What is the oldest tree food known to man and how long was it known?

I need to find information about the oldest tree food known to man from credible sources that discovered from analyzing the ages of trees. I am getting conflicted information on the Internet that it is the Date palm tree or the Walnut tree or Fig Tree or Olive Tree but i can’t find credible sources that would confirm either one. The sources must come from real professionals like archeologists and/or researchers from research or government institutions. Sources cannot come from blogs, guesses, dr Oz or sites trying to sell products.



  1. 0 Votes

    A 9,550 tree stands in Sweden. I am guessing it was discovered in 2008 because the article really doesn’t specify.

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