The Jin Dynasty was founded by the ethnic minority known as the
Nuzhen who originated from the Heilongjiang River and Songhua River
regions and the Changpai Mountain area. In 1115, one of the Nuzhen
tribal leaders, by the name of Wanyan Aguda, unified the whole
Nuzhen group and established the Jin Dynasty in Acheng City (currently
in Heilongjiang Province).
Later, the capital city was moved to Yanjing (currently Beijing and
finally settled in Bianjing (currently Kaifeng).
Before and after the founding of the Jin Dynasty, there were constant
battles between Liao (916 - 1125), Jin and Northern
Song (960 - 1127). Initially, Jin launched a series of attacks on Liao.
This resulted in the five major cities of Liao being captured by
the Jin army one after another. In 1125, the Liao Dynasty was completely
defeated by the Jin Dynasty. After that, the Jin court focused
all its military forces on fighting with the Northern Song. Due
to the incompetence of the late Song's rulers, the Jin army easily
conquered Northern Song's capital city, Kaifeng, in 1127. Thus
the Jin Dynasty ended the Northern Song. After that, the Jin Dynasty
gradually unified the vast areas in the north along the Yellow
River.
After the founding of the Southern Song, the Jin court fell into
further confrontation with them. During the reign of Emperor Shizong
and Emperor Zhangzong, the national strength of the Jin Dynasty
was at its zenith, with the Xixia (a regime founded by another
ethnic minority called the Dangxiang) made into a subordinate country
and the weak Southern Song forced to make peace by paying tribute.
Interestingly, communication with other countries, especially
the Song Dynasty, led to the Jin Dynasty gradually adopting a feudal
system, resulting in a well developed social economy. Traditionally,
the Nuzhen people lived from fishing and hunting, with livestock
husbandry as their dominant industry. Under the influence of the
Han people, agriculture, commerce and the handicraft
industry made great progress. Significant cultural advancements
in drama and literature were also made in the Jin Dynasty.
During the late Jin Dynasty, rulers became corrupt and there was
a dramatic surge in national uprisings. What was worse, the Jin court
in that period made enemies simultaneously with Xixia, the Northern
Song and the Mongolian Kingdom. In 1234, the Jin army was finally
defeated by the allied forces of the Northern Song and the Yuan Dynasty
was founded by Mongolia. After 119 years, the Jin Dynasty came to
an end.