Symbols found carved into 40,000-year-old artifacts may be precursor to writing

Sculptures and tools from the Stone Age show markings that could be an early precursor to written language, according to a new analysis.
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Stone Age humans were picky about which rocks they used for making tools, study finds

WASHINGTON (AP) — Early human ancestors during the Old Stone Age were more picky about the rocks they used for making tools than previously known, according to research published Friday. Not only did ...
Earth.com

Stone Age symbols may have encoded information long before writing

New research shows early humans created structured ancient symbol systems 40,000 years ago, long before formal writing ...
Yahoo

Early humans relied on simple stone tools for 300,000 years in a changing east African landscape

Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago. The selection of rock type depended on how easily the material could be ...