2. Go out to pay New Year's greetings after eating, from near to far, from noon until after burning the lamp. According to this, Tanglao Pill is similar to jiaozi, and it is boiled and steamed. The word slot appeared in food in Song Dynasty. Jiaozi was called "flat food" in Yuan Dynasty, which probably came from Mongolian.
3. jiaozi in the Ming Dynasty, as Zhengzitong said, called dumpling bait, vermicelli, water jiaozi and steamed noodle dumplings. In addition, there are water snacks and other names. In the Qing Dynasty, the Beijing flag bearer also called jiaozi "boiled cake". Eating jiaozi on New Year's Day flourished in the north of Ming and Qing Dynasties.