The first minicomics that accompanied the 1981-1983 line of Masters of the Universe toys presented the earliest version of continuity, and showed many differences from the more widely known continuity of the later cartoon made by Filmation, and the later minicomics which complemented it.
These very first mini-comics, which were actually more like storybooks, with a single image per page footed by prose, stated that Skeletor was originally an inhabitant of another dimension, populated with others of "his kind."