History
The Han River basin has been fought over since the Three Kingdoms. Baekje built its first capital here, with earthen walls whose remains survive in southeastern Seoul, until Goguryeo drove it south in 475; Silla took the basin in the 6th century and used it as the gateway to China across the Yellow Sea. Under Goryeo the capital lay just to the north at Kaesong, and the site of Seoul was a secondary capital.
In 1394 the founder of the Joseon dynasty, Taejo, moved his court to Hanyang — today's Seoul — enclosing it with a city wall over the surrounding peaks and building Gyeongbokgung palace and the Jongmyo royal shrine. Japan's invasions of the 1590s burned the palaces, and in 1636–37 King Injo held out against the Manchu Qing in the mountain fortress of Namhansanseong before surrendering. In the 1790s King Jeongjo built Hwaseong at Suwon, partly to honour his father's tomb nearby. Ganghwa Island, at the mouth of the Han, saw French and American expeditions in 1866 and 1871, and the 1876 Treaty of Ganghwa with Japan led to the opening of Incheon's port.
Under Japanese rule Seoul was the colonial capital. During the Korean War it changed hands four times, and General MacArthur's landing at Incheon in September 1950 turned the course of the war. The armistice line of 1953 runs across northern Gyeonggi, placing the capital close to the border. From the 1960s the city exploded south of the river into Gangnam and outward into planned new towns, and it hosted the 1988 Summer Olympics.
