So, we're culminating a partial run-through of a PF2E-adapted version of War for the Crown which will end at level ten (my party just can't commit to any more rounds of the social play loop and sandbox-style adventure the AP requires). One of the most popular choices among my group for a follow-up adventure is an idea I've had to play a Taldane squadron involved in the Shining Crusade, close to a millennium prior to the events of our current AP.
After having suggested this, I realize that (as per usual for me) I've set myself a much steeper task than I thought. Because executing this concept requires reconstructing the world of the Shining Crusade in the early 39th century AR. I'm hoping to benefit from the knowledge of people who are more conversant with central Avistan and its history than I am.
I'm planning to start our adventure with Tar-Baphon's attack on Oppara as described in Last Watch, the third book of the Tyrant's Grasp AP. (The timeline is confused here but I'm choosing to place this attack just before Arazni, canonically, is summoned to lead the Knights of Ozem about a year later.) So our adventure commences in 3817 AR with the battle between General Mediah Lionsleap and the wyrmwraith Xalxaros.
There's a lot of stuff I don't know about this era, though, that others might have insight about. Especially:
1. The territory on the western shore of Lake Encarthan that will later play host to the nations of Lastwall (or the Gravelands), Nirmathas and Molthune are likely a single Taldan province or realm at this point. What is it called?
2. What's going on in Numeria and the River Kingdoms at this point? I know we're a couple of centuries after the Machine Mage Karamoss and the Arch-Duchy of Melcat is probably around. I know precious little of what else is happening outside of the arch-lich's realm in Ustalav.
3. I know Druma is an independent nation at this point, for quite some time now. The Elves have returned to Kyonin, the Five Kings Mountains are... something close to what they'll become in the Age of Lost Omens. I know precious little of what's happening in what will eventually be known as Brevoy.
Does anyone know anything about this period that could help me?