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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The Statue of Liberty was a gift of friendship resulting from the diplomatic relationship between the United States and France.
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During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
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Grenades were invented in China over 1,000 years ago.
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Early Romans used to use porcupine quills as toothpicks.
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Romans used a plant called Silphium as contraception. They had so much sex that they drove it into extinction.
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