In 1963, the US Military created an artificial ring around Earth, similar to that of the planet Saturn. The ring was made of copper needles and was used for worldwide communications in the case that the Soviets disabled all other methods of communication.
26
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
In 1700s, the deer skin was a common medium of exchange between the trading settlers and the native Red Indians in America. This is how a buck became a slang for a dollar.
28
Ancient Romans at one time used human urine as an ingredient in their toothpaste.
37
Ancient Greeks believed that redheads turned into vampires after they died.
40
The first coast-to-coast telephone line was established in 1914.
33
A singing birthday card has more computing power than the allied forces in 1945.
30
