Ancient civilizations

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Across
  1. 3. the first civilization to use paper money
  2. 7. the first civilization to use metals
  3. 8. first civilization in America
  4. 10. the first civilization to use geometry
Down
  1. 1. the advanced civilization in the world
  2. 2. first civilization in the world
  3. 4. the first civilization to use toothpaste
  4. 5. the first language used in ancient civilizations
  5. 6. the first civilization to use coins
  6. 9. the first civilization to use aqueducts