- The word 'geometry' comes from the Greek words 'geo', meaning earth, and 'metria', meaning measure..
- Spiders have transparent blood.
- Nintendo first produced playing cards.
- 12 + 3 - 4 + 5 + 67 + 8 + 9 = 100.
- The world's first paved streets were laid in Rome in 170 B.C..
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