Across
- 5. Coat of arms symbols
- 6. Model T maker
- 9. Africa explorer
- 10. Temporary ruler
- 11. Bound labor system
- 14. South Pole winner
- 16. Missing pilot
- 17. Pacific explorer
- 19. First on the Moon
- 21. Upper class rulers
- 23. Solo Atlantic flyer
- 24. Medieval contest
- 25. First American to orbit
Down
- 1. Royal household
- 2. Seat of power
- 3. Telephone inventor
- 4. Brothers of flight
- 7. Second on the Moon
- 8. Oil tycoon
- 12. Radio pioneer
- 13. Antarctic explorer
- 15. Rural worker
- 18. Armored warrior
- 20. South Pole loser
- 22. Attack on city