| September 23rd 1969 | | "Clues Hint at Beatle's Death," reported in Illinois Univ newspaper, sparking widespread rumours of Paul McCartney's death
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| September 23rd 1969 | | Northern Star starts rumor that Paul McCartney is dead
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| September 23rd 1969 | | 1st broadcast of "Marcus Welby MD" on ABC-TV
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| September 23rd 1970 | | Abdul Razak bin Hussain becomes premier of Malaysia
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| September 23rd 1970 | | Gary Muhrcke wins 1st NY Marathon
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| September 23rd 1971 | | John Vermeers painting "The liefdesbrief" stolen
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| September 23rd 1972 | | President Marcos ends emergency crisis in Philippines
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| September 23rd 1972 | | Philippines President Ferdinand Marcos declares martial law
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| September 23rd 1973 | | Former Argentine President Juan Peron returns to power
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| September 23rd 1973 | | Kathy Whitworth wins LPGA Portland Ladies Golf Open
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| September 23rd 1973 | | Largest known prime, 2 ^ 132,049-1, is discovered
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| September 23rd 1974 | | BBC Ceefax begins 1st teletext service
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| September 23rd 1974 | | "Gypsy" opens at Winter Garden Theater NYC for 120 performances
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| September 23rd 1976 | | Ford-Carter TV debate
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| September 23rd 1976 | | South Africa decides to allow multi-racial teams to represent them
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