June 11, 1973 (Start of a storyline which was later adapted as the segment "Sack" in the 1983 TV special It's an Adventure, Charlie Brown) (Later appeared on the sides of the box containing a bobblehead of Charlie Brown in a Detroit Tigers uniform that was given out for free at the June 20, 2010 Arizona Diamondbacks-Detroit Tigers game in Detroit as part of the Peanuts 60th anniversary celebration. Schulz once admitted that this was his favorite story of the whole Peanuts series)
June 12, 1973
June 13, 1973
June 14, 1973
June 15, 1973
June 16, 1973
June 17, 1973
June 18, 1973
June 19, 1973
June 20, 1973
June 21, 1973
June 22, 1973
June 23, 1973 (Charlie Brown (with a paper sack over his head) is elected Camp President.)