In ancient and feudal times, the word "university" not only refers to "university", one of the four classics of Confucianism, but also refers to institutions that gather in specific places to sort out, study and disseminate knowledge in advanced fields. According to documents, universities, as institutions with higher education functions, can be traced back to Cheng Jun and Shandong during the Five Emperors. Dong Zhongshu said, "When the prestigious schools of the Five Emperors become evenly matched, it will be unbearable to itch. ".Yu Shunshi established Shangdong, meaning" institution of higher learning "; Zheng Xuan: "Shangdong is a university, in the western suburb of Wangcheng. "Later, the Eastern Preface of Xia Dynasty, Zhuan Xu of Shang Dynasty and Biyong of Zhou Dynasty were the highest institutions of learning in the capital at that time.