Scottish Neolithic stone spheres encode all five Platonic solids 3000 years before Plato

Scottish carved stone balls dating to the Neolithic (circa 5000 years old) are housed in Edinburgh museums and some are exquisitely polished. While the geometric carvings and patterns on these enigmatic objects have inspired various theoretical interpretations, claims that they contain representations of all five Platonic solids remain debated among scholars. Keith Critchlow, a mathematician and art historian, suggested some may encode geometric principles — though this interpretation is not widely accepted. The claim that tetrahedral forms appear most commonly or that some combine octahedron and cube geometry simultaneously reflects one particular interpretive framework rather than established archaeological consensus.