According to Petri Liukkonen, this text "influenced deeply from the Early Renaissance onwards artists, thinkers, and architects, among them Leon Battista Alberti (1404–1472), Leonardo da Vinci (1452–1519), and Michelangelo (1475–1564)." Source: Internet
According to Alessandro Vezzosi, head of the Leonardo Museum in Vinci, there is evidence that Piero owned a Middle Eastern slave called Caterina. Source: Internet
Although never successful in creating a "flying machine", Leonardo da Vinci (1452–1519) was a keen observer of the anatomy and flight of birds, and made numerous notes and sketches on his observations as well as sketches of "flying machines". Source: Internet
Also in the 16th century, scientist and artist Leonardo da Vinci compared metabolism to a burning candle. Source: Internet
Almost as compulsive is the urge to add a second factoid along the lines of 'Leonardo Da Vinci believed that the human form displays the golden ratio.' Source: Internet
"And Leonardo Da Vinci was to Alberti as the finisher to the beginner, as the master to the dilettante. Source: Internet