Hm. I'm all for educational games if they, say, help kids learn maths or spelling or something, but I've always thought that making a game out of history or politics was inherently a bad idea. Not to mention bringing religion into it.
Now, I know that tons of games exploit history, and technically could 'teach' awful, biased, or outright false lessons about any of the subjects listed above. But the difference is that they're not being marketed specifically for that purpose. If you're going to make an 'educational' game, then you should leave that out of it. Either that, or you have to take a modern historical approach and try to teach both sides, which I doubt these games do. I could, however be wrong.