The origin of Tomb-Sweeping Day is 40 words.

Tomb-Sweeping Day originated from the Cold Food Festival and Shangsi Festival in ancient times, which is the Spring Festival. The God of Qingming is the Green God (East Emperor Green God), which is the Spring God in the ancient gods system of China.

As for the name of Tomb-Sweeping Day, it has something to do with the weather and climate during the Spring Festival. "Huainanzi Astronomical Training" said: "Fifteen days after the vernal equinox, the bucket refers to B, and the Qingming wind is coming." The Qing Dynasty's Hundred Questions at the Age explained what "Qingming" meant: "Everything grows clean and bright at this time, so it is called Qingming."

The almanac of the Ming Dynasty said: "On the fifteenth day after the vernal equinox, the bucket refers to Ding, for Ming, when everything is clean and clear, when it is covered, everything is clean and clear, hence the name."

There was no Tomb-Sweeping Day in ancient times. The so-called Tomb-Sweeping Day in modern times originated from the Shangsi Festival and the Cold Food Festival in ancient times.

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