Sumerians

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Across
  1. 4. Called only when there was danger
  2. 6. Each city-states had its own
  3. 7. Migrated from Asia to Mesopotamia
  4. 8. Invented this form of Monarchy
Down
  1. 1. Sumerians invented what we use every day
  2. 2. The first to use this found on vehicles
  3. 3. They invented this farming method
  4. 4. There were twelve
  5. 5. A place to study