Jin dynasty

Overview

The Jin dynasty was a northern Chinese polity established by the Jurchens (1115–1234). Wanyan Aguda, leader of the Jurchen tribes, rose against the Liao dynasty and established the Jin state in the first year of the Shouguo era, with its capital at Shangjing Huining Prefecture. The Jin successively destroyed the Liao dynasty and the Northern Song, extending its territory south to the line of the Huai River and the Qinling Mountains and entering a long confrontation with the Southern Song. In its early period, the Jin retained and adapted parts of the Liao central administration and the Bojilie system, but it later underwent increasing Sinicization, moved the capital to Zhongdu (present-day Beijing), and implemented institutions including the imperial examination system and the Meng'an Mouke system. Agriculture, handicrafts, and commerce all developed. After the rise of the Mongols, they became the Jin's principal enemy. In the late Jin period, the capital was forced south to Bianjing, and the dynasty was finally destroyed at Caizhou in 1234 (the third year of the Tianxing era) under the joint attacks of the Southern Song and the Mongols.

Historical Development

Establishment: The Jurchens had long lived in the region between the Changbai Mountains and the Heilongjiang river system. During the Liao dynasty, officials were established in their lands and extraction was imposed on them, provoking discontent among the Jurchen tribes. Aguda, leader of the Wanyan clan, rose in revolt in 1114 (the fourth year of the Liao Tianqing era). In the following year, beside the Anchuhu River, he proclaimed himself emperor and established a state named "Jin," adopted the era name Shouguo, and made Shangjing Huining Prefecture the capital. He became known to history as Emperor Taizu of Jin.

Height of power: Under Emperor Taizu and Emperor Taizong, the Jin waged successive campaigns against the Liao dynasty and destroyed it in 1125 (the third year of the Tianhui era). The Jin then attacked the Song to the south. In 1127 (the second year of the Jingkang era), it captured Bianjing and took the Huizong and Qinzong emperors north, bringing the Northern Song to an end in the Jingkang Incident. Jin forces at one point advanced into Jiangnan. The Jin and Southern Song later used the Huai River as their boundary, and the Jin entered its period of greatest power.

Turning point: During the reigns of Emperor Xizong and Prince Hailing, the Jin introduced Han-style institutions and strengthened central authority. Prince Hailing Wanyan Liang moved the capital to Zhongdu and launched a large southern campaign during the Zhenglong era with the aim of unifying Jiangnan. His forces were defeated by the Song at the Battle of Caishi, and he was soon killed by his own officers. The Jin and Song subsequently concluded a peace settlement and remained in a prolonged standoff, while the Jin state gradually stabilized.

Decline: After the reign of Emperor Zhangzong of Jin, the dynasty entered its later phase. The Meng'an Mouke system became increasingly corrupt, peasant uprisings occurred frequently, and disputes between Sinicizing and conservative tendencies continued within the Jurchen elite. After the Mongols rose in the steppe, they repeatedly invaded southward. In 1214 (the second year of the Zhenyou era), the Jin was forced to move its capital to Bianjing, after which its territory steadily contracted.

Fall: By the accession of Emperor Aizong, the Jin held little more than Henan. After a disastrous defeat at the Battle of Sanfengshan in 1232 (the first year of the Tianxing era), the dynasty held out in fortified positions. Under the combined pressure of the Mongols and the Southern Song, Emperor Aizong transferred the throne to the final emperor as Caizhou was about to fall in 1234 (the third year of the Tianxing era). The city then fell and the state was destroyed. From its establishment to its fall, the Jin lasted about 120 years.

Politics and Institutions

Central administration: In its early period, the Jin used the traditional Jurchen Bojilie council system, in which multiple Bojilie jointly assisted in government. It later gradually reformed its institutions on the model of the Liao and Song, established the Department of State Affairs, and created a Grand Councilor system. After the reign of Prince Hailing, the old Bojilie system was abolished and a central administrative structure centered on the Department of State Affairs was established. A Censorate was also created to supervise officials (see the relevant entries for details).

Local administration: The dynasty used a circuit–prefecture–department–county hierarchy and established Meng'an Mouke units in various areas as grassroots organizations combining Jurchen military and civil administration (see the relevant entries for details).

