Hey Guys a good friend showed me that map and I found it VERY Interesting since you can see what areas which "church group" occupied.
As youll notice the map is in german language however "lightblue" is for our Church and the violett dots are monstaries of the Church of the East.
Now you also have on it "Zorastraims" (Kurds claim that to be their main religion before Islam..nice now we also know the areas )....take a good look its very interesting and informative.