The first prehistoric dynasty is said to be Xia, from about the twenty-first to the sixteenth century B.C. Xia-dynasty was founded by the Si-clan, who were descendants of the clan's foundation father, Yu. Because of the lack of written sources, historians have still not gained a correct idea of how the people lived at that time. According to the later tradition, Yu spent thirteen years to dig out channels and maintain dikes. When emperor Shun died, the officials disagreed with the imperial decision of letting Shun's son inherit the throne. They wanted Yu instead, who after his death was followed by his son. It was Yu who founded the first imperial dynasty in China.
Until scientific excavations were made at early bronze-age sites at Anyang, Henan Province, in 1928, it was difficult to separate myth from reality in regard to the Xia. But since then, and especially in the 1960s and 1970s, archaeologists have uncovered urban sites, bronze implements, and tombs that point to the existence of Xia civilization in the same locations cited in ancient Chinese historical texts. At minimum, the Xia period marked an evolutionary stage between the late neolithic cultures and the typical Chinese urban civilization of the Shang dynasty.
Xia was conquered by Tang, and a new era had begun, the Shang-dynasty was founded.
Created by Yang Lu http://polaris.gseis.ucla.edu/yanglu/ECC_HISTORY_XIA%20DYNASTY.htm Stunning Capital of Xia Dynasty Unearthed
Chinese archaeologists recently found a large-scale building foundation in Erlitou Ruins of Yanshi, central China's Henan Province, which belongs to the later period of Xia Dynasty. The discovery, the first of its kind in China, again excited the archaeological field after the heated discussion on the division of Xia and Shang dynasties .
"The site causes great concern because it was founded at the key moment when the Xia Dynasty (c. 2100 BC - c. 1600 BC) was replaced by the Shang Dynasty (c. 1600 BC -