Now, the other things that you see, and we saw it on the last map, is that the Byzantine Empire is continuing to lose territory. And you can see the Muslim Empires, in this case it's the Seljuk Turks, are able to take even more territory. Now, one of the things that has happened by the time we look at this map, and it's not clear by looking on the map, is that you have in 1054 the Great Schism between the Latin Church centered at Rome and the Eastern Greek Church centered at Constantinople. And we have a whole series of videos on that, and all of the factors that led to it. But as we get to the time of this map, one of the things that the High Middle Ages is most known for, the Great Schism, or the East-West Schism, is one of them, the schism between what eventually becomes the Roman Catholic Church and the Eastern Orthodox Church. But what the High Middle Ages are also known for are the Crusades. As already mentioned, you see how the Seljuk Turks are able to take much of Anatolia, much of the peninsula, from the Byzantine Empire.