For the Protestant Reformation, that's a really big one guys in world history. And whether you're a kid in school or you're a lifelong learner or cray cray on the internet, we got it going for you right now. So why don't we go get her done. So before we get started with actually nailing things to walls, which we're going to do in a few minutes, we want to kind of set the major idea, which is really in the vocabulary itself. It's the Protestant Reformation, protest reform. And the big thesis, the big idea, is that this is a humongous turning point in world history, not only in terms of church stuff and religious stuff, but in terms of political stuff and the future of humankind. So it's a really, really big deal and we'll go over kind of its major effects towards the end of the video.