The Muromachi period is often known as the Ashikaga period, or the Ashikaga shogunate, but it's named Muromachi for the district of Kyoto at which it had its capital. And even though over the course of the Muromachi period, the emperor at different points was subsumed into the power of the shogun, this is considered, especially the later Muromachi period, as one of the more fragmented times of Japanese history. You had many civil wars, you had a lot of internal conflict, and it was only at the end, as we get to the end of the 16th century, that Japan gets reunified. And one of the key factors that allows it to get reunified is that in the middle of the 16th century, Portuguese traders show up, and they introduce guns to Japan. And one daimyo in particular is able to take significant advantage of those guns, and that is Oda Nobunaga. Oda Nobunaga, as I mentioned, was a powerful daimyo, one of these lords who controlled what you can kind of consider to be a county of Japan, and using these guns, he's able to put most of the other daimyos, most of the other lords into submission, and he begins to significantly unify Japan. Now, he is eventually assassinated, and his successor, Toyotomi Hideyoshi, continues to unify Japan even further.