The Ancient Sumerian Times Crossword

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Across
  1. 1. Citizens of southern Mesopotamia
  2. 5. Earth wall that prevents flooding
  3. 6. Evolution of the village
  4. 8. Action of selling and buying items
  5. 9. Man-made waterway
Down
  1. 2. Region of West Asia
  2. 3. Very fine mud
  3. 4. Another name for 'New Stone Age'
  4. 7. Upright slab of stone with writing about history