Prof. Hong Xu is the researcher of archaeological institute of the Chinese Academy of Social Sciences. He is the director of Xiashangzhou Research Laboratory of the archaeological institute in the Chinese Academy of Social Sciences and the team leader of the archaeological team in Erlitou site. During his Ph.D phase, His Ph.D supervisor is the famous Chinese archaeologist Mr.Xu Pingfang（徐苹芳）, and he has visited many countries and regions to learn. As a researcher, His main research direction includes the archaeology of Xia, Shang and Zhou Dynasty, the archaeology of Ancient City in China, and he concerns about the formation of Chinese civilization and early country on archaeological studies.His most important work are An Archaeological Study of the Cities in the Pre - Qin Period, The Earliest China, Dynamic Interpretation of Early Cities in Ancient China, and so on.

• Introduction.- I. The time after the Wei and Jin dynasties – City wall and grid-pattern.- II. The capital cities of the Qin and Han dynasties and their environs – The domineering empires.- III. Times of Unrest – The city of the Eastern Zhou dynasty.- IV. Three Generations of Capitals.- Conclusion: The Great Central Axis.

Prof. Hong Xu is the researcher of archaeological institute of the Chinese Academy of Social Sciences. He is the director of Xiashangzhou Research Laboratory of the archaeological institute in the Chinese Academy of Social Sciences and the team leader of the archaeological team in Erlitou site. During his Ph.D phase, His Ph.D supervisor is the famous Chinese archaeologist Mr.Xu Pingfang（徐苹芳）, and he has visited many countries and regions to learn. As a researcher, His main research direction includes the archaeology of Xia, Shang and Zhou Dynasty, the archaeology of Ancient City in China, and he concerns about the formation of Chinese civilization and early country on archaeological studies.His most important work are An Archaeological Study of the Cities in the Pre - Qin Period, The Earliest China, Dynamic Interpretation of Early Cities in Ancient China, and so on.

• Introduction.- I. The time after the Wei and Jin dynasties – City wall and grid-pattern.- II. The capital cities of the Qin and Han dynasties and their environs – The domineering empires.- III. Times of Unrest – The city of the Eastern Zhou dynasty.- IV. Three Generations of Capitals.- Conclusion: The Great Central Axis.

Prof. Hong Xu is the researcher of archaeological institute of the Chinese Academy of Social Sciences. He is the director of Xiashangzhou Research Laboratory of the archaeological institute in the Chinese Academy of Social Sciences and the team leader of the archaeological team in Erlitou site. During his Ph.D phase, His Ph.D supervisor is the famous Chinese archaeologist Mr.Xu Pingfang（徐苹芳）, and he has visited many countries and regions to learn. As a researcher, His main research direction includes the archaeology of Xia, Shang and Zhou Dynasty, the archaeology of Ancient City in China, and he concerns about the formation of Chinese civilization and early country on archaeological studies.His most important work are An Archaeological Study of the Cities in the Pre - Qin Period, The Earliest China, Dynamic Interpretation of Early Cities in Ancient China, and so on.

• Introduction.- I. The time after the Wei and Jin dynasties – City wall and grid-pattern.- II. The capital cities of the Qin and Han dynasties and their environs – The domineering empires.- III. Times of Unrest – The city of the Eastern Zhou dynasty.- IV. Three Generations of Capitals.- Conclusion: The Great Central Axis.