or on behalf of, other pioneers such as Clement Ader have also been put forward from time to time.