I was thinking that the big black Russian steppe (what was it called 2000 years ago?) would constantly add barbarian power to provinces in what's now Poland.
Right now, it's a little to easy to colonize right up into Poland, and the nations on the north shore of the Black Sea have no credible threat from barbarians.
But, if provinces near the terra incognito had the potential for +100 barbarian power events, then it would slow down colonization greatly.
Right now, it's a little to easy to colonize right up into Poland, and the nations on the north shore of the Black Sea have no credible threat from barbarians.
But, if provinces near the terra incognito had the potential for +100 barbarian power events, then it would slow down colonization greatly.