page_title: Goguryeo
section_title: Revival and further expansion (300 to 390)
hierarchical_section_title: Goguryeo / History / Revival and further expansion (300 to 390)
caption_attribution_description: Korean crown
context_page_description: Goguryeo, also called Goryeo, was a Korean kingdom located in the northern and central parts of the Korean Peninsula and the southern and central parts of Manchuria. At its peak of power, Goguryeo controlled most of the Korean peninsula, large parts of Manchuria and parts of the Russian Far East and eastern Mongolia.
  Along with Baekje and Silla, Goguryeo was one of the Three Kingdoms of Korea. It was an active participant in the power struggle for control of the Korean peninsula and was also associated with the foreign affairs of neighboring polities in China and Japan.
  The Samguk sagi, a 12th-century text from Goryeo, indicates that Goguryeo was founded in 37 BC by Jumong, a prince from Buyeo, who was enthroned as Dongmyeong.
  Goguryeo was one of the great powers in East Asia, until its defeat by a Silla–Tang alliance in 668 after prolonged exhaustion and internal strife caused by the death of Yeon Gaesomun. After its fall, its territory was divided among the states of Later Silla and Balhae.
  The name Goryeo, a shortened form of Goguryeo, was adopted as the official name in the 5th century, and is the origin of the English name "Korea".
context_section_description: In only 70 years, Goguryeo rebuilt its capital Hwando and again began to raid the Liaodong, Lelang and Xuantu commandaries. As Goguryeo extended its reach into the Liaodong Peninsula, the last Chinese commandery at Lelang was conquered and absorbed by Micheon in 313, bringing the remaining northern part of the Korean peninsula into the fold. This conquest resulted in the end of Chinese rule over territory in the northern Korean peninsula, which had spanned 400 years. From that point on, until the 7th century, territorial control of the peninsula would be contested primarily by the Three Kingdoms of Korea.
  Goguryeo met major setbacks and defeats during the reign of Gogukwon in the 4th century. In the early 4th century, the nomadic proto-Mongol Xianbei people occupied northern China; during the winter of 342, the Xianbei of Former Yan, ruled by the Murong clan, attacked and destroyed Goguryeo's capital, Hwando, capturing 50,000 Goguryeo men and women to use as slave labor in addition to taking the Queen Dowager and Queen prisoner, and forced Gogukwon to flee for a while. The Xianbei also devastated Buyeo in 346, accelerating Buyeo migration to the Korean peninsula. In 371, Geunchogo of Baekje killed Gogukwon in the Battle of Chiyang and sacked Pyongyang, one of Goguryeo's largest cities.
  Sosurim, who succeeded the slain Gogukwon, reshaped the nation's institutions to save it from a great crisis. Turning to domestic stability and the unification of various conquered tribes, Sosurim proclaimed new laws, embraced Buddhism as the state religion in 372, and established a national educational institute called the Taehak (Korean: 태학; Hanja: 太學). Due to the defeats that Goguryeo had suffered at the hands of the Xianbei and Baekje, Sosurim instituted military reforms aimed at preventing such defeats in the future. Sosurim's internal arrangements laid the groundwork for Gwanggaeto's expansion. His successor and the father of Gwanggaeto the Great, Gogukyang, invaded Later Yan, the successor state of Former Yan, in 385 and Baekje in 386.
  Goguryeo used its military to protect and exploit semi-nomadic peoples, who served as vassals, foot soldiers, or slaves, such as the Okjeo people in the northeast end of the Korean peninsula, and the Mohe people in Manchuria, who would later become the Jurchens.
caption: A gilt-bronze crown from Goguryeo believed to have once adorned the head of a bodhisattva image.
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