The Erlitou culture was an early Bronze Age urban society and archaeological culture that existed in the Yellow River valley from approximately 1900 to 1500 BC. (A 2007 study of radiocarbon dating has proposed a narrower date range of 1750 to 1530 BC.) The culture was named after the site discovered at Erlitou in Yanshi, Henan. The culture was widely spread throughout Henan and Shanxi and later appeared in Shaanxi and Hubei. Chinese archaeologists generally identify the Erlitou culture as the site of the Xia dynasty, but there is no firm evidence, such as writing, to substantiate such a linkage.
The Erlitou culture may have evolved from the matrix of Longshan culture. Originally centered around Henan and Shanxi Province, the culture spread to Shaanxi and Hubei Province. After the rise of the Erligang culture, the site at Erlitou diminished in size but remained inhabited.
Discovered in 1959 by Xu Xusheng, Erlitou is the largest site associated with the culture, with palace buildings and bronze smelting workshops. Erlitou monopolized the production of ritual bronze vessels, including the earliest recovered dings. The city is on the Yi River, a tributary of the Luo River, which flows into the Yellow River. The city was 2.4 km by 1.9 km; however, because of flood damage only 3 km2 (1.2 sq mi) are left.
The site is divided into four phases.
Urbanization began in Phase II, expanding to 300 ha (740 acres) with a population around 11,000. A palace area of 12 ha (30 acres) was demarcated by four roads. It contained the 150x50 m Palace 3, composed of three courtyards along a 150-meter axis, and Palace 5. A bronze foundry was established to the south of the palatial complex and was controlled by the elite.
The city reached its peak in Phase III, and may have had a population of around 24,000. The palatial complex was surrounded by a two-meter-thick rammed-earth wall, and Palaces 1, 7, 8, 9 were built. Palace 1, the largest, had an area of 9,600 m2 (103,000 sq ft). Palaces 3 and 5 were abandoned and replaced by Palace 2, measuring 4,200 m2 (45,000 sq ft), and Palace 4.
In Phase IV, the population decreased to around 20,000, but building continued. Palace 6 was built as an extension of Palace 2, and Palaces 10 and 11 were built. Phase IV overlaps with the Lower phase of the Erligang culture (1600–1450 BC). Around 1600 BC, a walled city was built at Yanshi, about 6 km (3.7 mi) northeast of Erlitou.
Production of bronzes and other elite goods ceased at the end of Phase IV, at the same time as the Erligang city of Zhengzhou was established 85 km (53 mi) to the east. There is no evidence of destruction by fire or war, but, during the Upper Erligang phase (1450–1300 BC), all the palaces were abandoned, and Erlitou was reduced to a village of 30 ha (74 acres).
A major goal of archaeology in China has been the search for the capitals of the Xia and Shang dynasties described in traditional accounts as inhabiting the Yellow River valley. These originally oral traditions were recorded much later in histories such as the Bamboo Annals (c. 300 BC) and the Records of the Grand Historian (1st century BC), and their historicity, particularly regarding the Xia, is an area of debate for the Doubting Antiquity School of Chinese history. The discovery of writing in the form of oracle bones at Yinxu in Anyang definitively established the site as the last capital of the Shang, but such evidence is unavailable for earlier sites.
When Xu Xusheng first discovered Erlitou, he suggested that it was Bo, the first capital of the Shang under King Tang in the traditional account. Since the late 1970s, speculation among Chinese archaeologists has focused on its relationship to the Xia. The traditional account of the overthrow of the Xia by the Shang has been identified with the ends of each of the four phases of the site by different authors. The Xia–Shang–Zhou Chronology Project identified all four phases of Erlitou as Xia, and the construction of the Yanshi walled city as the founding of the Shang. Other scholars, particularly outside China, point to the lack of any firm evidence for such an identification, and argue that the historiographical focus of Chinese archaeology is unduly limiting.
Archaeological evidence of a large outburst flood that destroyed the Lajia site on the upper reaches of the Yellow River has been dated to about 1920 BC. This date is shortly before the rise of the Erlitou culture in the middle Yellow River valley and the Yueshi culture in Shandong, following the decline of the Longshan culture in the North China Plain. The authors suggest that this flood may have been the basis for the later myth, and contributed to the transition of cultures. They further argue that the timing is further evidence for the identification of the Xia with the Erlitou culture. However, no evidence of contemporaneous widespread flooding in the North China Plain has yet been found.
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