50 years!

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Across
  1. 3. The largest northerly flowing river in No America
  2. 5. This govt agency was founded in 1973
  3. 7. Famous Candy from Canada
  4. 11. 1983 Movie starring Chevy Chase
  5. 12. Steinbrenner buys Yanks in 1973 from this broadcast group for $10mil
  6. 16. W. Mark Felt, or something maybe done on honeymoon night
  7. 18. Top grossing '73 flick, with The
  8. 21. Number of vice presidents to become president since Feb. 3, 1973
  9. 22. Percentage of marriages over fifty years in the USA
  10. 23. These baseball positions were first used in MLB in '73
  11. 25. Number of bedrooms at the Chalet Le Corzo
  12. 26. Birthplace of Canada's first commercial brewery in 1668
  13. 30. 2000 Movie starring Seann William Scott
Down
  1. 1. 1973 Super Bowl Champs home city
  2. 2. Provincial location of Park National de la Jacques-Carter
  3. 3. Stoves known as "Game Changers"
  4. 4. 50th anniversary= _____ Anniversary
  5. 6. Father in the top TV sitcom in 1973
  6. 8. These type of puzzle answers may be helpful for you
  7. 9. TV Show "Everybody Loves ___"
  8. 10. $1780 base cost of this vehicle in 1973
  9. 12. Tim Horton's beverage
  10. 13. System used worldwide by all but three countries
  11. 14. The Govt Publishing Comp has been making these since the 1920s
  12. 15. First phone call of this type was made in 1973
  13. 17. "___ is bursting out all over"
  14. 19. 17.4 million gallons produced in Canada in 2022
  15. 20. Mother in the '73 hit show The Waltons
  16. 24. 1973 DJ Kool Herc, credited as the first artist in this music genre
  17. 27. Country credited with inventing Hawaiian Pizza
  18. 28. Of Ryan's 7 no hitters, this one came in 1973
  19. 29. MLB WS champion city in 1973