Zhengding, formerly known by several other names, is a county in southwestern Hebei Province, North China, located approximately 260 km (160 mi) south of Beijing, capital of China. It is under the administration of the prefecture-level city of Shijiazhuang, the capital of the province, and has a population of 594,000. Zhengding has been an important religious center for more than 1,000 years, from…