Tzu-yang

The three southern fossils were in various stages of development, with Liu-chiang Man from Kwangsi as the oldest, followed by Tzu-yang Man from Szechwan (cf. 2, 57-58) and Lai-pin Man also from Kwangsi in chronological order.[...]The Tzu-yang Man is represented by a very complete skull which bears some resemblance to Homo erectus on the one hand and Homo sapiens on the other, forming a link between the two widely different stages of Chou-k'ou-tien.[...]Pebble and flake chopping-tools were used and occasionally, as at Tzu-yang, a triangular bone splint was scraped into a point which became blunt and polished through long usage.

Source: wiktionary

He further claimed to be able to trace Mongoloid evolution from Peking Man through a series of Chinese Middle and Upper Pleistocene fossils, including the early sapiens forms of Mongoloid type represented by the Upper Pleistocene skulls from Tzu-yang, Szechwan, and Liu-chiang, Kwangsi⁸⁴.

Source: wiktionary

An extreme example is provided by Tzu-yang county, in Shensi, one of the poorest regions, the annual tax return of which was 341 piculs of grain, less than one-thousandth of Shanghai's.

Source: wiktionary