Discovery of immense fortifications dating back 4,000 years in northwestern Arabia
The North Arabian Desert oases were inhabited by sedentary populations in the 4th and 3rd millennia BCE. A fortification enclosing the Khaybar Oasis—one of the longest known going back to this period—has just been revealed by a team of scientists from the CNRS and the Royal Commission for AlUla (RCU)....
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