Erethism - Wikipedia
The Mad Hatter | Muppet Wiki | Fandom
The Mad Hatter has a basis in real history. In the 18th and 19th centuries, mercury was used to treat felt used in the produc… | Interesting history, History, Weird
The Mad Hatter… Its REAL Meaning, Not a Character in a Children's Book
Poisons Part I: The Mercurial World of Felt
/cdn.vox-cdn.com/uploads/chorus_asset/file/8336295/old_fashioned_beaver_hats.jpg "The science behind S-Town's mercury poisoning mystery - Vox")
The science behind S-Town's mercury poisoning mystery - Vox
TIL: Mercury was required for felting fabrics, especially hats. Hatters in the 1800's had chronic mercury toxicity that caused mental instability thus dubbing the term “mad hatters disease” or “mad as a
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Mad as a hatter
Erethism - Wikipedia
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Mad hatter disease
Documentary Mercury Undercover - The "Mad Hatter" Story - YouTube
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Did the Mad Hatter have mercury poisoning?
The Mad Hatters of Danbury, Conn. - New England Historical Society
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Mad about Mad Hatter Disease - The Lazy Historian | Fascinating stories with sass from the past
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