It should be noted that before the smurfs became an animated cartoon they had their own comic, drawn by belgian illustrator Peyo. They made their first appearance in Johan and Peewit adventure in 1958.

Another interesting fact is that smurfs are described as "three apples high" while simultaneously living in mushrooms. Thus we can deduce that in Belgium, either the apples are very small, or the forests are fraught with humongous mushrooms.