Sapiens: A Brief History of Humankind · chapter 1 · id sapiens-c1-01-70000-years-ago-homo-sapiens-w

“70,000 years ago, Homo sapiens was just another insignificant animal with no special impact on the environment.”

contestedconfidence: high⚠ extracted by pipeline, re-audit pending

Receipts

McBrearty & Brooks (2000), Journal of Human Evolution 39(5):453-563DOI registry: valid

The Revolution That Wasn't: a new interpretation of the origin of modern human behavior. Evidence for modern behavior accumulates gradually across Africa from 300,000 BP onward.

Brown et al. (2009), Science 325(5942):859-862 -- Pinnacle Point heat-treated toolsFLAGGED: DOI not in registry

Heat treatment of silcrete at 164,000 BP demonstrates complex cognition and forward planning in early Homo sapiens, nearly 100,000 years before the supposed Cognitive Revolution.

Henshilwood et al. (2002), Science 295(5558):1278-1280 -- Blombos Cave engravingsDOI registry: valid

Engraved ochre pieces from Blombos Cave, South Africa, dated to approximately 77,000 years ago, demonstrate symbolic behavior before Harari's 70,000-year threshold.

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