German scientists dug 50 meters underground and discovered small pieces of copper. After studying these pieces for a long time, Germany announced that the ancient Germans, 25,000 years ago, had a nationwide telephone network.
Naturally, the British government was not that easily impressed. They ordered their own scientists to dig even deeper. 100 meters down, they found small pieces of glass, and they soon announced that the ancient Brits, 35,000 years ago, already had a nationwide fibre-optic network.
Irish scientists were outraged. They dug 200 meters underground, but found absolutely nothing. They concluded that the ancient Irish, 55,000 years ago, had cellular telephones.