What does the lamb festival mean on the thirteenth day of the first month?

The 13th day of the first month is the anniversary of Yang Gong's death, which is not appropriate in history. It is said that Yang Jiajiang went to war on the 13th of the first month and lost seven generals. He thought this day was unlucky, and then it was handed down from generation to generation as a souvenir.

Yang Gong's one-day death algorithm is based on the13rd day of the first month, and then two days are cancelled every month, for example, February 1 1 day and March 9 ... An exception suddenly appears in August, starting from the 27th, and two days are retired every month, for example, September 25th and1October 20th.

The 13th day of the first month is one of the "Thirteen Taboos in Yang Gong", and the taboos on this day are as follows:

In the traditional custom of "the 13th day of the first month", it is forbidden to visit relatives, go out, get married or move.

These taboos were particularly emphasized in the 1960s and 1970s. On this day, even on the "national statutory rest day" in the southern mountainous areas, few people go to work in mountainous areas and fields, and few people go out on business trips, fearing that something will happen.