In China, before the Qin Dynasty (221 BC), both "Di Ju" (emperor's residence) and "Min She" (people's houses) were called "Gong Shi". Starting from the Qin and Han Dynasties (around 200 AD), "Gong Shi" specifically referred to the emperor's residence, while "Di Zhai" referred to the residences of the nobility. During the Han Dynasty, the residences of marquises and high-ranking officials with incomes of more than 10,000 households and facing the main road were called "Di", while those with incomes of less than 10,000 households and located within the neighborhood were called "She". In modern times, all residential buildings other than palaces and official offices are collectively referred to as civilian houses.