Approximately 40% of the U.S. paper currency in circulation was counterfeit by the end of the Civil War.
47
The Titanic was the first ship to use the SOS signal.
149
In the 1930's, American track star Jesse Owens used to race against horses and dogs to earn a living.
50
The site where the Parthenon was built had to be cleared of hundreds of dinosaur bones (then called giants' bones) before construction could begin.
13
Vikings used the skulls of their enemies as drinking vessels.
169
Traces of cocaine were found on 99% of UK bank notes in a survey in London in 2000.
142
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
