Leonardo da Vinci (1452-1519) was a great lover of geometry, and devoted much time to it starting in his early forties. His most outstanding polyhedral accomplishment is the illustrations for Luca Pacioli’s 1509 book The Divine Proportion. In the printed version of the book are woodcuts based on Leonardo’s drawings. Here is the first printed “elevated” form of a Dodecahedron. For the elevated forms, each face is augmented with a pyramid composed of equilateral triangles.
