In 1657, the first chocolate house was opened in London, England. The cost of chocolate was about 13 shillings per pound and was a drink that only the elite enjoyed.

Over one million Pet Rocks were sold in 1975, makine Gary Dahl, of Los Gatos, California, a millionaire. He got the idea while joking with friends about his pet that was easy to take care of, which was a rock.

A standard slinky measures 87 feet when stretched out.

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