The stone implements unearthed along with Hetao Man are very small in size. In spite of some similarities, they are markedly different from those found at Shuidonggou in Lingwu County in the Ningxia Hui Autonomous Region. Therefore, the stone implements of these two sites should not be classified together into a “Hetao Culture” (Ordos Culture).
Our hardest day now lay ahead. The road made a big detour to the south via Lingwu, crossing the Yellow River by the only bridge for many miles before turning north again for Yinchuan, the capital of the Ningxia Hui Autonomous Region.
Yongning county is only 12.9 percent Hui, a relatively small minority in contrast to neighboring Lingwu county in the southeast, which is 47 percent Hui, and southern Jingyuan county, which is 97 percent Hui (the highest concentration of Hui in one county in China, see Map 2).
2018 March 21, Wee Kek Koon, “What happened to China’s early Christians and why did the Nestorian doctrine die out?”, in South China Morning Post[4], →ISSN, →OCLC, archived from the original on 24 March 2018, Religion in China[5]:
For the next two centuries, Nestorian Christianity, known as Jing Jiao (“Resplendent Religion”) in Chinese, spread within the empire, with churches in cities as far apart as Lingwu (in present-day Ningxia), Chengdu and Guangzhou.
