The "Gongcheng De Shouqiu Carved Stone" (referred to as "Shouqiu Carved Stone") discovered in Pingshan County in 1935 illustrates the development and changes of stone inscriptions from the early Warring States period to the unification period of the Qin Dynasty. Not only is the stone made of nature (Shouqiu Carved Stone (a piece of natural river stone) has developed into artificial processing, and its content has also developed from a simple chronicle to a formal means of propaganda by the rulers, and even left as a last word to inform future generations. This fully proves that my country's stone inscriptions have entered the period of development from the embryonic stage of the Shang and Zhou dynasties. Now in the Hebei Provincial Museum
