Each king in a deck of playing cards represents a great king from history: spades - King David, clubs - Alexander the Great, hearts - Charlemagne, and diamonds - Julius Caesar.
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In 1963, the US Military created an artificial ring around Earth, similar to that of the planet Saturn. The ring was made of copper needles and was used for worldwide communications in the case that the Soviets disabled all other methods of communication.
26
In 1897, Bayer, who is the maker of Aspirin, marketed the drug heroin.
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Approximately 25,000 workers died during the building of the Panama Canal, and approximately 20,000 of them contracted malaria and yellow fever.
14
To take an oath, ancient Romans put a hand on their testicles
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Scientists are excavating the ruins of a major civilization which pre-dates both the pyramids and Stonehenge by over 7,000 years. In 15 years, they have uncovered only about 5% of the site.
21
The exact cause of death and burial site of Genghis Khan is unknown, because all of the 2000 funeral guests and 800 soldiers were killed in order to preserve the secret.
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