I think the Medieval and the Industrial power are too powerful. The Iroquois Indians never realy built any churches in their history. They had Missions in many of their cities, but I would not count that as a Catheradal. The Iroquois had a unique and strong culture, but with your powers they are deffenetly a cultural powerhouse which one would not think about Iroquois. The Iroquois were warlike I think. And also +2 defence to all units would make them literly impossibal to defeat in the early game. Pikeman=3 strenght +2=5, wich is the power of a rifelman 5 hammers cheaper. Nice try though, the bonuses were pretty well thought-out. And the starting power is a littel too much when paired with the others. There was a reason the Indians didn't get complete access to resources or else it would be unbalanced.