Crossword

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Across
  1. 4. Name of the river that was crucial to the development of Ancient Egypt.
  2. 6. A center for learning and translation
  3. 8. Series of religious wars to control the Holy Land.
Down
  1. 1. Land under the dominion of a king or queen
  2. 2. Islamic state led by a caliph
  3. 3. Meaning of the word "Islam"
  4. 5. Member of the lowest social class in medieval society
  5. 7. Islamic scripture revealed to Muhammad