Great People and Inventions

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Across
  1. 4. Chinese thinker and social philosopher, The first private teacher
  2. 5. Paper
  3. 7. Father of political philosophy, morality, and good logic
  4. 10. Alternating current
  5. 11. Nicolas Appert
  6. 12. Toilet,Lamination
Down
  1. 1. Moonlight Sonata
  2. 2. Alexander Parkes
  3. 3. TNT
  4. 6. Pinhole Camera
  5. 8. Leonardo da Vinci's most famous creation
  6. 9. Abbas ibn Firnas