Seoul is the capital of South Korea. As a Special City, it is administered directly by the national government. With over ten million people, Seoul is South Korea's largest city and one of the most populous cities in the world.
The city is located on the basin of the Han River in the country's northwest. The North Korean border is about 50 km to the north.
Seoul first appears in history in 18 BCE, when the Baekje kingdom established its capital Wiryeseong in what is now around Songpa-gu, southeastern Seoul. Modern Seoul descends from the Goryeo-era city called Namgyeong, which then became the capital of Korea during the Joseon dynasty.
Seoul is in northwest South Korea. Seoul proper comprises 605.39 km² of area, roughly bisected into northern and southern halves by the Han River. The Han River and its surrounding area played an important role in Korean history. The Three Kingdoms of Korea strove to take control of this land, where the river was used as a trade route to China (via the Yellow Sea). However, the river is no longer actively used for navigation, because its estuary is located at the borders of the two Koreas, barred for entrance by any civilian. The city is bordered by eight mountains, as well as the more level lands of the Han River plain and western areas. |