Introduction of 24 solar terms

Twenty-four solar terms are formulated according to the position change of the sun on the ecliptic (that is, the orbit of the earth around the sun). Twenty-four solar terms can reflect the changes of seasons, guide agricultural activities and affect the food, clothing, housing and transportation of thousands of families. April 20 14, the Ministry of Culture of China officially began to declare the "24 solar terms" to UNESCO's "Intangible Cultural Heritage of Humanity".