Where are the geographical locations and historical knowledge of Hong Kong and Macao?

1. Geographical location: Hong Kong is located in the south of China, the core of the East Asian economic circle. Its geographical advantages are obvious: it borders the Pearl River Estuary in the north and the South China Sea in the south, and is located between Southeast Asia and Chinese mainland, and is the economic, trade and financial center of the Asia-Pacific region. It is a special administrative region in southern China, located on the west bank of the Pearl River Estuary, adjacent to Zhuhai City, facing the South China Sea in the east and Zhongshan City in Guangdong Province across the sea in the northwest. 2. Historical knowledge The history of Hong Kong can be traced back to the Neolithic Age, but in modern history, Hong Kong was ceded to Britain and became a British colony because of the Sino-British treaty of nanking in 1842. In 1997, Hong Kong returned to China and became a special administrative region of the People's Republic of China. During the Ming Dynasty, it was a trade concession granted by the government of China to the Portuguese kingdom, and a homophonic word ""was formed in Portuguese and Chinese, and its colonial tradition, including the legal system, was retained for a long time. In 1999, it returned to China and became a special administrative region of China.