- Greek mathematics developed from around the 7th century BC, producing many important theories thanks to great mathematicians such as Pythagoras, Euclid and Archimedes..
- The word 'taxi' is spelled the same in English, German, French, Swedish, and Portuguese.
- Gorillas can't swim.
- Each time you see a full moon you always see the same side.
- That you can spell the word 'level' the same backwards.
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