Arrange the spring equinox in Grain Rain, beginning of spring, beginning of winter, Changchun and beginning of autumn in chronological order.

The vernal equinox of Grain Rain, beginning of spring, beginning of winter, long summer and beginning of autumn is in chronological order: beginning of spring, vernal equinox, Grain Rain, long summer, Xiaoshu, Liqiu, Lidong and Dahan. Twenty-four solar terms were divided by the wise people in ancient China according to the position of the sun on the ecliptic through careful observation of nature and life. The interval between two adjacent solar terms is 15 degrees, and every 15 degrees is a solar term. It runs 360 degrees every year and * * * experiences 24 solar terms.

As a supplementary calendar in ancient China, the 24 solar terms play an extremely important role in the traditional farming culture of China. Among the 24 solar terms, there are both phenological changes between cold and summer, as well as changes in temperature and rainfall. Through it, the ancients can intuitively and clearly understand the changing law of seasonal climate in a year, so as to master the farming season and arrange farming activities reasonably. It not only plays a guiding role in agricultural production, but also affects the food, clothing, housing and transportation of ancient people, and even cultural concepts.

In ancient China, through careful observation of nature and life, in order to facilitate memory, people compiled 24 solar term song: Spring rains startle spring and clear valley days, and summer is full and summer is summer. Autumn dew, autumn frost, little snow in winter and cold in winter. This is a rhyme formulated in ancient China to express seasonal changes and guide farming, and it is the crystallization of long-term experience and wisdom of working people in ancient China.