In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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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.
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Each year, around 24,000 Americans are bitten by rats!
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The Statue of Liberty is made out of copper. When originally built, it looked like a shiny new penny!
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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.
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The first semi-permanent settlements appeared in Florida around 5000 B.C.
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