Quote Originally Posted by Ascension View Post
I was going to say something along the lines of what Gidde said - some great prophet had to move around for some reason and his followers continue the practice or simply because their god (via proxy of the clergy) tells them where to go and when. That could be pretty cool for a race of big, evil, and mean dudes rampaging around a continent in decade long cycles. Kind of weak for a pastoral culture who just follow herds or scrounge for food...that would make them a small culture whereas the aforementioned one could be dominating. The smallish culture would almost require some sort of ancient mysticism to make them interesting.
I'm not quite sure what you mean here. A quick look through the general history of the Eurasian continent should reveal that various pastoralists were some of the biggest, meanest raiders and conquerors ever.