Ancient Wireless Communication

After digging to a depth of 100m last year, Russian scientists found traces of copper wiring dating back 1000 years and came to the conclusion that their ancestors already had a telephone network one
thousand years ago.
So as not to be outdone, in the weeks that followed, American scientists dug 200m, and headlines in the US newspapers read:- "US scientists have found traces of 2000 year old optical fibers, and have concluded that their ancestors already had advanced high-tech digital telephone 1000 years earlier than the Russians."
One week later, the Egyptian press reported the following:- "After digging as deep as 500m, egyptian scientists have found absolutely nothing. They have concluded that 5000 years ago, our ancestors,
the Pharos were already using wireless communication (mobile phones).
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