Mesopotamia Mania!

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Across
  1. 4. A slow calm river
  2. 5. A rough fast moving river
  3. 7. A group of laws
  4. 8. The giant temple like building
Down
  1. 1. The number of laws in Hammurabi's code
  2. 2. The name of the land around Mesopotamia
  3. 3. King of Babylon
  4. 6. Leader of the Akkadads