The first synthetic substance ever brewed on planet Earth may not have been a product of our own species but was concocted by a close relative as far back as around 200,000 years ago.
of black tar as a happy accident that Neanderthals simply scraped from surrounding rocks after burning birch bark. Others think the sticky, water-resistant material was carefully crafted in an underground oven long before our species learned the trick.
that"birch tar may document advanced technology, forward planning, and cultural capacity in Neanderthals." Two of the methods burned birch bark above ground, while three involved an underground oven of sorts.
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