Across
- 1. other medical discovery of Egypt
- 3. traditional medicine practice by the chinese
- 4. they implemented the mandatory education
- 6. the founder of psychoanalysis
- 8. Charles Darwin's famous work
- 11. known for traditional medicines
- 13. famous for the theory of evolution
- 15. medical discovery of Egypt
- 17. they have three types of calendar
- 21. agricultural tool invented by chinese
- 23. use to measure length to a high degree of accuracy
- 24. Muhammad ibn Musa al-Khwarizmi's mathematic concept
- 26. they are known for manufacturing iron
- 27. Aztec's tribute to their gods
- 29. the most important invention of chinese
- 30. term that algebra derived from
Down
- 2. medication that the aztec use to prevent spasms
- 5. light narrow boat used for travelling
- 7. knowledge that traced to indus valley
- 9. Aztec's agricultural technology that they use in farming
- 10. Author of De revolutionibus orbium coelestium
- 12. the empire that has paved stone roads
- 14. the lunar calendar of african tribe
- 16. by-product of cacao that aztecs use
- 18. result from the experiment of taoist monks that wanted to create a elixir of life
- 19. a knotted rope that keep records
- 20. used in planning their activities, rituals and planting season
- 22. they built hydraulics systems with sophisticated waterways to supply water
- 25. Mineral that mayans used in weaving cloth
- 28. one of the reasons India's known for