Crossword History 67

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Across
  1. 2. Used to be Mesopotamia
  2. 6. First Emperor of China
  3. 8. Invented Gunpowder
  4. 10. Founded Persian Empire
Down
  1. 1. Trade Route between Central Asia and China
  2. 3. The Population Tripled
  3. 4. Originated 2,500 years ago in India
  4. 5. Conquered Shang
  5. 7. Symbol of Harmony
  6. 9. Cause of the Universe