- Babylonians measured the circumference of a circle as approximately 3 times the diameter, which is fairly close to today's measurement which uses the value of Pi (around 3.14)..
- The revolving door was invented in 1888.
- Fingernails grow faster than toenails.
- Japanese people don't have middle names.
- It takes 110 silkworm cocoons to make an average tie.
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