Cleopatra married two of her brothers.
47
The range of a medieval long-bow is 220 yards.
78
There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
23
The World Trade Center towers used to have two zip codes, 10047-10048, one for each building.
77
In 1897, Bayer, who is the maker of Aspirin, marketed the drug heroin.
56
Tickling was a form of torture used in ancient China on nobility because it left no mark and recovery was quick.
33
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13