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Interesting Fact |
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In the 18th and 19th century, hatmakers used poisionous chemicals including mercury in their work. As result, many developed pathological symptons -- an estimated 10% went insane. Hence the term "mad as a hatter" and Lewis Carroll's character, the Mad Hatter. |
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Did you know... |
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The Notes tool allows you to create and save private notes for yourself and bookmark pages throughout the site. |
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