- Greek philosopher and mathematician Pythagoras lived around the year 500 BC and is known for his Pythagorean theorem relating to the three sides of a right angle triangle: a^2 + b^2 = c^2.
- The first ground vacuum packed coffee was first introduced in 1900.
- Some playing cards in India are round.
- Flamingoes can live up to 80 years old.
- A group of geese is called a gaggle.
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