In speculative fiction, we use the phrase "worldbuilding" (sometimes with a space, sometimes not) to talk about the process of creating the rules about the imagined worlds in which our stories take place. Tolkien is held up as the gold standard, what with the fact that he created complicated and diverse languages, then used his story of The Lord of the Rings as an excuse to showcase the people and world that spoke that language. He points out in his "Foreword to the Second Edition" that he doubted anyone would want to read it: I desired to [write these novels] for my own satisfaction, and I had little hope that other people would be interested in this work, especially since it was primarily linguistic in inspiration and was begun in order to provide the necessary background of 'history' for Elvish tongues. (xxii) Maps, languages, histories, and other sundry notes were compiled posthumously in The Simarillion and other books, all under the direction of ...
Personal musings of Steven Dowdle