Fragments of iron pyrite, a rock that can be used with flint to make sparks, were found by a 400,000-year-old hearth in eastern Britain. (Jordan Mansfield | Courtesy Pathways to Ancient Britain ...
Four hundred thousand years ago, near a water hole on grasslands bordering a forest in what is now southern England, a group of Neandertals struck chunks of iron pyrite against flint to create sparks, ...
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