23rd-century BC establishments

Oxus Civilization archaeological culture

ancient Egyptian temple complex

thumb|An ancient Chinese pot similar to those found at the Lajia site and those of the Qijia culture Lajia () is a Bronze Age archaeological site in the upper reaches of the Yellow River, on the border between the Chinese provinces of Gansu and Qinghai. As at other sites of the Qijia culture (c. 2300–1500 BCE), the people of Lajia had an agricultural economy based primarily on millet cultivation and sheep herding. They also kept pigs for use in ritual activities, including making oracle bones, and experimented with a high temperature-fired pottery described as proto-porcelain. The world's olde

writing system from Elam

Taosi () is an archaeological site in Xiangfen County, Linfen, southwestern Shanxi province, northern China. Taosi is considered to be part of the late phase of the Longshan culture in southern Shanxi, also known as the Taosi phase (2300 BC to 1900 BC).