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Hucksters make bucks purveying inhalers touted to protect people from the poisonous cyanogen vapors emitted by Halley’s Comet
In 1910, hucksters make a few bucks purveying inhalers touted to protect people from the poisonous cyanogen vapors emitted by Halley’s Comet.
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Source: National Aeronautics and Space Administration
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