41a

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Across
  1. 2. Greek philosopher
  2. 4. Chinese philosopher
  3. 11. Medieval theologian
  4. 13. Wrote Canterbury Tales
  5. 15. French Revolution figure
  6. 17. Soviet dictator
  7. 18. Printing pioneer
  8. 20. Baroque composer
  9. 23. French Enlightenment writer
  10. 24. Code of laws
  11. 25. Greek philosopher
Down
  1. 1. Sailed in 1492
  2. 3. Renaissance genius
  3. 5. Russian empress
  4. 6. Author of 'The Old Man and the Sea'
  5. 7. Circumnavigator
  6. 8. German philosopher
  7. 9. Athenian leader
  8. 10. Parted the Red Sea
  9. 12. Ottoman sultan
  10. 14. English military leader
  11. 16. Greek poetess
  12. 19. Astronomer
  13. 21. Macedonian conqueror
  14. 22. Crossed the Alps