On May 18, the "Discovery of the Country - Ningxia Pengyang Yaohe Plateau Western Zhou City Site Archaeological Achievements Exhibition" jointly held by Ningxia Guyuan Museum and Ningxia Institute of Cultural Relics and Archaeology was officially launched. This exhibition is the first comprehensive presentation of the archaeological excavation results of the western Zhou city site of the Yao River Plateau.

Through the interpretation of the unearthed oracle bones, the country of the city site is "Obtained State", which is a Western Zhou princely state that is not recorded in historical records.