Hong Kong has been under the jurisdiction of the central government of China since Qin Shihuang unified China. Until the British occupation of Hong Kong, Hong Kong has never been interrupted. After Liu Bang, the emperor of Han Dynasty, calmed down the world, he adopted a policy of appeasement to Zhao Tuo and became king of South Vietnam because Lingnan was too far away. After Liu Bang's death, Zhao Tuo became independent again. The imperial court had many unsuccessful expeditions and had to send people to reward him. Only then did Zhao Tuo remove the title of emperor and submit to the Han Dynasty. The Han Dynasty set up nine counties here, such as Nanhai, Hepu and Jiaozhi. Hong Kong is under the jurisdiction of Boro County, Nanhai County. From then on, it continued to the Western Jin Dynasty.
Hong Kong Night
In the six years of the Eastern Jin Dynasty, Emperor Chengdi delimited the eastern part of Nanhai County and set up another Dongguan County under the jurisdiction of Baoan, Xingning, Haifeng and other six counties. The jurisdiction of Bao'an County, including today's Hong Kong and Shenzhen, Dongguan City, is today's Nantou City of Shenzhen. In the Sui Dynasty, Dongguan County was abandoned and its jurisdiction was merged into Nanhai County, Guangzhou Prefecture. Baoan County was also changed into Nanhai County, while Hong Kong was still under the management of Baoan County. In the two years from Tang Suzong to De, Bao'an County was changed to Dongguan County, and Hong Kong was under the jurisdiction of Dongguan County. In the first year of Ming Shenzong's Wanli reign, Liu Wen, divided the coastal area of Dongguan County into another county named Xin'an County. Since then, Hong Kong has been under the jurisdiction of Xin'an County. Until the modern Opium War, the British saw Hong Kong as an excellent deepwater port, especially Victoria Port, which was an important transportation hub in Southeast Asia. In 1842, the Opium War between China and Britain. After the defeat of the incompetent Qing government and the signing of the unequal Nanjing Treaty, one of the treaties declared that Hong Kong Island was separated from Qing Gov. to Britian, Hong Kong began its colonial career for about a century and a half. Until 1984, the Chinese and British governments signed a joint declaration on Hong Kong; in July 1997, Hong Kong became a special administrative region of China, enabling Hong Kong's sovereignty to return to the Chinese government.