Logs shaped with sharp tools on border of river predate rise of modern humans and may have formed walkway or platform
Researchers have discovered remnants of what is thought to be the world’s oldest known wooden structure, an arrangement of logs on the bank of a river bordering Zambia and Tanzania that predates the rise of modern humans.
The simple structure, made by shaping two logs with sharp stone tools, may have formed part of a walkway or platform for human ancestors who lived along the Kalambo River nearly 500,000 years ago.
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