During World War 1, Harry Houdini took 1 year off performing to help sell war bonds and teach american soldiers how to escape from German handcuffs.
34
Until President Kennedy was killed, it wasn't a federal crime to assassinate the President.
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The site where the Parthenon was built had to be cleared of hundreds of dinosaur bones (then called giants' bones) before construction could begin.
13
In 1897, Bayer, who is the maker of Aspirin, marketed the drug heroin.
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In 1537, England's King Henry VII officially declared February 14th the holiday of St. Valentine's Day.
52
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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The U.S. motto, 'In God We Trust', was not adopted as the national slogan until 1956.
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