Jiaozi is one of the traditional foods in China. In ancient times, it was called "jiaozi", also called flat food or boiled cake. In ancient times, there were only wonton, not jiaozi. Later, wonton was made into a crescent shape and became jiaozi. On New Year's Eve, at 12: 11, we began to eat jiaozi, so this is a year's time, which means that the old and the new alternate, and it's time for a year. In the Tang Dynasty, the habit of eating jiaozi had spread to the remote areas of China.
The custom of eating jiaozi during the Spring Festival was quite popular in Ming and Qing Dynasties. Jiaozi usually wraps it up before 0/2 o'clock on New Year's Eve/KLOC, and eats it at midnight. At this time, it is the beginning of the first day of the first lunar month. Eating jiaozi means "making friends when you are young", and the word "Zi" is homophonic with "jiaozi". Northerners who don't eat jiaozi for 30 nights will feel that there is no atmosphere for the New Year.