Study of land tenure system in the Qin and Han Dynasties Study of maritime culture in the Qin and Han dynasties Study of appellation in the Qin and Han dynasties Study of the eunuch system of the Ming Dynasty Study of land taxes in Qin and Han dynasties Study of parting poems in the Six dynasties Study of the household economy in the Tang and Song Dynasties Study of steles theories in the Qing Dynasty Study on the satirical fiction in the Ming and Qing dynasties Study of female literature space in late Ming and early Qing dynasties