"Last fall, Egyptian archaeologists dug down 300 feet
and found traces of copper wire dating back 1000 years.
They concluded that their ancestors had a telephone
network a millennium ago.

  Not to be outdone, Sudanese scientists drilled
down 400 feet, finding traces of optical fiber that
were 2000 years old. They gloated that their ancestors
had had digital phones 1000 years before
the Egyptian analog system.

A week later an Ethiopian scientist reported, "after
digging to 500 feet, Ethiopian scientists have found
absolutelynothing. This proves conclusively that 3000
years ago, our civilisation was the most advanced,
becuase our ancestors were already using wireless phones."