The great wall of China is 1,400 miles long!
44
Grenades were invented in China over 1,000 years ago.
50
Tablecloths were originally meant to serve as towels with which guests could wipe their hands and faces after dinner.
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Genghis Khan exempted the poor and clergy from taxes, encouraged literacy, and established free religion, leading many peoples to join his empire before they were even conquered.
28
Leonardo Da Vinci made a robotic lion in 1515 that would walk, sway, open its mouth and move its tail - it even had a compartment that opened to present flowers.
22
Originally, Du Pont, Inc. was a tiny gun powder mill in New Jersey.
20
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
To take an oath, ancient Romans put a hand on their testicles
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