- Greek mathematics developed from around the 7th century BC, producing many important theories thanks to great mathematicians such as Pythagoras, Euclid and Archimedes..
- Some playing cards in India are round.
- Stewardesses is the longest word that is typed with only the left hand.
- Antarctica is 98% ice and 2% barren rock.
- You shed a complete layer of skin every 4 weeks.
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