At the Kalambo Falls archaeological site in northeastern Zambia, archaeologists recovered specimens of ancient wood in the form of logs that had been preserved in waterlogged sand next to the Kalambo River for nearly a half-a-million years—or for 476,000 years, to be more exact. While the discoverers weren’t sure what they had found, a new study by archaeologists from the University of Liverpool and Aberystwyth University in the United Kingdom revealed that the logs were intentionally cut and shaped to be used as building materials. Using a new dating technology known as luminescence, the archaeologists were able to confirm the astonishing age of these incredibly ancient artifacts. [[{"type":"media","view_mode":"media_original","fid":"111892","attributes":{"alt":"The excavation team uncovering the oldest wooden structure (Professor Larry Barham, University of
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