Knowledge about which solar term enters the ninth solar term before entering the ninth solar term.

1, which is the day of Jin Jiu's winter solstice solar terms.

2. On the solstice after beginning of winter, "counting nine", commonly known as "crossing nine", means entering the coldest season of the year.

3. The so-called "counting nine" means that from the date of the "winter solstice", nine days is a unit, which is called "nine". After nine "nines", it is exactly 8 1 day, which is called "nine". From "September 19th" to "September 9th", the cold winter turned into a warm spring.

4. From ancient times to the present, both the government and the people attach great importance to the winter solstice. The Shang, Zhou and Qin Dynasties took "Winter Solstice Day" as the beginning of the year. After the Han Dynasty, the winter solstice was established as the "Winter Festival", and the government held a grand congratulations ceremony called "He Dong".

In Song Dynasty, winter solstice was designated as "legal holiday", which was a routine holiday. The nursery rhyme in the Song Dynasty said: "The solstice in winter is as big as the Chinese New Year, and every family eats glutinous rice balls. Teachers don't have holidays and students don't give money. " During the Ming and Qing Dynasties, there was a saying among the people that "fat in winter and thin in years".