Cleopatra married two of her brothers.
47
Henry Ford was Charles Lindbergh's first passenger in the Spirit of St. Louis.
37
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.
19
During World War 1, Harry Houdini took 1 year off performing to help sell war bonds and teach american soldiers how to escape from German handcuffs.
34
There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
23
Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153