Telephone Network

American scientists dug 50 meters down in the underground and discovered small pieces of copper.
After studying these pieces for a long time, America announced that the ancient Americans 25,000 years ago had a nation-wide telephone network.

Naturally, the Japanese government was not that easily impressed.
They ordered their own scientists to dig even deeper. 100 meters down they round small pieces of glass and they soon announced that the ancient Japanese 35,000 years ago already had a nation-wide fiber net.

Filipino scientists were outraged. They dug 200 meters down in the underground, but found absolutely nothing. They happily concluded that the ancient Filipinos 55,000 years ago had cellular telephones!!!