According to historical documents, Bohai Kingdom was founded in 698 AD, destroyed by Qidan in 926 AD, and has survived for 229 years. Bohai Sea has been the king of 15 generations since it became a great leader. At the peak, there were 5 Beijing, 15 prefectures, 62 states and 100 counties. The jurisdiction of Bohai includes Tokyo in the northeast of China, the northeast of Korea Island and the coastal areas in southern Russia. Fiona Fang is "5,000 Li" and is known as "Guo Sheng in the East" by the Central Plains. Because of advocating Chinese style, innovating, seeking repair in Wan Li and prospering trade, Bohai Kingdom became prosperous and dominated the north, creating the glory of the north at the same time of the prosperous Tang Dynasty.