Early history
The Shang Dynasty established Aodu or Bodu in Zhengzhou (see also: History of China). This pre-historical city had been long lost even before the time of the First Emperor of China. Since 1950 archaeological finds in a walled city in Eastern Zhengzhou known have provided evidence of Neolithic Shang Dynasty settlements in the area. Outside this city, in addition to remains of large public buildings, a complex of small settlements has been discovered. The site is generally identified with the Shang capital of Ao. It is preserved in the Shang Dynasty Ruins monument in Guanchen District. The Shang, who continually moved their capital due to frequent natural disasters, left Ao at around 13th century BC. The site, nevertheless, remained occupied; Zhou (post-1050 BC) tombs have also been discovered. Traditionally it is held that in the Western Zhou period (1111–771 BC) it became the fief of a family named Guan. From this derives the name borne by the county (xian) since the late 6th century BC — Guancheng (City of the Guan). The city first became the seat of a prefectural administration in AD 587, when it was named Guanzhou. In 605 it was first called Zhengzhou — a name by which it has been known virtually ever since.
The name Zhengzhou came from the Sui Dynasty (AD 581), even though it was located in Chenggao, another town. The government moved to the contemporary city during the Tang Dynasty. It achieved its greatest importance under the Sui (AD 581–618), Tang (618–907), and early Song (960–1127) dynasties, when it was the terminus of the New Bian Canal, which joined the Yellow River to the northwest. There, at a place called Heyin, a vast granary complex was established to supply the capitals at Luoyang and Chang'an to the west and the frontier armies to the north. In the Song period, however, the transfer of the capital eastward to Kaifeng robbed Zhengzhou of much of its importance. It was a capital during the five dynasties of
