Mask of Vaikuntha Vishnu, late 5th century. Learn more about 5th century masks
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A prehistoric period characterised by the invention and use of stone tools by early humans, it began around 3.3 million years ago and ended between 8000–2000 BCE in various parts of the world with the advent of metal smelting technologies. Further divisions of the Stone Age classify the period into three distinct stages: Palaeolithic, Mesolithic and Neolithic.