Hundreds of years ago, the Aztecs of Mexico and the people of Nicaragua believed gods lived in volcanoes. They would sacrifice beautiful young girls to these powerful gods.
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Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
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Grenades were invented in China over 1,000 years ago.
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The site where the Parthenon was built had to be cleared of hundreds of dinosaur bones (then called giants' bones) before construction could begin.
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