December 1, 1973
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December 2, 1973
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December 3, 1973
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December 4, 1973
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December 5, 1973
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December 6, 1973
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December 7, 1973
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December 8, 1973
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December 9, 1973 (The fourth reference to Citizen Kane in Peanuts. This strip is referenced in the one from October 8, 1995)
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December 10, 1973
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December 11, 1973 (The gag of Lucy being hit with a typewriter is used in The Peanuts Movie)
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December 12, 1973
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December 13, 1973
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December 14, 1973
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December 15, 1973
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December 16, 1973 (Beethoven's birthday) (This strip is adapted in Race for Your Life, Charlie Brown)
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December 17, 1973
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December 18, 1973
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December 19, 1973
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December 20, 1973 (Beginning of a storyline that was later adapted as the segment "The Play" of The Charlie Brown and Snoopy Show episode "Sally's Sweet Babboo")
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December 21, 1973
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December 22, 1973
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December 23, 1973
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December 24, 1973
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December 25, 1973
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December 26, 1973
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December 27, 1973
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December 28, 1973
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December 29, 1973
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December 30, 1973
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December 31, 1973
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← November 1973 January 1974 →
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