When did the twenty-four solar terms begin? What does each solar term mean?

Twenty-four solar terms began in the Western Han Dynasty. ? Western Han literature "Huainanzi? Astronomical training first appeared? 24 solar terms? The name of. Some people have different views. Some people say that it is difficult to judge when the 24 solar terms began. Through many ancient books, there are shadows of the twenty-four solar terms, which should be said to be the predecessor of the twenty-four solar terms, and it is also the ancients who finally calculated the twenty-four solar terms through the continuous summary and exploration of previous research results.

If you really want to calculate, Chunqiu? Fu divided it into eight sections to cope with the weather? It can be seen from here that observing the sky should be beneficial to agriculture. However, some people object to this statement, thinking that it is only about the nature and is not suitable for the formation of the 24 solar terms.

The twenty-four solar terms are divided into four seasons: spring, summer, autumn and winter.

The solar terms in spring are: beginning of spring, Rain, Sting, Equinox, Qingming and Grain Rain.

The solar terms in summer are: long summer, small full, busy, summer solstice, light summer and great summer.

The solar terms in autumn are: beginning of autumn, Grade Three, Bailu, Equinox, Cold Dew, First Frost,

The solar terms in winter are: beginning of winter, light snow, heavy snow, winter solstice, slight cold and severe cold. ?

The beginning of spring: The beginning of spring revives everything. The beginning of everything means a new year and a new cycle. When it rains, the rainfall begins to increase, which plays a very important role in the growth of crops. Thorn, spring thunder, the best nirvana in life. Represents vitality, and everything begins to go out, full of vitality. Vernal equinox: it mainly means that in the word vernal equinox, day and night begin to be equally divided and enter a state of balance.

In ancient times, farming depended on the sky for food. If you want to farm, you must adapt to the weather. So you began to watch the stars, and gradually formed a knowledge system of the changing laws of seasons, climate and phenology. The twenty-four solar terms are actually a regular system based on observing the movement of celestial bodies. Through this observation, we can accurately find the regular changes in nature, which plays a very important role in farming, and it is also an important part formed through the accumulation of culture and history from generation to generation.