Tianjin, or Tianjin for short, is the economic center of the Bohai Rim region approved by the State Council, which is a provincial administrative region, municipality directly under the central government, National Central City and super city of the people's Republic of China. As of 2018, the city has 16 districts, with a total area of 11916.85 square kilometers, built-up area of 1007.91 square kilometers, permanent population of 15.596 million, urban population of 12.9681 million, and urbanization rate of 83.15%.
Tianjin is located in North China, the northeast of North China Plain, the lower reaches of Haihe River Basin, and the Bohai Sea in the East. It is the junction and entrance of the five tributaries of Haihe River, namely the south canal, Ziya River, Daqing River, Yongding River and the North Canal. It is known as "the lower reaches of the nine rivers" and "the key point of the river and the sea". Tianjin is the main node of China Mongolia Russia economic corridor, the strategic fulcrum of the maritime Silk Road, the junction of the belt and road, the nearest eastern starting point of the Eurasian Continental Bridge, the largest port city in northern China, and the first batch of coastal open cities. Tianjin is an international comprehensive transportation hub clearly defined in the central document.
Tianjin has been a water and land terminal for grain and silk transportation in the South since the middle of Tang Dynasty. In the Jin Dynasty, "Zhigu village" was set up in Zhigu. In the Yuan Dynasty, "Haijin town" was set up as a military important town and grain transportation center. In the second year of Yongle in Ming Dynasty (1404), Tianjin was officially built, which was the only city in ancient China with exact time records. In the tenth year of Xianfeng in Qing Dynasty (1860), Tianjin was opened up as a gateway After the port of Commerce, Western powers set up concessions here one after another. Tianjin became the frontier of opening up in northern China and the base of Westernization Movement in modern China. After more than 600 years, Tianjin has created a unique urban style that combines Chinese and Western culture and is compatible with ancient and modern times
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