Portugal Preserves Hundreds of Ancient Olive Trees, One Estimated to be Over 3700 Years Old

TL;DR AI-generated A new method from the University of Trás-os-Montes e Alto Douro (UTAD) allows for the age determination of ancient olive trees. Hundreds of trees over 2000 years old have been certified in Portugal, including one in Vidigueira estimated to be over 3700 years old.