expanding interactions

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Across
  1. 7. a sovereign ruler of great power and rank
  2. 8. a small graphic symbol
  3. 9. a country is wast africa
  4. 10. an ancient inca device
  5. 13. the days between successive spring or autumn
  6. 15. a ruling class of educated or sklled people
  7. 16. emperor shizu of yang
  8. 17. the highest class in certain societies
  9. 19. a system of government
  10. 20. was a chinese phlosopher and politician of the spring and autumn period
Down
  1. 1. trade onn the sahara desert
  2. 2. a military commander
  3. 3. relating to a empire
  4. 4. a hole or drill in your skull
  5. 5. recuitment and admission to the civil service
  6. 6. the first emperor of the mongol empire
  7. 11. a muslim berber scholar and explore
  8. 12. the tenth mansa of the mali
  9. 14. a venetian merchant believed to go across asia
  10. 18. people from the same family that play a big role