Krazy Kat gets its start as a literally "low" plot at the bottom of another strip.
George Herriman, The Dingbat Family,
cartoon, 26 July 1910; rpt. in Patrick McDonnell, Karen
O'Connell, Georgia riley de Havenon, Krazy Kat: The Comic Art
of George Herriman (New York: Harry N. Abrams, 1986), 55.