Medieval Islamic Civilizations

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Across
  1. 2. this system was changed from I, II, III to 1,2,3
  2. 5. capital city of the Islamic world
  3. 6. climate of the middle east
  4. 7. the house of wisdom had lots of these
  5. 8. buying and selling goods
  6. 9. Having lots of knowledge
  7. 11. name of the main trade route
Down
  1. 1. a place for travellers to rest
  2. 3. this group invaded and destroyed baghdad
  3. 4. a type of maths that originates in the Islamic world
  4. 10. religious building for Islam