Zhang Shunhong is a research fellow of World History, especially British History, at Institute of Historical Theory, Chinese Academy of History in Chinese Academy of Social Sciences, and published many articles and monographs, including British Views on China: At the Dawn of the 19th Century.
Guo Zilin is a research fellow of World History, especially Ancient Egyptian History, at Chinese Academy of History in Chinese Academy of Social Sciences, and published many articles and monographs, including Despotism of Ptolemaic Dynasty of Ancient Egypt.