The Mad Hatter
Many will remember the Mad Hatter from Lewis Carroll’s Alice in Wonderland. The Mad Hatter was based on a real character, or rather many real characters. There is debate over whether Lewis Carroll’s Mad Hatter suffered from mercury poisoning; he was portrayed as an eccentric extrovert who was obsessed with time - not typical features of mercury poisoning. Nevertheless, hatters of the 19th century most certainly were regularly poisoned by this harmful metal. Unsurprisingly, hatters made hats, and during the 19th century felt hats were especially popular.
These symptoms became known as ‘Mad Hatter Syndrome’ which was, in effect, one of the early industrial occupational diseases - mercury poisoning.