Is the winter solstice the end or the beginning of winter (beginning of spring or the winter solstice is the first of the 24 solar terms)

Cultural Traceability: Is beginning of spring or the Winter Solstice the first of the 24 solar terms? Recently, some scholars questioned the sorting method of the 24 solar terms, saying that the sorting method with beginning of spring as the head and the great cold as the tail is wrong, and the winter solstice should be the head and the heavy snow as the tail. According to Huainanzi Astronomical Training, the first festival of the 24 solar terms is the winter solstice. There are two ways to divide the four seasons in history: the first is astronomical division, that is, summer is the longest day and the highest sun, winter is the shortest day and the lowest sun, and the transitional season between winter and summer is spring and autumn. The second is the ancient division method, that is, based on the position of the sun on the ecliptic, that is, the four seasons classification used since ancient times began in the beginning of spring and ended in Grain Rain; Summer begins in long summer and ends in summer; Autumn begins in beginning of autumn and ends with the first frost; Winter begins in early winter and ends in severe cold. Yan Songtao, director of the Dengfeng Cultural Center, said: "The astronomical division method puts the winter solstice at the top of the 24 solar terms, which has two drawbacks. One is to confuse the four seasons of a year, winter and spring, spring and summer, summer and autumn, autumn and winter, so that the four seasons are unknown; Second, it is inconsistent with living habits. After the solstice in winter, there is a slight cold and a great cold. It's getting colder and colder. Not long after the Lunar New Year, the weather in spring has not appeared for a long time, making people feel the beginning of the new year. " The ancients summed up the order of the twenty-four solar terms, which is more suitable for the cycle of the four seasons and production and life, that is, beginning of spring was ranked as the first solar term of the twenty-four solar terms, which is what we call the ancient division method.