Four occupations
The four occupations (simplified Chinese: 士农工商; traditional Chinese: 士農工商; pinyin: Shì nóng gōng shāng), or "four categories of the people" (Chinese: 四民; pinyin: sì mín), was an occupation classification used in ancient China by either Confucian or Legalist scholars as far back as the late Zhou dynasty and is considered a central part of the fengjian social structure (c. 1046–256 BC).