Research on the social language life in Ming and Qing dynasties Research on the Booi bannermen in the Qing dynasty Research on Huizhou pawn-brokers in Ming and Qing dynasties Research on the social structure of pre-Qin dynasty Research on Jiangxi guild hall architecture in Ming and Qing dynasties Research on the coast defense of Shandong in the Ming and Qing dynasties Research on engraving model calligraphy of Yuan Ming and Qing dynasties Research on mining industry in Central China during Ming and Qing dynasties Research on the grain transportation law inthe qing dynasty Research on the great wall in past dynasties