General Knowledge · 2
The idiom "mad as a hatter" originated from occupational poisoning among workers in which trade?
Answer
Hat making
Hat makers used mercury compounds to treat felt for hats, and prolonged exposure caused tremors, slurred speech, and erratic behavior, giving rise to the phrase.
💡 Did you know?
"Mad as a hatter" came from hat makers who used mercury in felt production, causing neurological damage and erratic behavior in workers over time.
Other options people guess
- Leather tanning
- Glassblowing
- Textile dyeing
Topics
- idioms
- word-origins
- history
- language
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