Crossword for 80th milestone

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Across
  1. 2. The iconic architectural marvel opened by Queen Elizabeth II in Sydney in October 1973
  2. 3. The post-WWII generation born between 1946 and 1964 across the Western world
  3. 5. Bob ____, the American folk music voice of a generation who sang "The Times They Are A-Changin'"
  4. 6. ____ Lee, the American author who won the Pulitzer Prize for her 1960 novel To Kill a Mockingbird
  5. 8. The world's first artificial satellite, launched by the USSR in 1957 to kick off the Space Race against the West
  6. 11. The British-born "Master of Suspense" who dominated mid-century Hollywood with films like Psycho
  7. 13. The 1970s US political scandal that led to the historic resignation of President Richard Nixon
  8. 14. American artist Andy Warhol's famous 1962 pop art subject: Campbell's ____ Cans
  9. 17. Ol' Blue Eyes himself, the iconic American crooner who famously sang "My Way"
  10. 20. Johnny ____, America's "Man in Black" who famously performed at Folsom Prison in 1968
  11. 21. Aussie rock legends formed in 1973 by the Young brothers, known for "Back in Black"
  12. 23. The trio of brothers who moved from Britain to Australia as kids before achieving massive global fame with the 1977 Saturday Night Fever soundtrack
  13. 25. Brazilian soccer icon who popularised the sport across America, Britain, and Australia in the 1970s
  14. 26. Ridley Scott's 1979 sci-fi horror film starring Sigourney Weaver that terrified global audiences
  15. 27. Robert ____, the iconic American poet who read "The Gift Outright" at JFK's 1961 inauguration
  16. 30. Sylvester Stallone's 1976 underdog boxing film that won Best Picture and became a global phenomenon
  17. 32. British band that took America and Australia by storm during their historic 1964 tours
  18. 34. ____ Story, the classic 1957 Broadway musical turned multi-Oscar-winning 1961 film adaptation
  19. 36. Spielberg's 1975 summer blockbuster that made cinema-goers everywhere afraid to go back in the water
  20. 37. Swedish pop group whose meteoric global rise in the 1970s was fiercely championed by passionate fans in Australia and Britain
  21. 38. The iconic California theme park that first opened its gates in July 1955
  22. 42. Aussie rock band that went "Down Under" to hit number one simultaneously on the US, UK, and Australian charts in 1982
  23. 43. Michael Jackson's landmark 1982 album that became the best-selling record of all time across the globe
  24. 44. Margaret ____, who became the UK's first female Prime Minister in 1979
  25. 45. The German city where a famous wall fell in November 1989, ending an era for Western allies
  26. 46. British author who wrote the chilling dystopian novel Nineteen Eighty-Four, published in 1949
  27. 47. The major US football gridiron championship game that first kicked off in January 1967
Down
  1. 1. Sir ____, the ultimate Australian cricket legend whose final, famous Test match batting average was
  2. 4. Where American astronauts famously walked in 1969, broadcast globally via Australia's Honeysuckle Creek tracking station
  3. 7. The milestone age celebrated by the guest of honour!
  4. 8. The Rolling ____, British rock icons who just "Can't Get No Satisfaction"
  5. 9. Gough ____, the Australian Prime Minister whose dramatic 1975 dismissal by the Governor-General shocked the nation
  6. 10. The legendary New Zealand-bred, Australian-raced monster horse who famously won the Melbourne Cup in 1930 and died under mysterious circumstances in America
  7. 12. Marlon ____, the legendary American actor who made an offer you couldn't refuse in The Godfather
  8. 13. The legendary 1969 music festival held on a dairy farm in upstate New York
  9. 15. The prestigious British tennis tournament won multiple times in the 60s and 70s by legends like Rod Laver and Billie Jean King
  10. 16. F. Scott Fitzgerald's "Great" American character, famously played on screen by Robert Redford and Aussie Leonardo DiCaprio
  11. 18. What a train does, or what Aussies might tell you to do with a cold beer on your birthday!
  12. 19. Iconic British rock band fronted by Freddie Mercury that stole the show at Live Aid in 1985
  13. 22. The beloved British princess who captivated the world and married Prince Charles in a massive 1981 royal wedding
  14. 24. Muhammad Ali’s birth name before he shook up the world in 1964
  15. 28. Star ____, the US sci-fi TV series that premiered in 1966 to boldly go where no man had gone before
  16. 29. 1978 musical film starring American John Travolta and Australia's own Olivia Newton-John
  17. 31. Classic American film starring Humphrey Bogart that won Best Picture a few years before the celebrant was born
  18. 33. The American King of Rock 'n' Roll who topped charts globally in 1956 with "Heartbreak Hotel"
  19. 35. The British-French supersonic turbojet airliner that cut transatlantic travel times in half starting in 1976
  20. 39. The initials of the charismatic 35th US President inaugurated in 1961
  21. 40. Marilyn ____, the iconic blonde bombshell of 1950s American cinema
  22. 41. The surname of Elvis, rock's ultimate pioneer
  23. 45. The iconic, sunglass-wearing frontman of the Irish rock band U2 who filled stadiums across the US, UK, and Australia