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Key Facts In This Video
In the 19th century, many people wore garments or shoes colored with aniline dyes, which often poisoned their blood. 01:59
The phrase "mad as a hatter" refers to industrial hat-makers in the mid 1800s, who were poisoned by mercury while producing their hats. 04:44
During the heyday of celluloid accessories, combs and other items would suddenly catch fire when placed near a heat source. 08:19
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