With the prosperity of population, the scale of villages is also expanding. Hunting an animal seems to be too crowded in the whole village to distribute. So the village is divided into several groups, and the prey is distributed within the groups.
A city is a combination of city and city. The "city" is mainly for defense, and it is an area surrounded by city walls. "Guan Zi Du Di" said that "the inside is the city and the outside is the key link". "City" refers to the place where transactions are conducted, and "Japan and China are cities". Both of them are the most primitive urban forms, and strictly speaking, they are not real cities. As a city, a region must have qualitative standardization.
Extended data:
Cities are the main components of human civilization, and cities also develop with human civilization and progress. In the farming era, human beings began to settle down; With the development of industry and commerce, cities have sprung up and urban civilization has begun to spread.
In fact, in the farming era, cities appeared, but their functions were military defense and holding sacrificial ceremonies. They have no production function, just a consumption center. At that time, the city was very small, because the surrounding countryside provided little surplus grain. Each city and the countryside it controls form a small unit, which is relatively closed and self-sufficient.
Cities are the product of social division of labor and the development of productive forces. "City" refers to a defensive military point surrounded by high walls to guard the traffic rush. Cities in slave society are mainly administrative, military, religious and handicraft centers. Cities in feudal society were not only commodity markets and trade centers, but also began to develop into political, economic and cultural centers.
With large-scale industrial production, mega-modern cities like Shanghai, Guangzhou and Tianjin have emerged. The "market" appeared very early, initially as a fixed place for transactions.
During the Qin and Han Dynasties, in Kyoto, counties, villages and even big counties, almost all cities were established by the government in designated areas, managed by the government, and strictly separated from the houses or houses where residents lived. For example, Dongcheng and Xicheng in the northwest corner of Chang 'an in Han Dynasty. Compared with this kind of "city", the "city" as a first-level administrative division appeared very late.
Baidu encyclopedia-city