The remains of several timber circles constructed over 4,500 years ago have been discovered at the Perdigões complex archaeological site in Portugal.
Source: https://www.livescience.com/ancient-timber-circles-discovered-portugal.html
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The remains of several timber circles constructed over 4,500 years ago have been discovered at the Perdigões complex archaeological site in Portugal.
Source: https://www.livescience.com/ancient-timber-circles-discovered-portugal.html