Archaeologists discover oldest wooden structure
How do they know the wood was used 476,000 years ago, as opposed to a human 6000 years ago finding and using some 470,000 year old wood? This gives a hint:> They used new luminescence dating techniques, which reveal the last time minerals in the sand surrounding the finds were exposed to sunlight, to determine their age.... but it seems like there might be other explanations for that sand being there?