The ancient Chinese divided the sun's annual circular movement into 24 parts. Each part was called specific “Solar Term(节气)”. The criteria for the formation of Twenty -four Solar Terms were developed through the observation of changes of seasons, astronomy and other natural (phenomenon) in this region and have been progressively applied nationwide
It (start) from the Beginning of Spring and ends with the Greater Cold, (move) in cycles. The theory spreads from generation to generation and is (traditional) used to direct production and daily routines. It, in particular, remains (importance) to farmers for guiding their practices is used widely by communities and shared by many racial groups in China. Some festivals in China are closely associatedthe solar term. It may also be referenced in children's songs, folk songs and old sayings, These various functions of the solar term have strengthened (it) position as a form of intangible cultural heritage(非物质文化遗产) and have made a great (contribute) to the community's cultural identity.