January 18, 1954 (According to this strip, January 18 is Schroeder's birthday. Although Beethoven's birthday would continue to be referenced throughout much of the strip's run, Schroeder's birthday would never be referred to again)
January 19, 1954
January 20, 1954
January 21, 1954
January 22, 1954
January 23, 1954
January 24, 1954
January 25, 1954
January 26, 1954
January 27, 1954
January 28, 1954
January 29, 1954
January 30, 1954
January 31, 1954 (Snoopy's doghouse is first revealed to be bigger on the inside than on the outside)
