Who Was Leonardo da Vinci?

Leonardo da Vinci was a gifted painter talented musician and dedicated scientist and inventor designing flying machines submarines and even helicopters.  Yet he had a hard time finishing things a problem anyone can relate to.  Only thirteen paintings are known to be his; as for the illustrated encyclopedia he intended to create all that he left were thousands of disorganized notebook pages.  Here is an accessible portrait of a fascinating man who lived at a fascinating time—Italy during the Renaissance.