Now, when all of these cross-excommunications are happening, many people probably view this as, hey, this is just a power struggle between folks, probably not a big deal. But remember, this is over centuries of increasing division. Not only do you have language division, you have the West, you have a leaning towards these Germanic kingdoms in the East. They say, hey, we are the real Roman Empire. You have these issues of filoque and other things. And this event in 1054 eventually gets known as the Great Schism or the East-West Schism because it only gets further and further cemented only further and further apart. As you get to the end of the 11th century, the Crusades began.