Queen Elizabeth II served as a mechanic and driver in World War 2.
36
The Grateful Dead were once called 'The Warlocks'.
34
The universally popular Hershey bar was used overseas during World War II as currency.
112
No one knows who designed the first American Flag.
45
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Clocks made before 1660 had only one hand - an hour hand.
41
