US History (Puzzle #1)

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Across
  1. 2. Name of father and son who were both Presidents
  2. 4. Second President
  3. 6. He began WW1
  4. 7. First American in space
  5. 8. Shot Lincoln
  6. 11. Leader of Japan during WW2
  7. 13. First man on the moon
  8. 16. Bombed Pearl Harbor
Down
  1. 1. JFK fought in this war
  2. 3. America's ally in World War 2
  3. 5. First city attacked by an atomic bom
  4. 9. Replaced FRD
  5. 10. Second city attacked by an atomic bom
  6. 12. President for 4 terms
  7. 14. Shot JFK
  8. 15. First man in space