Zhengzhou is a Chinese city and the provincial capital of Henan Province in east-central China. As a prefecture-level city, it also serves as the political, economic, technological, and educational centre of the province, as well as a major transportation hub for Central China. The city lies on the southern bank of the Yellow River, and is one of the Eight Great Ancient Capitals of China.Zhengzhou has a population of 9,378,000 inhabitants with an urban population of 6,406,000, the city is one of the main built up areas of Henan region. Zhengzhou is now a rapidly growing city.Greater Zhengzhou was named as one of the 13 emerging megacities or megalopolises in China in a July 2012 report by the Economist Intelligence Unit.HistoryThe Shang dynasty established Aodu (隞都) or Bodu (亳都) in Zhengzhou. This prehistorical city had become abandoned as ruins long before the First Emperor of China in BC 260. Since 1950, archaeological finds in a walled city in Eastern Zhengzhou have provided evidence of Neolithic Shang dynasty settlements in the area. Outside this city, remains of large public buildings and a complex of small settlements have been discovered. The site is generally identified with the Shang capital of Ao and 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. Legend suggests that in the Western Zhou period (1111–771 BC) the site became the fief of a family named Guan. From this derives the name borne by the county 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.