In 1518, a "dancing plague" struck Strasbourg, Alsace, whereby hundreds of people danced fervently in the streets over the period of a month. Some suffered heart attacks or strokes, and many others died from sheer exhaustion. It remains unexplained.
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Two dogs were among the Titanic survivors.
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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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The universally popular Hershey bar was used overseas during World War II as currency.
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English sailors were referred to as "limeys" because sailors added lime juice to their diet to combat scurvy.
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Clocks made before 1660 had only one hand - an hour hand.
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In 1918, after the treaty of Versailles (end of WWI), the French Commander-in-chief said "This is not a peace. It is an Armistice for 20 years." 20 years and 65 days later, WWII happened.
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