Qijia culture

The Qijia culture (2200 BC – 1600 BC) was an early Bronze Age culture distributed around the upper Yellow River region of Gansu (centered in Lanzhou) and eastern Qinghai, China. It is regarded as one of the earliest bronze cultures in China. The Qijia Culture is named after the Qijiaping Site in Gansu Province.
Prior to Qijia culture, in the same area there existed Majiayao culture that was also familiar with metalwork. At the end of the third millennium B.C., Qijia culture succeeded Majiayao culture at sites in three main geographic zones: Eastern Gansu, Middle Gansu, and Western Gansu/Eastern Qinghai.