198 1 obtained the master's degree in history from the history department of Henan university in July.
In July 2005, he received a doctorate in history from the History Department of Wuhan University.
1987 65438+February-1989 June, giving lectures at West Wyoming College, USA.
19941October-19951kloc-0/October, giving lectures and studying at the School of History, University of London.
From June 2002 to June 2002, he gave lectures at West Wyoming College.