On
Christmas Day 1944 the first gag was published in the Flemish magazine
Ons Volk Ontwaakt, but for about a year Piet Fluwijn was the only character. On December 27, 1945, the comic strip was moved to the weekly youth supplement of the magazine
Ons Volkske. Sleen then introduced Fluwijn's son, Bolleke, who was still called "Bommeke" in those days. From April 3, 1947, on the series was also published in ''
't Kapoentje, the weekly youth supplement of the newspaper Het Volk, where the character was named "Bolletje"
. They were also translated into French and published in Le Petit Luron
, the weekly youth supplement of the magazine Samedi
, under the name Miche et Celestin Radis''. In 1965 Sleen decided to terminate all his other comic strips in favor of
The Adventures of Nero. "Piet Fluwijn en Bolleke" too was cancelled on April 14, 1965. Cartoonists Hurey and Jean-Pol drew a new version of the series for the comics magazine
Pats, but in 1974 the series came to a permanent halt. ==Albums==