The development history of eating glutinous rice balls from winter solstice.

Development history: Eating glutinous rice balls was established in Ming and Qing Dynasties. On the solstice of winter, it is necessary to "make dumplings" or "make dumplings". These are also officially recorded in historical materials. The history says that "on the winter solstice, powdered glutinous rice is a pill, which is called' glutinous rice balls'". After jiaozi is wrapped up, it is necessary to offer sacrifices to the gods and ancestors, and then the whole family will eat around. This is called "adding years". Therefore, it is very old to eat glutinous rice balls on the solstice in winter.

Winter solstice is one of the "24 solar terms". "Twenty-four solar terms" and "December construction" are the basic contents of the calendar, which were concluded in ancient times (or ancient times). According to ancient records, Emperor Tiandi began to determine his age in the name of cadres and branches. "Twenty-four solar terms" is a special festival in the calendar, indicating the season, phenology, climate change and the establishment of "December construction".

The ancient "Twenty-four solar terms" were determined by the direction of the top of the Beidou bucket handle. One-year-old is divided into "Twelve Chens" in the official calendar (built in December). "Building" represents the direction of the top of Beidou bucket handle, and bucket handle turns to "Twelve Chens" in turn.