The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Jericho is the oldest walled city in the world at 9,000 yrs old!
55
In 1897, Bayer, who is the maker of Aspirin, marketed the drug heroin.
56
There's no evidence that pirates made people walk the plank.
151
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The great wall of China is 1,400 miles long!
44
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
The universally popular Hershey bar was used overseas during World War II as currency.
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