Mesopotamia Crossword Puzzle

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Across
  1. 4. A high flat area of land
  2. 5. A place with a high population
  3. 6. The tool used for writing
  4. 8. The ancient written language
Down
  1. 1. The largest building
  2. 2. An extra supply of something
  3. 3. An organized system that makes laws
  4. 7. A person who writes things for others