Not mentioning it would be very time consiming; for example, let's take a 867 scenario. We have little tidbits of the history and some general guidelines, but there are a lot of blanks and with the Eastern Expansion to come, there will be even more. One of the ideas I have when we have stabilized the mod enough is maybe adding a "fantasia" scenario where all the de jure empires (and some of the titular ones where there aren't de jure) are formed, but yeah... not soon. Our main focus right now is debugging and I don't see that changing for a while.