Tomb-Sweeping Day ate cold food for the first time to commemorate who introduced Tomb-Sweeping Day.

1, in memory of meson push. During the Spring and Autumn Period, people from the State of Jin (now Jiexiu City, Shanxi Province) were deeply missed by the world because of their feats of "cutting shares to serve the monarch" and "living in seclusion". He was buried in Mianshan, Jiexiu after his death. Feeling deeply guilty, Zhong Er, Jin Wengong, changed Mianshan Mountain to Jieshan Mountain and built a temple to offer sacrifices, which resulted in the "Cold Food Festival" (the day before Tomb-Sweeping Day).

Tomb-Sweeping Day is an ancient festival of the Chinese nation. It is not only a solemn festival to sweep graves and worship ancestors, but also a happy festival for people to get close to nature, go for an outing and enjoy the fun of spring. Douzhi B (or solar calendar reaches 15) is Tomb-Sweeping Day gas, and the node time is around April 5 of Gregorian calendar. At this time, the vitality is booming, the yin is declining, everything is "going to the old and welcoming the new", and the earth presents a scene full of spring, which is a good time to go for a walk in the spring and sweep the graves. Tomb-Sweeping Day, who worships his ancestors, is very long. There are two statements: 8 days before 10 and 10 days before 10. These nearly 20 days belong to Tomb-Sweeping Day who worships his ancestors.