You can see the multiple Crusades that occur over roughly the next 200 years. And the Crusaders were trying to reclaim land from the Muslims, and especially the Holy Land, much of which is below the map where you can't quite see it right over here. But it turns out that when they are able to reclaim some of that land, they don't give it back to the Byzantines. They set up what are known as Crusader Kingdoms. And you can see some of them right over here in this bluish color. So once again, you had this East-West Schism, and the Crusades are further expanding the division between East and West. And that really becomes significant in 1204 when the Crusaders themselves sack Constantinople, take Constantinople from the Byzantines.