Temporary List of World Heritage Sites - Samnyeonsanseong Fortress

 Samnyeonsanseong Fortress (Historic Site No. 235) was completed in three years after the construction of the castle in the 13th year of King Jabi of Silla (470), and was renovated in the 8th year of King Soji (486). In the History of the Three Kingdoms, there is a record that it was called Samnyeonsanseong Fortress because it took three years to build. The length of the castle is 1,680m, and the inner and outer walls of the castle are flat natural stones, one layer is stacked horizontally and the other layer is stacked vertically, and the height is 13-20m, which varies depending on the topography. The walls inside and outside the fortress are built using stones or by mincing soil. Inside the fortress, there are four different types of gates, seven Ongseong Fortresses, five well sites, and water polo sites. At the time of excavation in 1983, earthenware sculptures and various relics from the Three Kingdoms period to the Goryeo and Joseon periods were discovered, confirming that the castle was used for a long time from the Silla period to the Joseon Dynasty. This fact is thought to be due to the solidity of the fortress and ease of Mercury, as well as the military hub where Samnyeonsanseong Fortress is located. The robustness of the walls can be confirmed through the remaining walls, and the method of constructing the walls of Samnyeonsanseong Fortress is very important as research data on ancient construction methods in Korea. Kyunghyang Shinmun Permio -- http://www.khan.co.kr/section/art_view.html?artid=200311241816481&code=900102 The place where international talks between Silla and the Party were held = Samnyeonsanseong Fortress, built during such a turbulent period, was the most central castle built by Silla with its national strength. The importance of fortress can be found in the deeds of King Taejong Muyeol, who later joined hands with the Party to destroy Baekje. King Taejongmuyeol, who destroyed Baekje on July 18, 660, moved from Sabiseong Fortress in Buyeo, the capital city of Baekje, to Samnyeonsanseong Fortress in September. King Gojong of the Tang Dynasty appointed Wang Mundo, the head of the Tang Dynasty's left-wing Jungnangjang, to the Dogok with the Woongjin Dodokbu to rule Baekje. On September 28, an international conference between Silla and Tang will be held at Samnyeonsanseong Fortress. It was the venue for the meeting between Wang Mun-do and King Muyeol, who brought the records and gifts of King Gojong. It was the moment when Wang Mun-do stood facing east and gave a record to King Taejong Muyeol, who was facing west, and gave a gift again. But something strange happened. Wang Mun-do suddenly became ill and died, and the person who served him replaced the delivery ceremony (Samguk Sagi). Why did Wang Mundo die? It is not on the record, but Wang Mun-do, who climbed the rugged fortress, died suddenly due to chronic diseases such as heart disease. Why did King Taejong choose Samnyeonsanseong Fortress as the place to greet the envoy of the Tang Dynasty? Wouldn't he have chosen Samnyeonsanseong Fortress, an iron fortress, to cut off the Tang Dynasty's ambition to invade the Korean Peninsula in cooperation with Silla? As such, Samnyeonsanseong Fortress was built with confidence by Silla. This Samnyeonsanseong Fortress, the oldest stone fortress whose construction date and name have been confirmed, is also mysterious and scientific in its construction method. Professor Cha Yong-gul of Chungbuk National University exclaims, "If one floor was stacked horizontally, the next floor was stacked vertically, and it was a method of alternating stones and stones in the shape of a well," adding, "It was an elaborate construction method that even modern masons could not easily try because they said. The Wheel of King Taejong's Muyeol = The main gate of this castle is believed to be the west gate site located in the lowest valley. The main gate of Samnyeonsanseong Fortress, which was responsible for two functions: combat and supply, would have been a low place where supplies could enter and exit. A wheel mark remains on the gate stone at the west gate. There are traces of a wide range of cart wheels with a height of 1m66 between the two wheels. Isn't this trace the wheel of King Taejong? ******************************************************************* The act seemed to be just an ordinary saint, but it is known as a great castle among the builders. I think the 성 construction method is great. However, I don't know why the construction method is so solid because of the low experience of the work. Anyway, the length of the fortress is about 2km, the height is about 13-20m, and it is located in the mountain. It seems obvious that you are a great adult.