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Across
  1. 5. Slavery court case
  2. 6. U.S. Naval hero
  3. 7. Destiny ideology
  4. 10. Women's voting rights
  5. 11. 1867 land purchase
  6. 12. Red Scare senator
  7. 16. Roaring Twenties novel
  8. 18. 1862 land act
  9. 20. Teddy Bear namesake
  10. 21. Of Tears
  11. 23. 1960s conflict
  12. 24. First in flight
  13. 25. Great Depression programs
Down
  1. 1. U.S.-Soviet standoff
  2. 2. Lincoln's famous address
  3. 3. First solo transatlantic flight
  4. 4. Sumter Civil War start
  5. 8. Post-Civil War era
  6. 9. 1848 women's rights convention
  7. 13. Pilgrims' ship
  8. 14. Harbor attack
  9. 15. First permanent colony
  10. 17. First moon landing
  11. 19. Canal completion
  12. 22. 1930s ecological disaster