Grenades were invented in China over 1,000 years ago.
50
Queen Elizabeth II served as a mechanic and driver in World War 2.
36
Recently, archaeologists excavating in the old medieval town of Odense in Denmark uncovered 700-year-old barrels of poop - and, to their surprise, they still smelt.
11
Pineapples were such a status symbol in 18th century England that you could rent one for the evening to take to a party.
25
A singing birthday card has more computing power than the allied forces in 1945.
30
A monk had once written over a book that contained information about calculus that was written by Archimedes in ancient Greece that could have made us 100 or even 1000 years more mathematically and technologically advanced.
13
The World Trade Center towers used to have two zip codes, 10047-10048, one for each building.
77