China, an ancient national name, has lived and multiplied in Northeast China since ancient times and is the ancestor of Manchu. Ancestors can be traced back to prudence in Shang and Zhou Dynasties and "Loulou" in Warring States Period. The Northern Wei Dynasty called it "unlucky", and the Tang Dynasty wrote cymbals. There were dozens at first, and then it gradually developed into seven departments. Mainly distributed in Xiaomi Shuishui (now Songhua River) and Heishui (now Heilongjiang). Millet flour and black water are the most powerful. The development level of each department is different, and most of them make a living by shooting with horns and arrows and digging holes in the soil. The millet flour in the south is more advanced, planting crops such as millet, wheat and rice, raising pigs and horses, making wine with rice and dressing with pigskin. Iron is used in the northernmost part of the black water, and self-made poison is used to coat animals on arrows. At the beginning of the 7th century, all services at the end of Xiaomi belonged to Koguryo. In 725, the Tang Dynasty established Heishui Prefecture in Heishui area, with the governor as the leader and other ministries subordinate to the governor's prefecture. The leaders of various departments are the state secretariat, which is supervised by the long history of the Tang Dynasty. In 698, Mo established the Earthquake State (later renamed Bohai Sea), and its leader Da was made King of Bohai Sea in the first year of Kaiyuan in Tang Dynasty (7 13). Buy HuHanZhou, grant HuHanZhou governor. Since then, the area has been named Bohai Sea. In 926, it was destroyed by Lu Ye Abao, the emperor of Liao Dynasty, and renamed Dongdan. /kloc-changed its name to nuzhen after 0/0 century.
Mohong is an ancient nation in the northeast of China. During the Zhou and Qin Dynasties, his name was Su Shen, and he lived in Baishan (or Buxian Mountain, Tutaishan Mountain, Dabaishan Mountain and Changbai Mountain). He took fishing and hunting as his profession and established a close relationship with the Central Plains. From the Han Dynasty to the Wei and Jin Dynasties, the descendants of Liu were called Lou, who had served for a long time and belonged to Fuyu. In the early years of Cao Wei, he got rid of her husband's fetters and paid tribute directly to the Central Plains. The society developed rapidly, and private ownership and polarization between the rich and the poor appeared. In the Northern Wei Dynasty, Lou changed his name to Buji, which was even more powerful. He gradually defeated Fuxi and merged into the Songhua River basin, still belonging to the Central Plains regime. During the Sui and Tang Dynasties, Buji, also known as Mohong, had seven tribes, including Sumo, Baishan, Dubo, Anqigu, Shi Hao, Vone and Heishui. Among them, Xiaomi, named after living in Xiaomi Shuishui (now the second Songhua River), is the most powerful, with thousands of soldiers. In 605, Sogdi was defeated in Korea, and its leader, Tu Jinai, led eight people to attach themselves to Sui from the northwest of Fuyu City (now Siping, Jilin), and were placed in Liucheng (now Chaoyang, Liaoning), gradually merging with the local Han nationality. The sumo wrestlers who stayed in their hometown, together with Baishan, Du Bo, An Qigu and Shi Hao, became the vassals of North Korea. In 668 (the first year of the Tang Dynasty), Korea was destroyed by the Tang Dynasty, and this part of Hou Ji people were moved to Yingzhou (now Chaoyang, Liaoning) together with tens of thousands of Korean survivors who violently resisted the Tang Dynasty. In 696 (the first year of Wu Zhou Tian Tong's long live), Li Dezhong, a Khitan, fought against the Tang Dynasty according to Yingzhou, and the local Mohong people and Korean adherents flew back to China. Under the command of Hou Ji, some of them crossed the Liaohe River to Mohong's hometown. In 698, they were in Dongmoushan (now northeast of Dunhua, Jilin) and Austria. At the beginning, in order to guard against the crusade of the Tang court, the shock country had to be attached to the Turks. In 707 (the third year of Tang Shenlong), the Tang court sent Zhang Shang, an imperial envoy, to sue for reconciliation.
In 7 13, Cui Xin, the emperor of the Tang Dynasty and the Qing Dynasty, was appointed as the special envoy of Xuanlao and Da Luorong, and was awarded the title of King of Bohai County and the title of Governor of Huhan Prefecture, becoming the minister of Tang Fanting. In 762 (the first year of Tang Baoying), the third Wang Daqin Mao became the "King" and became more intimate with Tang Ting. Since then, successive attacks by kings in the past dynasties have been inscribed by the Tang court, and finally the Tang Dynasty sent envoys to the Tang Dynasty hundreds of times. In the meantime, except for a military conflict with Tang in the Wulin, they have been reconciled with Tang. After the demise of the Tang Dynasty, Bohai continued to pay tribute to Houliang and Houtang, maintaining the relationship between ministers and the Central Plains Dynasty.
