In which John Green teaches you about the Protestant Reformation. Prior to the Protestant Reformation, pretty much everyone in Europe was a Roman Catholic. Not to get all great man, but Martin Luther changed all that. Martin Luther didn't like the corruption he saw in the church, especially the sale of indulgences, so he left the church and started his own. And it caught on! And it really did kind of change the world. The changes increased literacy and education, and some even say the Protestant Reformation was the beginning of Capitalism in Europe. Get the new Crash Course World History Character poster here: store.dftba.com/products/crashcourse-characters-poster You can directly support Crash Course at www.patreon.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing this content.