Ancient Romans at one time used human urine as an ingredient in their toothpaste.
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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.
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A baboon called Jackie became a private in the South African army in World War I.
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Recently, archaeologists excavating in the old medieval town of Odense in Denmark uncovered 700-year-old barrels of poop - and, to their surprise, they still smelt.
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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.
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The first coast-to-coast telephone line was established in 1914.
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In 1980, the city of Detroit presented Saddam Hussein with a key to the city.
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