50th Anniversary

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Across
  1. 5. Mary Richard's buffoonish colleague
  2. 9. singer Flack who spent six weeks at #1
  3. 10. tight-fitting item worn with bellbottoms
  4. 11. Visitor to Northern Ireland who sought to spread God's message of love
  5. 12. maker of highest selling car to date
  6. 14. hurricane responsible for deadly Pennsylvania floods
  7. 17. film which earned Jane Fonda an Oscar
  8. 19. "There's no place for the state in the bedrooms of the nation" quotee
  9. 20. Team Canada winning goal scorer
  10. 21. former name of newly declared Republic of Sri Lanka
  11. 22. TV wartime comedy
  12. 23. this sport changed the standard colour of the ball to make it more visible on television
Down
  1. 1. scandal uncovered by Washington Post reporters
  2. 2. Elvis hit, "___ Love"
  3. 3. chess player defeated by Bobby Fischer in World Championship
  4. 4. host of the XI Winter Games
  5. 6. industry which suffered from a forty-seven day strike
  6. 7. highest grossing film of the year
  7. 8. first wide-release video game
  8. 13. hilltop sanctuary for Fiver, Hazel et al
  9. 15. NASA satellite launched August 21
  10. 16. 33rd President who died on Boxing Day
  11. 18. "Hey Mikey, he likes it!" cereal