The biggest difference in this period in the spreading of this two groups was that the Jews were forcefully spread out from their homeland to mainly the European countries even though they didn't wanted that, while the Christians systematically forced their way into the European continent even though it was under fire for few hundred years and forbidden for practice.
I expected it to end with none of the humans turning out to be ailen after all. I thought that maybe there was aliens, but they were messing with the people of the town to make them push the blame on eachother.