In ancient times, on this day, every family would cook seven kinds of vegetarian dishes into seven treasures and give them to their families, which also meant to exorcise evil spirits. Eating noodles on this day is to wrap noodles around the legs of years and take the meaning of longevity.

It has a history of more than 2000 years since the seventh day of the seventh lunar month. According to legend, when Nu Wa created the world, she first made pigs, horses, cows and other animals, and on the seventh day, she made people. Therefore, this day is the day when human beings were born. At first, this festival was in the Han Dynasty. By the Wei and Jin Dynasties, everyone was concerned. By the time of the Tang Dynasty, people paid more attention to this day, and the emperor would climb to the top for dinner. And if the weather is fine on the seventh day, it is also a good implication for the safe and smooth population.