Alexandria and Egypt

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Across
  1. 2. what area of expertise did the female scholar Hypatia have?
  2. 4. which famous building of Alexandria was one of the seven wonders of the ancient world?
  3. 6. Who founded Alexandria?
  4. 8. what was kept in the library of Alexandria?
Down
  1. 1. what might the library of Alexandria have been destroyed by?
  2. 3. Where did traders secure silk from?
  3. 5. what did Alexandria had which allowed it to trade?
  4. 7. What was the name of the river in Egypt?