Puzzling Enigma

12345678910111213141516
Across
  1. 3. Jingle Bells was written for this holiday
  2. 8. U.S Marine Corp motto (Latin)
  3. 11. Capital of Poland
  4. 14. Who designed Montecello?
  5. 15. Known as the Father of the American Revolution
  6. 16. Edict established in 324 A.D by the Emperor Constantine
Down
  1. 1. The most venomous animal on the planet
  2. 2. "It is well with..."
  3. 4. Colloquial term for myopia
  4. 5. Said "You shall not pass!" in the Lord of the Rings Trilogy
  5. 6. Number of stripes on the American flag
  6. 7. Oldest man to ever live
  7. 9. Prince William of England's late mother
  8. 10. Charles Lindbergh was the first to fly solo over this ocean
  9. 11. Said" As you wish" in the Princess Bride
  10. 12. St. Valentine was matryred during the persecution of Christians by this Emperor
  11. 13. Plane that defended Britan from invasion during WWII