During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
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Teddy bears were named after U.S. President Theodore 'Teddy' Roosevelt.
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One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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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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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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According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
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The largest hotel suite in the world is located 22 stories under the surface in the Grand Canyon Caverns. One night for two people in this 65 million year old cave is $700.
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