The Majiayao culture was a group of neolithic communities who lived primarily in the upper Yellow River region in eastern Gansu, eastern Qinghai and northern Sichuan, China. The culture existed from 3300 to 2000 BC. The Majiayao culture represents the first time that the upper Yellow River region was widely occupied by agricultural communities and it is famous for its painted pottery, which is regarded as a peak of pottery manufacturing at that time. History The archaeological site was first found in 1924 near the village of Majiayao in Lintao County, Gansu by Swedish archaeologist Johan Gunnar Andersson, who considered it part of the Yangshao culture. Following the work of Xia Nai, the founder of modern archaeology in the People's Republic of China, it has since been considered a distinct culture, named after the original site, whereas previously it had been referred to as the "Gansu Yangshao" culture. This culture developed from the middle Yangshao (Miaodigou) phase, through an intermediate Shilingxia phase. The culture is often divided into three phases: Majiayao (3300–2500 BC), Banshan (2500–2300 BC) and Machang (2300–2000 BC). At the end of the 3rd millennium BC, the Qijia culture succeeded the Majiayao culture at sites in three main geographic zones: eastern Gansu, central Gansu, and western Gansu/eastern Qinghai. Location Majiayao phase (3300–2500 BC) sites are mostly found on terraces along: the upper Wei River valley; upper Bailong River valley; middle and lower Tao River and Daxia River valleys; upper Yellow River valley; the Huangshui River; and lower Datong River. Pottery The most distinctive artifacts of the Majiayao culture are the painted pottery. During the Majiayao phase, potters decorated their wares with designs in black pigment featuring sweeping parallel lines and dots. Pottery of the Banshan phase is distinguished by curvilinear designs using both black and red paints. Machang-phase pottery is similar, but often not as carefully finished. Its development is associated with interaction between hunter-gatherers in the Qinghai region and the westward expansion of agricultural Yangshao people. In contrast to plain pottery, the Majiayao painted pottery was produced at large, centralised workshops. The largest Neolithic workshop found in China is at Baidaogouping, Gansu. The manufacture of large amounts of painted pottery means there were professional craftspeople to produce it, which is taken to indicate increasing social complexity. Control over the production process and quality declined by the Banshan phase, potentially due to greater demand for pottery to use