The Taj Mahal took 20 years and 20 thousand men to finish!
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In 1799, a boy found a 17lb. rock in a creek in North Carolina and used it as a doorstop. It was actually gold.
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The oldest patented company logo is the red triangle of Bass beers!
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The first semi-permanent settlements appeared in Florida around 5000 B.C.
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The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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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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