Length of dating patterns in china
Chinese historians living in later periods were accustomed to the notion of one dynasty succeeding another, but the actual political situation in early China is known to have been much more complicated.
Hence, as some scholars of China suggest, the Xia and the Shang can possibly refer to political entities that existed concurrently, just as the early Zhou is known to have existed at the same time as the Shang.
Cultural and political influences from other parts of Asia and the Western world, carried by successive waves of immigration, cultural assimilation, expansion, and foreign contact, form the basis of the modern culture of China.
Sanxingdui located in what is now Sichuan province is believed to be the site of a major ancient city, of a previously unknown Bronze Age culture (between 20 BC).
The site was first discovered in 1929 and then re-discovered in 1986.
Excavation of a Peiligang culture site in Xinzheng county, Henan, found a community that flourished in 5,500 to 4,900 BC, with evidence of agriculture, constructed buildings, pottery, and burial of the dead.
In late Neolithic times, the Yellow River valley began to establish itself as a center of Yangshao culture (5000 BC to 3000 BC), and the first villages were founded; the most archaeologically significant of these was found at Banpo, Xi'an.) site in northeast China.