The 24 solar terms are the intangible cultural heritage of mankind. When did they first rise?

The wisdom of the people of the ancient Chinese nation is by no means as simple as we thought. Bian Xiao can't help but guess that if it weren't for the ideological constraints at that time, their level of science and technology would never just stay at that stage. At that time, the underdeveloped astronomy seemed to have been skillfully used, such as sundials and 24 solar terms, which are closely related to life, highly similar to modern science and more practical than modern science. The earliest 24 solar terms were recorded in the Xia Dynasty's Xia Li, and then accurately recorded in the Spring and Autumn Period and the Warring States Period's Shi Gan Jing.

In the simplest terms, the vernal equinox, the summer solstice, the autumnal equinox and the winter solstice correspond to the four different nodes of the earth's orbit around the sun in modern science. From the distant day to the perihelion, from the direct tropic of cancer to the direct tropic of cancer, they are all very consistent with the twenty-four solar terms of the lunar calendar. It is amazing that the ancients can accurately estimate the rhythm of the sun only by the naked eye and the feelings in life.

Among them, Xiaoman and Mangzhong, as the unique farming culture of the Chinese nation, are unique ways to worship the sun. At this time, one is when wheat and other crops are planted. It is at this time that planting is suitable for the upper climate and summer rainfall. Otherwise, sowing in advance may lead to the death of the land because it is too dry, and sowing in late autumn may make the climate cool and the wheat is not mature yet, so the node summarized by farmers is just right.

The remaining 18 solar terms also correspond to people's daily life. Both slight cold and severe cold are coming for the New Year, and this time is also the time when it has the worst cold. Although the ancients didn't have such a thing as a climatologist, they could control the climate like modern people.