17

12345678910111213141516171819202122232425
Across
  1. 4. Religious upheaval
  2. 6. US-Soviet tension
  3. 9. Great War
  4. 10. Alcohol ban
  5. 11. Surprise attack
  6. 14. Empire collapse
  7. 15. Global conflict
  8. 18. Bubonic plague
  9. 20. Civil War battle
  10. 21. 60s movement
  11. 23. Atomic project
  12. 25. WWI ceasefire
Down
  1. 1. Divided city
  2. 2. 1789 uprising
  3. 3. Middle East conflict
  4. 5. Manufacturing boom
  5. 7. London disaster
  6. 8. First moon walk
  7. 12. Atomic bomb city
  8. 13. Cultural rebirth
  9. 16. 1215 charter
  10. 17. Colonial protest
  11. 19. Normandy invasion
  12. 22. Political scandal
  13. 24. Shipwreck