District (China)
The term district, in the context of China, is used to refer to several unrelated political divisions in both ancient and modern China.
In the modern context, district or sub-city (Chinese: 区), formally city-governed district, city-controlled district, or municipal district (Chinese: 市辖区), are subdivisions of a municipality or a prefecture-level city. The rank of a district derives from the rank of its city. Districts of a municipality are prefecture-level; districts of a sub-provincial city are sub-prefecture-level; and districts of a prefecture-level city are county-level.
It was also formerly used to refer the obsolete County-controlled districts (also known as district public office).
However, if the word district is encountered in the context of ancient Chinese history, then it is a translation for xian, another type of administrative division in China.
Before the 1980s, cities in the People's Republic of China were administrative divisions containing mostly urban, built-up areas, with very little farmland, except for the immediate suburbs in order to ensure a large supply of food or raw materials. As a result, districts were also mostly urban or suburban in nature.