Among the 24 festivals, apart from Tomb-Sweeping Day, which one is both a festival and a solar term?

Only Tomb-Sweeping Day is both a solar term and a festival, and it is the most important sacrificial festival in a year.

As a festival, Tomb-Sweeping Day is different from pure solar terms. Solar terms are symbols of phenological changes and seasonal order in China, while festivals contain certain customs and activities, which have certain commemorative significance. Tomb-Sweeping Day is a traditional festival in China, and it is also the most important festival to worship ancestors and sweep graves.

(A) Tomb-Sweeping Day as a holiday.

1. Another name of Tomb-Sweeping Day: Tomb-Sweeping Day, also known as Tomb Sweeping Festival, Ghost Festival and Ghost Festival, is called Sanming Festival together with the Mid-Autumn Festival on July 15 and the Xiayuan Festival on 10/5, which is related to offering sacrifices to ghosts and gods. 2. Tomb-Sweeping Day is also called an outing festival. According to the solar calendar, between April 4th and 6th every year, it is the season of beautiful spring and lush vegetation, and it is also a good time for people to go for a spring outing (called an outing in ancient times), so the ancients had the custom of going for an outing in Qingming and carrying out a series of sports activities. Tomb-Sweeping Day, also known as March Festival in ancient times, has a history of more than 2,000 years.

(2) Qingming as a solar term depends on how the 24 solar terms are determined.

Twenty-four solar terms objectively reflect the changes of temperature, rainfall and phenology throughout the year, so ancient working people used it to arrange agricultural activities.

Solar terms reflecting the changes of the four seasons? Solar terms reflecting temperature changes

Reflect weather phenomena, solar terms? Solar terms reflecting phenological phenomena

"Huainanzi Astronomical Training" says: "Fifteen days after the vernal equinox, the bucket refers to B, and the Qingming wind is coming." According to the centenarian question, "everything grows clean and bright at this time." So it is called Qingming. " As soon as Qingming arrives, the temperature rises and the rainfall increases, which is a good time for spring ploughing and planting. Therefore, there is an agricultural proverb that "before and after Qingming, point melons and plant beans" and "planting trees is not as good as Qingming". It can be seen that this solar term is closely related to agricultural production.