- People who work at night tend to weigh more.
- Flushable toilets were in use in ancient Rome.
- You can buy square watermelons in Japan (developed to stack better in supermarkets).
- Giraffes can't cough.
- Greek mathematics developed from around the 7th century BC, producing many important theories thanks to great mathematicians such as Pythagoras, Euclid and Archimedes..
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