There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
Grenades were invented in China over 1,000 years ago.
50
A singing birthday card has more computing power than the allied forces in 1945.
30
In 1897, Bayer, who is the maker of Aspirin, marketed the drug heroin.
56
Napoleon Bonaparte thought torture should be abolished because the information obtained from it is worthless.
25
The World Trade Center towers used to have two zip codes, 10047-10048, one for each building.
77
In ancient Greece, tossing an apple to a girl was a traditional proposal of marriage. Catching it meant that she accepted.
29
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