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.
16
There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
Vikings used the skulls of their enemies as drinking vessels.
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The average life span of a peasant during the medieval ages was 25 years.
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There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
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Leonardo Da Vinci made a robotic lion in 1515 that would walk, sway, open its mouth and move its tail - it even had a compartment that opened to present flowers.
22
During World War II, Uncle Ben's was the exclusive supplier of rice to the U.S. Armed Forces.
23
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.
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