Tomb-Sweeping Day comes from 250 words.

Tomb-Sweeping Day is one of the twenty-four solar terms in the lunar calendar, which is between mid-spring and late spring, that is, from winter to the future 108 days. The traditional Tomb-Sweeping Day of the Han nationality in China began in the Zhou Dynasty and has a history of more than 2,500 years.

"Almanac": "On the fifteenth day after the vernal equinox, the bucket refers to Ding, which is used for Qingming, when everything is clean and bright, and when it is covered, everything is clean and bright, hence the name." As soon as Qingming comes, the temperature rises, which is a good time for spring ploughing and sowing, so there is a saying that "before and after Qingming, we plant melons and beans".

Tomb-Sweeping Day is a festival to worship ancestors, and the traditional activity is to sweep graves. On May 20th, 2006, it was approved by the State Council to be included in the first batch of national intangible cultural heritage list. It is said that the origin of Tomb-Sweeping Day began with the supplement of "basic sacrifices" by ancient emperors. Later, people followed suit, and it became a fixed custom of the Chinese nation to worship ancestors and sweep graves on this day.

The name "Tomb-Sweeping Day" also comes from "Tomb-Sweeping Day" in the twenty-four solar terms of the China lunar calendar. 108 The day after beginning of winter is Qi's Tomb-Sweeping Day. Tomb-Sweeping Day gas * * * has 15 days. As it is Tomb-Sweeping Day, the time is after the vernal equinox. At this time, winter has gone, spring is full, the weather is sunny, the fields are bright and clean, and the vitality of nature is everywhere.

It is an appropriate word to call this period "Qingming". One revolution of the earth is 360 degrees of the yellow meridian, and when the earth reaches zero degrees of the yellow meridian, it is designated as the vernal equinox, and then there is a solar term every time it runs 15 degrees, and there are 24 solar terms in * * *. Therefore, the dates of solar terms in the solar calendar are fixed, and there will be two-day differences in leap years.

Qingming gets its name not only because everything grows cleanly at this time, but also because the sun in this period is also a fresh sun, and the sun flowing between heaven and earth in this period is also a fresh sun.