What do you know about the USA?

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Across
  1. 3. the capital city of the USA
  2. 6. the name given to the high buildings
  3. 8. there are 50 of them on the US flag
  4. 9. the biggest state
  5. 13. a synonym for neighbourhood or district
  6. 14. the number of states in the USA
  7. 17. the first president of the US
  8. 19. the reason why the Europeans emigrated to the USA in the 17th century
  9. 21. there are 13 of them on the US flag
  10. 22. July, 1969
  11. 23. July,4th, 1776
  12. 24. the name of the US flag
Down
  1. 1. they were British before independence
  2. 2. Puritans who emigrated to the US in the 18th century
  3. 4. the capital city of the state of New York
  4. 5. the number of British colonies before independence
  5. 7. the name of one state that is not on the continent
  6. 10. the business district of New York
  7. 11. the word for taxi in New York
  8. 12. a very famous annual sport meeting
  9. 14. the number of quarters in New York
  10. 15. He abolished slavery in 1863
  11. 16. the smallest state
  12. 18. the name of one district of New York
  13. 20. the place where the President lives