Ancient China crossword puzzel

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Across
  1. 3. First dynasty to leave written records
  2. 5. First emperor of China.
  3. 6. a mixture of sulfur, charcoal, and saltpeter discovered by 9th-century alchemists, changed military technology,
  4. 10. Medical treatment using needles.
  5. 14. Ancient, soft, and shiny fabric
  6. 15. Animal bones used for fortune-telling and writing.
  7. 17. A long wall that protected China from invaders.
  8. 18. Hydraulic-powered escapement mechanisms for astronomical clocks
  9. 20. Longest-lasting dynasty
  10. 21. Invented by Zhang Heng in 132 AD to detect distant earthquakes
  11. 23. Known for establishing civil service and the Silk Road
  12. 27. Developed with curved moldboards for better soil cultivation
  13. 28. Teacher whose philosophy shaped Chinese society.
Down
  1. 1. revolutionized navigation.
  2. 2. The divine right to rule.
  3. 4. Longest river in Asia
  4. 7. Developed around 100 BC to improve agricultural transportation.
  5. 8. Founder of Daoism.
  6. 9. nickname is China's Sorrow.
  7. 11. Valued precious stone
  8. 12. Philosophy emphasizing social hierarchy, respect, and duty
  9. 13. Unified China; known for Legalism.
  10. 16. One of the four great inventions
  11. 19. A philosophy emphasizing strict laws and state power.
  12. 22. Bi Sheng invented movable type, using clay blocks.
  13. 24. Philosophy focuses on living in harmony with the Dao (the way).
  14. 25. A type of durable pottery with excellent painting
  15. 26. Chinese currency