Tianjin used to be an ocean, and the remains of whales, dolphins and other marine animals and a wide variety of shells can still be found underground.
Tianjin began with the opening of the Grand Canal in Sui Dynasty (AD 58 1-6 18). At the intersection of the South Canal and the North Canal and the Sanchahekou of Jingang Bridge, it is known as the "Sanhui Haikou" in history and is the earliest birthplace of Tianjin. After the mid-Tang Dynasty (AD 6 18-907), Tianjin became a land and water terminal for transporting grain from south to north. The Jin Dynasty (A.D.115-1234) set up "Zhigu Village" in Zhizhu, and the Yuan Dynasty (A.D. 1206- 1368) set up "Haijin Town". In the second year of Wenjian in Ming Dynasty (1400), Judy led the army to cross the river to the south of zhi gu and seize power. 1403 changed to Yongle. Tianjin, as a military stronghold, was formally established in the second year of Yongle (1404), followed by the establishment of Tianjin Zuo Wei and the addition of Tianjin Youwei in the following year. In the ninth year of Shunzhi in Qing Dynasty (1652), Sanwei was merged into Tianjinwei, and civil affairs, salt transportation, taxation and military affairs were established. In the third year of Yongzheng (1725), Tianjin Wei was promoted to Tianjin. In the ninth year of Yongzheng (173 1), Tianjin was promoted to Tianjin Prefecture, which governed six counties and one state. From the second year of Yongle in Ming Dynasty (A.D. 1404) to A.D. 20 14, Tianjin was founded in 6 10.
4. 1860 After Tianjin was turned into a trading port, western powers set up concessions in Tianjin one after another, and Tianjin became the frontier of China's northern opening and the base of modern China's "Westernization" movement. Military modernization and the construction of railways, telegrams, telephones, postal services, mining, modern education and justice have all created this country. At that time, Tianjin became the second largest industrial and commercial city in China and the largest financial and commercial center in the north.
5. 1949 After the founding of New China, Tianjin, as a municipality directly under the Central Government, developed its economic construction and social undertakings in an all-round way, further consolidating its position as an important comprehensive industrial base and business center in China. Since the reform and opening up from 65438 to 0978, Tianjin's advantages as a coastal port city have been continuously enhanced, its foreign exchanges have been increasingly extensive, and various undertakings have flourished. During the Eleventh Five-Year Plan period, Tianjin's economic development and comprehensive strength improved the fastest, with an average annual growth of 16. 1%. The leap-forward development of economic construction has brought about a significant improvement in the status of the city. With Binhai New Area being incorporated into the overall national development strategic layout, Tianjin has ushered in a major historical development opportunity, and this pearl of the Bohai Sea will surely be more brilliant.