who worked with manned gliders in the 1890's
Otto Lilienthal Otto Lilienthal (23 May 1848 – 10 August 1896) was a German pioneer of aviation who became known as the flying man[2]. He was the first person to make well-documented, repeated, successful flights with unpowered airplanes.[3] Newspapers and magazines published photographs of Lilienthal gliding, favorably influencing public and scientific opinion about the possibility of flying machines becoming practical. On 9 August 1896, his glider stalled and he was unable to regain control. Falling from about 15 m (50 ft), he broke his neck and died the next day, 10 August 1896.