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Across
  1. 3. - East African trading empire in Ethiopia
  2. 4. - Indian empire under Ashoka
  3. 6. - Final Persian empire before Islamic conquest
  4. 7. - Longest ruling Chinese dynasty
Down
  1. 1. - Classical Indian golden age dynasty
  2. 2. - Early Chinese bronze-working dynasty
  3. 5. - Civilization south of ancient Egypt