I am working on a fantasy trilogy and while I have most of my three books laid out and some already written of the first book, I had a friend of mine read over what I have so far and she had some questions that I never even thought of while writing. First, some facts. There is no advanced technology like electricity, cars or anything of the like. The setting obviously places it in a medieval era. There is magical spells of all kinds taking place. There are many references made to the sun. Many spells involve the "earth". Humans do exist. A vampire-like race also exists. Given those few facts, my friend asked me if this takes place on Earth and what timeline is it in. Honestly, I thought the answer to those questions...moot. Simply because it is taking place in an entirely made up plane of existence so the name of the planet is hardly relevant and the timeline was, though not specific, generally self-explanatory. Am I wrong to assume that leaving those details out is hardly a vital aspect of the story?