Chainsaws were derived from a tool originally intended to help deliver babies
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Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
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During the Black Plague, it was thought that bad smells were the cause of the plague. "Plague Doctors" therefore wore masks with long beak-like noses stuffed with flowers or smoke to hide the smells.
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