Jiaozi first appeared in the Southern and Northern Dynasties. Today, archaeological discoveries can prove that jiaozi cuisine was enjoyed in the Tang Dynasty. 1972, Jiaozi was found in the tomb of Astana in Turpan, Xinjiang. Jiaozi was called "flat food" in Yuan and Ming Dynasties, "cake" in Qing Dynasty and "boiled cake" with jiaozi on New Year's Eve.
Zi, formerly known as Joule, was first invented by Zhang Zhongjing, a medical doctor in China, with a history of 1800 years. Jiaozi has become the symbolic food of the Northern New Year. On the one hand, because of jiaozi's delicious food, in the traditional society where life is not rich, ordinary people seldom eat a meal of jiaozi with white flour and big stuffing on weekdays, so jiaozi is considered as the best food for the New Year.
The more important reason is that jiaozi has cultural symbolic significance, and jiaozi is a symbol of the changes of the times. In the folk concept, the new year and the old year alternate at midnight. When New Year's Eve and the New Year alternate, the whole family eats jiaozi to celebrate the New Year, which means to say goodbye to the old year and welcome the new year. Moreover, because jiaozi is shaped like a silver ingot, there is a pot on the table, which is symbolic of "making a fortune in the New Year, and ingots roll in". Jiaozi is boiled, so it is not "broken" or "rotten", but "earned" and "rose".
In addition, for the sake of luck and happiness, people will put some things in jiaozi, such as red dates, which means having children early or getting rich early; Some put chestnuts, meaning good luck; Some people put coins in, and whoever eats coins indicates who can make a fortune.