The territory of the Bohai Sea was initially limited to a part of my hometown, "square miles". After the expansion of Da Zuorong and Da Wuyi's father and son, the territory gradually expanded. The 10th Wang Xuan's Got Talent Show is known as the Lord of the rejuvenation of Bohai Sea, with vast land, starting from Silla in the south and reaching all parts of the country in the north. The territory is "5,000 Li". Generally, Nihe River in the south (now Longxing River in South Hamgyong, North Korea) is connected with Silla, east to the Sea of Japan, northeast to the lower reaches of Wusuli River, adjacent to Heishui River, and north to Nahe River (now including most of the northeast, the northern part of the Korean Peninsula and parts of the Soviet Union along the Sea of Japan). The capital city started in the "old country" (now Dunhua, Jilin), and Tang Tianbao moved to Longquan House in Beijing at the end. Since then, except that Tang Zhenyuan has been to Long Yuan House in Tokyo (now Hunchun West, Jilin Province), he has been based in Beijing. Most of the residents are the cymbals, with a certain proportion of Korean adherents, as well as the Han nationality and a small number of Turks, Khitans and Shiwei people, among which the cymbals are mainly millet flour. In the early days of the founding of the People's Republic of China, there were hundreds of thousands of households with a population of several hundred thousand, and in the later period, the population gradually increased to about 3 million, thus gaining the reputation of "rejuvenating the country in the east".
Under the strong influence of the Central Plains civilization, the Bohai regime quickly completed the process of feudalism, and its various systems followed the example of the Tang Dynasty. The official system was as follows: the central government has three provinces: Zhongtai, Zhao Xuan and Tangzheng, six departments of loyalty, benevolence, righteousness, courtesy, wisdom and faith, and seven halls of Zhengtai, Dianzhong, Zongshu, Dachang, Sibin, Dainong, Treasurer and Catering. Locally, there are administrative divisions such as Beijing, Fujian, Zhou and County. At its peak, there were five capitals, fifteen houses, sixty-two houses and more than one hundred counties. Militarily, it also imitated the sixteen guards system of the Tang Dynasty, and set up ten guards, such as left and right fierce Ben, Xiong Wei, seven guards, south left and right guards and north left and right guards. In the later period, there were also the establishment of the left and right Shence Army and the left and right armed forces, with hundreds of thousands of soldiers at most. Have a law, prison, etc.
Due to the relative stability of society, ironware is widely used in production, and influenced by the advanced production technology of the Central Plains, the social economy of Bohai Sea has made remarkable development and progress. Although some remote areas are still engaged in fishing, hunting and gathering, important areas around Wujing, south and southwest have developed rapidly. Agriculture has become the most important production sector, planting rice in a large area and cultivating the famous Lucheng rice in Yanbian area today; Raise tussah in large quantities. Animal husbandry has also developed greatly, and excellent varieties have been cultivated, including stubborn pigs, horses and rabbits in Taibai Mountain. The production of various handicrafts has also reached a high level, with more than thousands of professional workers alone. The handicrafts produced are well known, such as subway, wrought iron copper, gold and silver Buddha, Longzhou, Zhouxianbu, Wozhou cotton, agate cabinet, purple porcelain basin and so on. With the development of economy, a number of emerging cities emerged, and by the end of the year, there were more than 100, among which Shangcheng was the largest city in Northeast China at that time, with a circumference of 32 miles and magnificent buildings, imitating Chang 'an. The traffic is quite developed. There are six land and water trunk lines, such as tribute road, Yingzhou road, Qidan road, Silla road, Japan road and Heishui road, which lead to the Central Plains, surrounding areas and Silla, Japan and other countries. "On-site transactions" and mutual transactions with the mainland are endless, and maritime trade with Japan is also quite active, with a transaction often exceeding several hundred thousand dollars.
Culture and education have also made great progress. Bohai Sea keeps sending students to Chang 'an imperial academy to study ancient and modern systems, and its characters are written in Chinese characters. In the developed areas around Wujing, a relatively systematic education system should be established from top to bottom, taking Central Plains education as a model. Whether it is Confucianism, religion, literature, music, singing and dancing, painting, sculpture, science and technology, etc. They have made some achievements, and a number of famous scholars, writers, artists and navigators have emerged. Among them, the great poet Pei was once honored as the "leader" of poetry circles by his peers in Japan; Wang Zimou won the praise of famous poets in the late Tang Dynasty for his "China quatrains". Confucianism has become the dominant ideology in Bohai society, and Buddhism in the Central Plains has spread widely throughout the country. In terms of living customs, in addition to maintaining the inherent tradition and following some old customs of Korea and Qidan, it also actively absorbs new factors from the Central Plains, leading to the gradual approach and convergence with the Han nationality in many aspects such as daily life, diet, clothing, funeral celebrations, sports and entertainment. All these contributed to the formation of the relationship between the Bohai Sea and the mainland. Haidong culture, as a branch of the prosperous Tang civilization, occupied an important page in the history of the development of the Chinese nation.
However, with the completion of the feudalization of Bohai State, various contradictions within its society are also developing and intensifying. Since the times of Xuan Xi and David, it has embarked on the road of decline. The imperial clan and the whole ruling class are decaying day by day, the struggle for power and interests within the ruling group is getting more and more fierce, and the resistance of the northern Blackwater ministries is fierce, which seriously weakens the strength of the Bohai regime and provides an opportunity for the Khitan to invade and attack the west. After more than ten or twenty years of repeated fighting, at the beginning of 926, the Khitan captured Fuyu City and marched into the capital Beijing under Khan City. At the end of the Bohai Sea, Wang Da was forced to surrender and the country was ruined.