The Aztecs were the first to serve chocolate as a drink. They also mixed it with hot chili pepper to make it really 'hot'.
13
In 1700s, the deer skin was a common medium of exchange between the trading settlers and the native Red Indians in America. This is how a buck became a slang for a dollar.
28
The ‘@’ sign is centuries old, and was used in Europe to denote a unit of weight (the “arroba”) equivalent to 25 lbs.
11
Al Capone's armored limousine, after being seized by the feds, was later used to protect Franklin Delano Roosevelt (FDR), 32nd President of the US, after the attack on Pearl Harbor.
20
'⸮' is a punctuation mark that was first proposed in the 1580s to denote sarcasm or irony.
17
Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
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