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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Nazi leader Adolf Hitler had only one testicle.
117
The Titanic is about as long as the Empire State building is tall.
174
Kung Fu actually originated in India, but was developed further in China.
90
Clocks made before 1660 had only one hand - an hour hand.
41
There's no evidence that pirates made people walk the plank.
151
In 1958, a nuclear bomb was lost somewhere along the swampy coast of Georgia. Its whereabouts remain a mystery to this day.
29