Seoul — Capital of South Korea

Seoul has served as a capital city under one name or another for over 600 years, since General Yi Seong-gye, founder of the Joseon Dynasty, moved his new government there in 1394 and named it Hanseong (later also called Hanyang). The site was chosen partly on the advice of court geomancers, who read the surrounding mountains and the Han River as an auspicious configuration protecting the city on most sides while opening south toward the river — a layout that shaped Seoul's growth for the next six centuries and still defines its historic core.

The Joseon-era city was built around a set of grand palaces, most prominently Gyeongbokgung, the primary royal palace, completed in 1395 and later burned during the Japanese invasions of the 1590s before being rebuilt in the 19th century. Much of Seoul's old walled city plan, including sections of the original fortress wall and its great gates, survives or has been reconstructed, giving the modern metropolis a historic core that predates its skyscrapers by half a millennium.

Japan's 1910–1945 colonial occupation renamed the city Gyeongseong and reshaped much of its urban layout and architecture along Japanese colonial administrative lines, a period Koreans generally regard as one of forced modernization stripped of self-determination; the city reverted to Korean control and was renamed Seoul — a native Korean word simply meaning 'capital,' with no Chinese-character origin, unlike most Korean place names — after liberation in 1945.

The Korean War (1950–1953) devastated Seoul particularly badly: the city changed hands between North Korean, South Korean, and UN forces four times in under a year, and large portions were leveled in the fighting. Its postwar reconstruction, accelerating through the 1960s–1980s alongside South Korea's rapid industrialization, transformed Seoul from a war-ravaged city into one of the world's major economic and technology centers within a single generation, a trajectory Koreans often refer to as the 'Miracle on the Han River.'

Seoul today sits at the center of a metropolitan region that is home to roughly half of South Korea's entire population when surrounding Incheon and Gyeonggi Province are included, an unusually high degree of population concentration in a single capital region compared with most large economies, and one that continues to shape South Korean debates over regional development and housing costs.

The city's dense mix of ultra-modern high-rise districts, centuries-old palace grounds, and traditional hanok-style neighborhoods like Bukchon Village, tucked between two of the main royal palaces, gives central Seoul a layered visual character that reflects its long and repeatedly interrupted history — Joseon-era, Japanese colonial, wartime-destroyed, and rapidly rebuilt, all still visible within a few kilometers of each other in the historic core.

Namdaemun and Dongdaemun, two of the original Joseon-era great gates that once punctuated Seoul's city walls, still stand today as protected national treasures despite the walls themselves having been mostly dismantled during the Japanese colonial period, and Namdaemun in particular required extensive restoration after a 2008 arson fire severely damaged the centuries-old wooden gate structure.

Seoul's rapid postwar transformation from a war-damaged city into a global technology and cultural capital has made it central to South Korea's modern soft-power exports, including the Korean pop music and entertainment industry, and the city's dense concentration of media, corporate, and government institutions continues to reflect the high degree of centralization the Seoul Capital Area holds within South Korea's broader economy and culture.