Chingming is a traditional Chinese festival and one of the most important sacrificial festivals for sweeping tombs and offering sacrifices to ancestors.

The Qingming Festival, also known as the Treading Green Festival, is a traditional Chinese festival and one of the most important sacrificial festivals, a day for sweeping tombs and paying homage to ancestors, at the turn of mid-spring and late spring. The traditional Qingming Festival of the Chinese people began around the Zhou Dynasty, more than 2,500 years ago.

The name of the Qingming Festival is related to the characteristics of the weather at this time, according to the Western Han Dynasty's "Huainanzi - Tianwenxun", "fifteen days after the vernal equinox, the bucket refers to the B, then the wind of the Qingming wind"; "Qingming wind" that is, the wind of the refreshingly clear. The "Hundred Questions on the Time of the Year" says, "Everything grows at this time, all clean and clear. Therefore, it is called Qingming." ? Almanac: "fifteen days after the vernal equinox, the bucket refers to Ding, for the Qingming, when everything is clean and clear, cover when the gas is clear and bright, everything is obvious, so the name." Qingming, the temperature rises, the earth presents the image of spring and landscape, this time of year, everything "spit out the old and the new".

Expanded:

The Qingming Festival is one of China's most important "eight festivals of the year", generally around April 5 on the Gregorian calendar, the festival period is very long, there are 10 days before the 8th and 10 days before the 10th after two kinds of statements, which is nearly 20 days within the Qingming Festival. Qingming Festival originally refers to the spring equinox after fifteen days, in 1935 the Republic of China government explicitly set April 5 as a national holiday Qingming Festival, also called the National Tomb Sweeping Festival. The Qingming Festival is known as one of the four major traditional Chinese festivals, along with the Dragon Boat Festival, Spring Festival and Mid-Autumn Festival.

Reference Baidu Encyclopedia: ? Qingming Festival (a traditional festival of the Chinese nation)