A team of researchers from Leiden University in the Netherlands have discovered what appears to be the oldest known engraving in human history. The geometric marks were found on a fossilized mollusc shell that dates back approximately 500,000 years ago. In colonial-era Indonesia, 166 freshwater muscle shells were found at Trinil, a common digging ground … Continue reading 500,000-Year-Old Engraving Rewrites View Of Human History