Assertion: qin dynasty | /r/HasProperty | 2070–1600 bc
Facets:
Source sentences:
text: Xia dynasty (2070–1600 BC)
text: Ancient historical texts such as the Book of Documents (early chapters, 11th century BC), the Records of the Grand Historian (c. 100 BC) and the Bamboo Annals (296 BC) mention and describe a Xia dynasty (c. 2070–1600 BC) before the Shang, but no writing is known from the period, and Shang writings do not indicate the existence of the Xia.