Lesson 3 crossword puzzle

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Across
  1. 3. Movement in social class
  2. 5. mathematician
  3. 6. studied by Muslims
  4. 7. researcher
  5. 8. physician
  6. 10. books of kings
  7. 12. design of buildings
  8. 16. scientist
  9. 18. improved Muslim calander
  10. 19. household servants
Down
  1. 1. first bank checks
  2. 2. writer about history
  3. 4. Muslim poet
  4. 9. moving people
  5. 11. Muslim worshiping place
  6. 13. handwriting
  7. 14. traveling traders
  8. 15. muslim holy book
  9. 16. canon on medicine
  10. 17. early Muslim art