the eastern end of the Great Wall and the location of NakrangKun County

Since China's Warring States Period (403-221), successive dynasties have built great walls for various purposes. Among them, the Yan and Qin great walls were built to block the southward advance of the northern equestrian people, and this characteristic continues in the Han great walls. In this respect, the Great Wall of China is also a structure through which various Chinese dynasties marked their territory. It was also a border line, meaning that the inside of the Great Wall was the territory of the Chinese dynasty, and the outside was the territory of the northern equestrian people. Historically, the easternmost end of the Great Wall of China was Shanhaiguan, built during the Ming Dynasty (1368-1644). However, the Chinese National Museum now depicts the Great Wall as having reached near Pyongyang during the Qin and Han Dynasties. This was the logic of imperialist history first devised by Japanese colonial historian Inaba Iwagichi in 1910 as a peninsular view of history that sought to confine the power of Korean history to the Korean Peninsula. Inaba Iwagichi claimed in 『Treatise on the Eastern End of the Qin Great Wall and The Capital of Wangheom of Gojoson』 that the Qin Great Wall was connected to Suan of Hwanghae Province, present-day North Korea. In 1931, China's Wang Guo Liang accepted this theory of imperialist invasion in 『A History of the Chinese Great Wall』, slightly modifying it to say that the Qin Great Wall reached Pyongyang. Even after liberation, Korea's Kangdan History academia has been criticized for following the Japanese imperialist view of the history of invasion. Lee Byeong-do, who is considered to be the leader of the Korean Kangdan History academia, plagiarized the logic of Inaba Iwagichi in “Nakranggungo (樂浪郡考)” and claimed that the Qin’s Great Wall came down to Suan, Hwanghae Province of North Korea. Therefore, the claim that the eastern end of the Qin’s Great Wall, which is the logic of Japanese imperialism's invasion, reached all the way to the northern part of the Korean Peninsula is currently being accepted around the world. During the Ming Dynasty, the construction of Shanhaiguan, the easternmost mountain in history, was to prevent invasion by the Manchurians. The Qing Dynasty, founded by the Manchurian people, no longer built great walls. Not only the Qin general, but no Chinese general has ever entered the Korean Peninsula. The reason why the Qin Dynasty built the wall was to block the Huns and Gojoseon. The border between Jin and Gojoseon was near Galshi Mountain in present-day Hebei Province, and to the north of it are the remains of the Qin and Han Great Walls. There is evidence that says. The ancient Qin and Han generals could not climb this brown stone mountain. The eastern side of Galshi Mountain was the area of Gojoseon.