Across
- 1. C
- 4. USA celebrated this in 1976
- 6. LXIV
- 8. literal translation: seventh month
- 10. English meaning of proton
- 11. Latin cardinal number for one
- 13. one thousand meters
- 18. belief in one god
- 19. solid with four sides
- 20. If you are a quintuplet you have ___ siblings your age
Down
- 2. Greek cardinal number for nine
- 3. they derived the arithmetic representation of zero
- 5. a thousand years
- 7. X
- 9. one-sixty-fourth note
- 12. XIX
- 14. cephalopod with eight legs
- 15. English meaning: both
- 16. red, blue, and yellow are ___ colors
- 17. Latin cardinal number for two