The Study Of Bohai Kingdom In The Da Yinzhuan Period

At the end of the ninth century and the beginning of the tenth century,the political and economic crisis in Bohai became more and more obvious,and the state power declined obviously.Bohai Kingdom is located in the land hub of Northeast Asia,and the surrounding powers of the same era are around it.After the fall of the Tang Dynasty,the Bohai Kingdom,which lost the protection of the Tang Dynasty,was exposed in front of the powerful Khitan.In the first year of Kaiping(907 A.D.),Daichen was conferred by Qian Miao,king of Wu and Yue.He became the last king of Bohai State and began to govern it.This paper is divided into four chapters: the first chapter discusses the social development and the situation in East Asia before the Bohai Da Yinzhuan ruling Bohai.It is pointed out that Bohai State is a state established by the people of Kaihe.In the eighth and ninth centuries,Bohai State was in the period of upward development most of the time,but declined at the end of the ninth century.With the fall of Tang Dynasty in the early 10 th century,Bohai State was in a passive diplomatic situation in East Asia.The second chapter mainly expounds the political,economic and cultural characteristics of Bohai State during the reign of Da Chen.Economically,the agricultural economy is developing steadily,the commercial development is greatly impacted by the demise of the Tang Dynasty,and the handicraft industry has developed rapidly.In terms of culture,it has developed continuously on the basis of absorbing the culture of Tang Dynasty,and gradually has its own characteristics.The third chapter mainly studies the diplomatic history of the Bohai State during the reign of Da Chen.It respectively studies the exchanges between the Bohai State and the later Tang,Houliang,Japan,Xinluo and Qidan,including the war between the Bohai State and Qidan.The fourth chapter evaluates the development of Bohai State in the period of Da Yinzhuan.In diplomacy,the Bohai Kingdom is still in a state of isolation.But after all,Daichen had tried to change the disadvantageous situation of Bohai State actively,and there was something worthy of praise during his reign.In a word,by examining the economic,political,cultural and diplomatic situation of the Bohai Kingdom in the period of Da Yinzhuan writing,as well as the course of the war between the Bohai Kingdom and Qidan,the article can give a more profound and comprehensive evaluation of the Bohai Kingdom in the period of Da Chen writing,and help to understand the pattern of the sub pattern in the late stage of the Bohai Kingdom.