425+ Neolithic carved stone balls found across Scotland; purpose still unknown. Over 425 balls discovered to date Mainly found in Aberdeenshire, Scotland, with some in other parts of Scotland, Ireland, England, and one in a Norwegian medieval cairn Usually round, about the size of a tennis ball, with 3 to 160 protruding knobs

Over 425 carved stone balls have been found, mainly in Aberdeenshire but also across Scotland, Ireland, England, and one in Norway. Dating to roughly 4500-3000 BCE, these tennis-ball-sized stones feature 3 to 160 protruding knobs and were crafted from hard greenstone. Many have diameters differing by only one millimeter, suggesting uniformity mattered. Archaeologists have tested the ball bearing theory by building a transport system with wooden replicas and found the concept works, though detailed ornamentation would weaken structural integrity if used mechanically. Various theories propose ritual oracle balls, slingshot weapons, or megalithic building aids, but the purpose remains unresolved.

Key Facts

  • Over 425 balls discovered to date
  • Mainly found in Aberdeenshire, Scotland, with some in other parts of Scotland, Ireland, England, and one in a Norwegian medieval cairn
  • Usually round, about the size of a tennis ball, with 3 to 160 protruding knobs
  • Many made of greenstone, a general term for dark green igneous rocks
  • Some made of harder stone difficult to carve
  • Possible theories: ritual oracle ball, weapon (slingshot or bola), or ball bearings for transporting megalithic stones
  • Many balls have diameters differing by only one millimeter, suggesting uniform size was important
  • Archaeologists built a model transport system using wooden balls to test the ball bearing theory; the experiment found the concept works
  • Ornamentation on balls questions the functional theory as detailed carving would be unnecessary and weaken structural integrity
  • Replicas have been successfully reproduced using pecking or grinding techniques

Source: 6 #Ancient #Artifacts That #Archaeology Can't Explain by Inside Archaeology