Xia, Shang, Guan, Zheng, and Han, and a prefecture during the eight dynasties of Sui, Tang, Five Dynasties, Song, Jin, Yuan, Ming, and Qing.
In 1903 the Beijing–Hankou railway arrived at Zhengzhou, and in 1909 the first stage of the Longhai Railway gave it an east–west link to Kaifeng and Luoyang; it later was extended eastward to the coast at Lianyungang, Jiangsu Province, and westward to Xi'an (Chang'an), Shaanxi Province, as well as to western Shaanxi. Zhengzhou thus became a major rail junction and a regional center for cotton, grain, peanuts, and other agricultural produce. Early in 1923 a workers' strike began in Zhengzhou and spread along the rail line before it was suppressed; a 14-story double tower in the center of the city commemorates the strike. In 1938, during the war with Japan, the retreating Chinese Nationalist Army blew up the dikes retaining the Yellow River about 32 km northeast of the town, flooding a vast area.
When the Communist government came to power in 1949, Zhengzhou was a commercial and administrative center, but it had virtually no industry. Because it was the center of a densely populated cotton-growing district, it was developed into an industrial city, with industry concentrated on the west side so that the prevailing northeast winds would blow fumes away from the city.
Zhengzhou also has a locomotive and rolling-stock repair plant, a tractor-assembly plant, and a thermal generating station. The city's industrial growth has resulted in a large increase in the population, coming predominantly from industrial workers from the north. A water diversion project and pumping station, built in 1972, has provided irrigation for the surrounding countryside. The city has an agricultural university
