Handcrafted Crystal Andreas Vesalius (1514 – 1564) was an anatomist, physician, and author of one of the most influential books on human anatomy, De humani corporis fabrica (On the Fabric of the Human Body). Vesalius is often referred to as the founder of modern human anatomy. This skeleton chart is a direct result of his early work. 2 1/2" X 4 1/4" felted bottom.