Tianjin, also known as Jingu and Jinmen, is a provincial-level administrative region, municipality directly under the Central Government, national central city and megacity of People's Republic of China (PRC), and is the economic center of the Bohai Rim region determined by the State Council. By the end of 20 18, the city had 16 districts with a total area of 1 1966.45 square kilometers. 20/kloc-permanent population at the end of 0/9 15 18300, urban population 1303.
Tianjin is located in the north of China, downstream of Haihe River, and east of Bohai Sea. It is the largest port city in the north of China, a national logistics hub, a core area of international shipping in the north, and the first batch of coastal open cities. It is the main node of the China-Mongolia-Russia Economic Corridor, the strategic fulcrum of the Maritime Silk Road, the intersection of the Belt and Road, and the nearest eastern starting point of the Eurasian Continental Bridge. It is located at the intersection of five tributaries of Haihe River, namely South Canal, Ziya River, Daqing River, Yongding River and North Canal.
Tianjin rose by water transportation since ancient times, and became a land and water terminal for transporting grain from the south to the north after the mid-Tang Dynasty. The rulers set up "Zhigu Village" in Zhigu; Haijin Town, founded in Yuan Dynasty, is a military center and a water transportation center. In the second year of Yongle in the Ming Dynasty (1404), the city was officially built, which is the only city in ancient China with an exact record of the time when it was built. After Tianjin was turned into a trading port in the tenth year of Xianfeng in Qing Dynasty (1860), western powers set up concessions here one after another, and Tianjin became the frontier of the opening of northern China in modern times and the base of China's Westernization Movement. After more than 600 years, Tianjin has created a unique urban landscape that combines Chinese and Western cultures and is compatible with ancient and modern times.