Millennium is the date of a year.

White dew-the temperature began to drop, the weather turned cold, and there were dew on the vegetation in the morning. The Millennium is around September 7th of the Gregorian calendar every year. In ancient China, the Millennium was divided into three stages: "When Hongyan came; Second, wait for the mysterious bird to return; Three waiting birds cause shame. " It is said that this solar term is the time when migratory birds such as geese and swallows fly south to avoid the cold, and hundreds of birds begin to store dried fruits and grains for the winter. It can be seen that the Millennium is actually a symbol of cold weather. The Millennium is the first solar term in September. Dew is water droplets formed by condensation of water vapor on the ground or near-earth objects due to temperature drop. Therefore, the Millennium actually shows that the weather has turned cold. At this time, people will obviously feel that the hot summer has passed and the cool autumn has arrived. Because the temperature during the day is still more than 30 degrees, but it drops to more than 20 degrees after night, and the temperature difference between them exceeds 10 degrees. Yang Qi reached its peak in the summer solstice, and the extreme situation must be reversed, and Yin Qi also rose at this time. When it comes to the White Dew, the Yin qi gradually increases, and the morning dew gradually thickens and condenses into a layer of white water drops, so it is called the White Dew. As the saying goes: "eighteen pots of summer heat, not exposed to the white dew." These two sentences mean that it is still hot in summer, and you must take a bath with a basin of water every day. After eighteen days, when it's the Millennium, don't go shirtless to avoid catching cold. There is also a saying: "White dew and white fans, the autumn equinox is beautiful." This means that if there is dew before and after the white dew, the late rice will have a good harvest. In addition, in the climate of 24 solar terms in South China, the White Dew has the obvious characteristics of sudden drop in temperature, continuous rain and sudden drop in sunshine, which profoundly reflects the seasonal change from summer to autumn. The average temperature in South China during the perennial white dew period is about 3℃ lower than that in summer, and the average temperature in most areas (5 days) has dropped below 22℃. According to the standard of dividing four seasons by climatology, the time series begins to enter autumn. The autumn rain in South China mostly occurs from the white dew to the first frost, most in the middle and lower reaches of Minjiang River and Qingyi River, and relatively less in the central part of South China. The farmer's proverb "There are too many white dew, and it walks around every day". It is impossible to predict the weather by whether it rains on the day of the white dew, but there will always be a period of continuous rainy weather before and after the white dew festival. Moreover, since then, the rainfall in South China has been characterized by low intensity, frequent rainy days and continuous rainfall. Accordingly, the sunshine in the white dew period in South China is reduced by about half compared with that in summer, and this decreasing trend continues until winter. The above-mentioned climatic characteristics of the white dew season are not conducive to heading and flowering of late rice, but also affect the harvesting and sunning of middle rice, so there is a saying in the agricultural proverb that "the white dew is clear and the rice is as white as silver". Only by fully understanding the climate characteristics of the Millennium and taking corresponding agricultural technical measures can the harm of autumn rain be alleviated or avoided. On the other hand, we should also seize the rain to store water, especially the Bailu in eastern South China is another solar term with more rainfall after Xiaoman and summer solstice, so don't miss the good opportunity. The Millennium solar term is the beginning of the really cool season. Many people blindly emphasize the nourishing function of seafood and meat when recuperating their bodies, ignoring seasonal diseases, which have caused damage to their bodies and families and affected their study and work. I would like to remind you that nasal diseases, asthma and bronchial diseases should be avoided in the Millennium solar term. Especially for those diseases caused by physical allergies, we should be more cautious in diet adjustment. All patients with bronchial asthma caused by allergies should eat less or no fish and shrimp, raw and cold pickled vegetables, spicy, hot and sour, salty and sweet foods, and the most common ones are hairtail, crab, shrimp, chives, yellow flowers and peppers. And light, digestible and vitamin-rich foods are suitable. Modern medical research shows that high sodium diet can increase bronchial reactivity; In many areas, the incidence of asthma is directly proportional to the sales of salt, which shows that asthma patients should not eat too much salt. Among the attributes of food, different diets have different functions of sex, taste, meridian tropism, ebb and flow, and reinforcing and reducing. Different attributes have different functions and adapt to different people. Therefore, everyone should adjust their diet structure at any time with the change of solar terms. Calculation of Millennium Date [y * d+c]-Interpretation of L formula: Y= two digits after the number of years, D=0.2422, L= leap year, 2 1 century C=7.646, and 20th century =8.44. For example, the date of the Millennium in 2088 = [88× 0.2422+7.646]-[88/4] = 28-22 = 6, and September 6th is the Millennium.