Study of the biographies of empresses and concubines in the Tang dynasty 并列题名：Study of the biographies of empresses and concubines in the Tang dynasty Complementary study on biographies of empresses and imperial concubines in the two book of the Tang Dynasty research on the culture of headwear of empresses and imperial concubines in Qing dynasty 并列题名：Complementary study on biographies of empresses and imperial concubines in the two book of the Tang Dynasty Study on the legalization of ethnic policies in the Qing dynasty Study on the geographical distribution of the talents in the late Qing dynasty Study of studies on Mencius in the Qing dynasty Study on the local gazetteers of villages and towns in Qing dynasty Study on the neologisms of the buddhist and taoist scriptures in eastern Han dynasty