The historical origin of the 29th day of the twelfth lunar month.

Originated from the activities of offering sacrifices to gods and ancestors in the beginning and end of Yin and Shang Dynasties.

The 29th day of the twelfth lunar month is also called Little New Year's Eve. New Year's Eve refers to the night on the last day of the twelfth lunar month, which is connected with the Spring Festival (the first day of the first month). The word "except" in "New Year's Eve" is "go. Yi. "Alternating" means that New Year's Eve means "the month is poor and the old year is exhausted". People must get rid of the old department and the old year, and next year means getting a new year. This is the last night of the Lunar New Year. Therefore, the activities in this period are centered on eliminating the old and welcoming the new, eliminating disasters and praying for blessings. During the Zhou and Qin Dynasties, an exorcism ceremony was held in the palace at the end of each year. Drums were used to exorcise epidemic ghosts, which was called exorcism. Later, the day before New Year's Eve was called New Year's Eve, that is, New Year's Eve. New Year's Eve is New Year's Eve, which is New Year's Eve.

Ancestor worship has a long history in China. Seeing death as life is not only an important symbol of filial piety, but also a virtue of respecting the elderly. Therefore, every festival, we should pay homage to our ancestors, which is not only a comfort to our ancestors, but also a gratitude and yearning for them. The Spring Festival is a big festival, and the ceremony of paying homage to one's ancestors is particularly grand and important. When sweeping graves, most areas invite ancestors in the early morning of the 29th, and a few areas invite ancestors from the afternoon of New Year's Eve to dusk.