jan 1, 427 BC - *G: Birth of Plato
Description:
Greece: Platonic solids. First four are made of triangles. Each assigned an element. The last is the dodecahedron, which Plate remarks that "the for used it for arranging the constellations on the whole heaven".Added to timeline:
Date:
jan 1, 427 BC
Now
~ 2455 years ago