Leonardo da Vinci created masterpieces of art and sculpture. Equally remarkable, his aggregate achievements in engineering, mathematics, anatomy, geology, physics, music, military technology, aeronautics, and a wide range of other fields, not only stood without peer in his own time, but were strikingly prescient for the distant future.
He recorded his forward-looking ideas in thousands of notebook pages, known as codices. He produced one codex entirely on flight in 1505-1506, the Codex on the Flight of Birds.
Source: http://ciaoamericamagazine.com