The first bomb dropped by the Allies on berlin in WW2 killed the only elephant in the Berlin Zoo.
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There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
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
India invented the Number System. Zero was invented by Aryabhatta.
59
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
Henry Ford was Charles Lindbergh's first passenger in the Spirit of St. Louis.
37
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118
The first telephone book was one page long and had only 50 names in it.
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