What is the origin of the Great Cold solar term? Why is it called Dahan?
Dahan is the last solar term of the twenty-four solar terms in my country. So what is the origin of Dahan? Why is it called Dahan? Let’s take a look at the following content!What is the origin of the Great Cold solar term?Dahan is the twenty-fourth solar term of the twenty-four solar terms. It occurs around January 20 of the Gregorian calendar every year when the sun reaches 300° of the ecliptic longitude. "Han" means extreme cold, and the weather is very cold. Dahan is the last of the twenty-four solar terms. After the extreme cold, spring is approaching.The Great Cold is the last of the 24 solar terms and the season when winter is about to end. Signs of spring coming back to life can be felt faintly. After the Great Cold, the new year's solar terms will come again. Every time the Great Cold Festival comes, people start to get busy getting rid of the old and bringing in the new, pickling New Year's dishes, and preparing New Year's goods. During the period from Great Cold to Beginning of Spring, there are many important folk customs and festivals, such as Kitchen God worship and New Year's Eve. The biggest festival, the Spring Festival, also falls during this solar term. The Origin of the 24 Solar TermsThe 24 solar terms originated in the Yellow River Basin. As early as the Spring and Autumn Period, the four solar terms of mid-spring, mid-summer, mid-autumn and mid-winter were established. After continuous improvement and perfection, by the Qin and Han dynasties, the 24 solar terms had been fully established. In 104 BC, the Taichu Calendar formulated by Deng Ping and others officially included the 24 solar terms in the calendar and clarified the astronomical positions of the 24 solar terms.The time it takes for the sun to move 15 degrees along the ecliptic longitude from zero degrees is called "a solar term." It runs 360 degrees every year, experiencing 24 solar terms, 2 per month. Among them, the first solar term of each month is the "solar term", namely: Beginning of Spring, Waking of Insects, Qingming, Beginning of Summer, Grain in Ear, Lesser Heat, Beginning of Autumn, White Dew, Cold Dew, Beginning of Winter, Heavy Snow and Lesser Cold; the second solar term of each month is the "middle term", namely: Rain Water, Vernal Equinox, Grain Rain, Grain Full, Summer Solstice, Greater Heat, End of Heat, Autumnal Equinox, Frost Descent, Light Snow, Winter Solstice and Greater Cold. "Solar terms" and "Zhongqi" appear alternately, each lasting 15 days. Now people have collectively referred to "solar terms" and "Zhongqi" as "solar terms". |
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