What do you know about the USA?

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Across
  1. 5. the capital city of the state of New York
  2. 6. a very famous annual sport meeting
  3. 8. the capital city of the USA
  4. 10. the name of one state that is not on the continent
  5. 12. a synonym for neighbourhood or district
  6. 13. the reason why the Europeans emigrated to the USA in the 17th century
  7. 16. the smallest state
  8. 18. the place where the President lives
  9. 19. the number of states in the USA
  10. 20. the business district of New York
  11. 21. July,4th, 1776
Down
  1. 1. the name of the US flag
  2. 2. Puritans who emigrated to the US in the 18th century
  3. 3. July, 1969
  4. 4. the first president of the US
  5. 7. the word for taxi in New York
  6. 9. the name of one district of New York
  7. 11. the biggest state
  8. 14. the number of British colonies before independence
  9. 15. the name given to the high buildings
  10. 17. He abolished slavery in 1863
  11. 19. the number of quarters in New York