Official recruitment: The Jin used the imperial examination system. Examinations were divided into several levels, including local, prefectural, metropolitan, and palace examinations, with subjects such as literary composition and classical interpretation. They provided a major avenue for Han Chinese to enter official service. Hereditary office and appointment through privilege also remained important (see the relevant entries for details).

Law: The Jin compiled the *Taihe Code* with reference to Liao and Song laws while also incorporating older Jurchen customs, creating a distinct body of criminal law and institutions (see the relevant entries for details).

Supervision: The dynasty established the Censorate and local judicial inspection mechanisms to impeach and investigate officials (see the relevant entries for details).

Military and Foreign Relations

The Jin relied primarily on cavalry. Its military organization used the Meng'an Mouke system to organize Jurchen soldiers, who were mobilized in wartime under a system combining military service with agricultural production. The dynasty successively fought and negotiated with the Liao dynasty, Northern Song, Southern Song, Western Xia, and the Mongols. After destroying the Liao and Northern Song, the Jin confronted the Southern Song for a long period and concluded several agreements, including the Treaty of Shaoxing and the Longxing Peace Accord, which defined borders. Relations with Western Xia alternated between alliance and warfare. After the rise of the Mongols, Jin efforts to cooperate with the Song against the Mongols failed, and the dynasty ultimately collapsed after years of warfare with both the Southern Song and the Mongols.

Economy and Commerce

After its establishment, agriculture in the North China regions occupied by the Jin recovered to some degree under its administration, with Meng'an Mouke households and Han Chinese farming households cultivating land side by side. The Jin carried out the Tongjian Tuipai policy to verify household registration and landholdings and issued currency, including paper jiao notes alongside copper cash. Commerce became increasingly prosperous. Zhongdu (present-day Beijing) became a major northern economic and commercial center, while coastal outlets in the southern circuits, the canal corridor, and land and water trade routes were also active. In the late Jin period, warfare and excessive issuance of jiao notes contributed to economic collapse.

Culture and Society

Jin culture combined Jurchen, Han Chinese, and Khitan elements. The dynasty employed Han Chinese Confucian scholars, promoted Chinese-language education and the imperial examination system, and saw development in Confucian classical studies, historiography, and literature. The phrase "Su learning moved north" was used in connection with its literary culture, and Jin poetry drew on Song traditions and was praised by writers of the Yuan and Ming periods. Yuan Haowen was a major literary and historical figure of the late Jin and compiled the *Zhongzhou Collection*. Khitan, Jurchen, and Chinese writing were all used; the Jurchen script was created by order of Emperor Taizu. Buddhism and Daoism, especially the Quanzhen School, were influential. Jurchens, Han Chinese, Khitans, and other groups lived together, and processes of Sinicization and ethnic integration continued.

Rulers and Governing Core

Wanyan Aguda, Wanyan Sheng, Wanyan Dan, Wanyan Liang, Wanyan Yong, Wanyan Jing, Wanyan Yongji, Wanyan Xun, Wanyan Shouxu, Wanyan Chenglin.

> This section describes the position of rulers in the development of the polity; complete biographies are carried by the corresponding person entities.

Historical Assessment and Legacy

Contemporary assessments: Emperor Shizong of Jin was later praised as the "Little Yao and Shun," and his Dading-era governance was commended. The Jin treated literati with respect, and its use of the imperial examinations won support among scholars. In the late Jin, however, political corruption, excessive issuance of jiao notes, and suppression of the populace generated contemporary resentment.

Later historiographical assessments: Later historians have often acknowledged the Jin's military achievements in destroying the Liao and Northern Song and establishing rule in northern China, as well as its institutional and cultural development. It is viewed as an important polity in the establishment of a northern Chinese political order after the Liao. Historians have also pointed to tensions between Sinicization and older Jurchen customs, the gradual corruption of the Meng'an Mouke system, and failures in handling relations with the Song and Mongols as important causes of its rapid collapse. The Yuan-period compilation of the *History of Jin* preserved extensive records of Jin institutions and provides an important documentary basis for modern research on Jin history.