Recently, a South Korean netizen made a rather controversial point: if both the Mongol Yuan and the Manchu Qing were considered part of Chinese civilization, then according to the same logic, Goguryeo should also be considered the history of Korea. At first glance, this statement seems plausible, but those who know history deeply will dismiss it because it seems to be an attempt by Korean netizens to confuse or falsify history.
First, let's look at the nature of the Mongol Yuan and the Manchu Qing. Before the rise of these two dynasties, they had always considered themselves part of the Chinese civilization. Judging from some research, these two ethnic groups were actually Han Chinese who had left the center of Chinese civilization for various reasons. Although the bloodlines may not be pure, there is no doubt that their roots all come from the Chinese civilization.
In addition, the history of the Mongol Yuan and the Manchu Qing Dynasty is included in the entire history of Chinese culture, and is deeply influenced by Chinese civilization and even fully integrated into it. It can be said that these two seemingly foreign regimes are in fact closely related to Chinese civilization. Without the influence of Chinese civilization, they would probably remain pristine for a long time, like some of the tribes on the peninsula.
In contrast, the history of Goguryeo is independent of Korean history. Goguryeo originated in northeastern China, and its civilization was also heavily influenced by the Chinese civilization. The history of South Korea and North Korea should be traced back to Samhan (Mahan, Jinhan, and Benhan). The regimes on these three peninsulas were formed in the second century BC, when they were still in a primitive state, while the Chinese civilization had reached a high level of civilization, with an advanced political system and a level of productivity.
We can also see that both Genghis Khan and Nurhachi were born in what is now China, and the same is true of Goguryeo's place of origin. Therefore, these three historical regimes can be undoubtedly counted as part of the Chinese civilization. During the period of Goguryeo's existence, the history of the peninsula can be seen as the history of being oppressed by Goguryeo. Without the blessing of Chinese civilization, the Samhan regime would have been wiped out long ago.
In addition, there is currently only one uninterrupted ancient civilization in the world, and that is the Chinese civilization. We cannot say that India and Egypt still carry their ancient civilizations today, because their original civilizations have been conquered by expeditionary foreign civilizations. On the contrary, Chinese civilization continues to this day. It is incomprehensible to imagine Korean netizens counting Goguryeo, which once tried to destroy their own civilization, as their own history.
According to this logic, Japan invaded Korea many times in history and was closely associated with the Baekje regime on the peninsula. So, can we also count the history of Japan as the history of the peninsula? In general, the entire history of East Asia has been covered by Chinese civilization, and the idea that any East Asian country would try to exist on its own in isolation from Chinese civilization seems unrealistic.