The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Tablecloths were originally meant to serve as towels with which guests could wipe their hands and faces after dinner.
78
Until President Kennedy was killed, it wasn't a federal crime to assassinate the President.
341
Grenades were invented in China over 1,000 years ago.
50
The Mint once considered producing doughnut-shaped coins!
60
Approximately 40% of the U.S. paper currency in circulation was counterfeit by the end of the Civil War.
47
The Titanic is about as long as the Empire State building is tall.
174

