Mad Hatters - What really made them Mad? | History Documentary - YouTube
Where did the phrase “mad as a hatter” come from?
Mad about Mad Hatter Disease - The Lazy Historian | Fascinating stories with sass from the past
Mad As a Hatter" | Origin and Meaning
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How Poisonous Chemicals Created The Phrase 'Mad Hatter' | Discover Magazine
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
The Mad Hatters of Danbury, Conn. - New England Historical Society
Why Was the Mad Hatter Mad? | HowStuffWorks
Horrible Health and Safety Histories: Erethism or Mad Hatter Syndrome | Amalgamate Safety Risk Management
V75: The True Origin of “Mad as a Hatter” – American Duchess Blog
National Mad Hatter Day (October 6th) | Days Of The Year
Erethism - Wikipedia
/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
Poisons Part I: The Mercurial World of Felt
How the Hatter Went Mad | Unframed
/cdn.vox-cdn.com/uploads/chorus_image/image/54261083/beaver_hat_crop.0.jpg "The science behind S-Town's mercury poisoning mystery - Vox")
The science behind S-Town's mercury poisoning mystery - Vox
