"Some of this I've already been over with your father - it was created by an entity called Eru, who at the time was omnipotent and omniscient. He made the Valar and their lesser cousins the Maiar, assigned them tasks, and proceeded to do very little while they did astroengineering and terraforming projects over millions of years. One of the Valar, Melkor, is evil, and noticed before the rest that there were Quendi that Eru had placed on Endorë, the planet where I was born. He did assorted evil things, the details of which I do not know to be of interest apart from that there thus resulted the orc species. Another Vala, Oromë, visited Endorë for approximately recreational purposes and encountered Elves, some of whom agreed to visit Valinor, the planet where I live now. They confirmed for the rest of us that it was nice and some of us moved there, while others stayed behind; the Valar fought Melkor and tried and imprisoned him and everyone else got on with our lives. The Vala Aulë invented and implemented the Dwarf species, on Endorë, and Eru agreed to wake them up. It eventually became clear that Eru was not as he'd presented himself an omnibenevolent deity with very good reasons for having permitted Melkor and made various other peculiar decisions but was instead using all the people in the universe as toys to act out dramas of his omniscient devising with more verisimilitude than fiction. We were annoyed. He agreed to carve out bits of his powerset and stop steering in that way and everything's been pretty lovely since. I'm eliding a lot of detail, I'm not sure exactly what will be most immediately relevant."