At that time scholars had already raised the idea that this city wall might be of the Lungshan era, but many people were opposed to this view, and felt that such a conclusion was too bold. It was considered impossible that Chinese culture could have achieved such a level of technology at such an "ancient" era.
當時學者曾提出這片城牆很可能是龍山時期的看法，但許多人卻持反對態度，認為如此推論太過大膽，中國文明不可能在如此「古代」就有這般技術。