Chongqing, abbreviated as "Yu", also known as Mountain City and River City, is a municipality directly under the Central Government of the People's Republic of China, a national central city, a mega-city, one of the important national central cities approved by the State Council, the economic center of the upper reaches of the Yangtze River, an international consumer center, an advanced manufacturing base, a financial center of the West, and a scientific and technological innovation center of the West, International comprehensive transportation hub city and open door gateway, with 38 districts and counties under its jurisdiction, a total area of 82,400 square kilometers, and a resident population of 31,914,300 at the end of 2023. Located in the southwest of China, Chongqing is the economic, financial, scientific and technological innovation, shipping, trade and logistics center of the upper reaches of the Yangtze River, and the only national logistics hub with five types of logistics, which plays a supportive role in the development of the western region, a driving role in the "One Belt, One Road", and an exemplary role in the Yangtze River Economic Belt. Dazu Stone Carving, World Natural Heritage Wulong Karst and Nanchuan Jinfo Mountain and other landscapes. Chongqing is a famous national historical and cultural city, the birthplace of Bayu culture, with a history of more than 3,000 years of founding, and has been known as "Born Chongqing" since ancient times. The Song Guangzong, who was first crowned King Gong and then Emperor, elevated Gongzhou to Chongqing Prefecture, which gave the city its name. The capital of Chongqing was founded by the Xia and Shang Ba states, and the state of Chongqing was founded by the Daxia at the end of the Yuan Dynasty. At the end of the Qing Dynasty, Chongqing opened the port and the National Government moved its capital to Chongqing, making Chongqing the political, military, economic and cultural center of modern China, and the origin of the spirit of the Red Rock. At the beginning of New China, Chongqing was the capital of the Southwest Region and a municipality directly under the central government, and was restored as a municipality directly under the central government in 1997. Chongqing is the model of China's mountainous cities, the world's hot springs capital, and the hot pot capital of China. It is the resident of the Chengdu-Chongqing Financial Court, the first city of China-Europe liner, and as of 2022, it has 964 R&D platforms of various types; 70 universities in Chongqing, and strategic projects such as the China (Chongqing) Pilot Free Trade Zone, the Sino-Singapore (Chongqing) Strategic Interconnection Demonstration Project, and the New Western Land and Sea Corridor. In 2023, Chongqing's gross regional product will be 3014.579 billion yuan, an increase of 6.1% over the previous year.