What made the hatter mad?
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Published in Daily Trivia
More than 100 years ago, the felt hat makers of England used mercury to stabilize wool. Most of them eventually became poisoned by the fumes, as demonstrated by the Mad Hatter in Lewis Carroll's Alice in Wonderland. Breathing mercury's fumes over a long period of time will cause erethism, a disorder characterized by nervousness, irritability, and strange personality changes.
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