[FrankTrollman]

What I think would be a good idea is to have a separate mod file for each of the three eras. You load up the era mod and it throws in all the mod nations for that era. Right now, the only way that a nation can get National spells is to plunder an existing nation - if the nations in question were always robbed from a different era you might not notice.

So the "Early Mod" would torch a bunch of late and mid-era nations and give out fully functional early positions. The "Late Mod" would plunder middle and early positions to get appropriate nations in the late period.

Since you select your mods and your era before you even see the nations, it wouldn't cause any hardship.

-Frank