Peanuts by Charles Schulz for December 14, 1970
December 13, 1970
December 15, 1970
Transcript:
Schroeder plays the piano. Lucy leans on the piano and reads a book. She says, "Beethoven was born on December 16, 1770."<BR><BR> Schroeder looks up and says, "That was a good year . . That was the same year that Gainsborough painted 'The Blue Boy.'"<BR><BR> Lucy says, "Maybe we'll have another year like that pretty soon."<BR><BR> Schroeder says, "I hope so . . . We're overdue."<BR><BR>
Wikipedia offers some context linking the painting Schroeder mentions and the year when this comic was published: "In September 1970 The Blue Boy was “outed” in the pages of Mad Magazine [etc]" (https://en.wikipedia.org/wiki/The_Blue_Boy)
Schroeder keeps dropping clues like this, but Lucy is still not getting it.