The Spring Equinox Short Story The Legendary Story of Spring Equinox

1. 4,000 years ago, Xizhong was dispatched by Emperor Yao to Wendeng Jieshi Town, Yangli Village generation, after a lot of research and analysis, according to the day and night phase leveling, the bird star at dusk in the south of the celestial phenomenon, to determine the time of the equinoxes, for the determination of the four seasons and the eventual formation of the twenty-four seasons laid the foundation. It is not a legend that Xizhong went to Yanggu Mountain. "Shangshu - Yao Code" records that "Xizhong was ordered to live in the quality of the mountain, which is called Yanggu".

2. In fact, the equinox was born in the Yellow River basin, one of the twenty-four solar terms, and we can see that "rain" and "hibernation" were inserted in the third quarter between the first spring and the spring equinox. These two names describe the meteorological or biological characteristics of the first half of the spring season.

3. It's going to start raining, and the little creatures that have been hiding underground for the winter are going to start waking up when they hear the call of the sun. Inserted between the vernal equinox and the beginning of summer are "Qingming" and "Guyu".

4, from the "Qingming Festival rain" we can know the Qingming Festival weather conditions. From the literal meaning of "valley rain", we can know that this is the season when crops need rain to grow. Between the summer and the summer solstice, insert "Xiaoman" and "Mangseo".

5, the 24 solar terms are defined by the sun in the sky through the great circle of 24 equal angles, not by the year 24 equal time to define, so the time interval is not equal, according to the approximate number of days, some approximate 15 days, some approximate 16 days.

6. So how to divide the months of the year in order to make both concise, but also accurate enough to show the 24 seasons, so that they are arranged in the simplest possible way, so that it is easy to memorize and master, which is an important task in the design of the calendar.