I have seen print ads for the Age of Empires III expansion for a while, but I had not read the text on them:
You are one with the land. Bury your enemies in it.
Defend the Americas as the mighty Sioux, Iroquois, or Aztecs. … The land will bear your legacy forever.
I do not know how many game developers have history degrees, but they might have looked up how that fight turned out… Meh, the game would not be much fun if disease took out 95+% of your units when you met the European powers.