I just investigated Jahan on the web which led to a timeline (
https://divinity.fandom.com/wiki/Timeline) that had something interesting in the notes. Apparently OS2 was supposed to be before BD but was changed at game launch to four years after. This brings up a question about the Divine's "sacrifice". Is this alluding to the dragon knight "killing" him and so the founding of the order of dragon hunters and was missed when the time line changed or did he "die" again? Bear in mind I have yet to finish Chapter 2 (I'd prefer to avoid being spoiled if that were the case).
PS for Vometia: I don't know if this makes any difference on your map making but there was a comment in game from the guy hiding in a fish barrel that he was traveling from Arx to Cyrene (or whatever they are called - the city in the north that I haven't made it to and the island or peninsula from OS1) and rested in Driftwood on the way.
