Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
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Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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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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Peanut butter and jelly sandwiches were originally considered a delicacy, only enjoyed by those of the upper class.
9
Romans used a plant called Silphium as contraception. They had so much sex that they drove it into extinction.
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Rio de Janeiro was once capital of Portugal, making it the only European capital outside of Europe.
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