The origin of longevity noodles: the custom of eating longevity noodles on birthdays has a long history. This custom originated in the Western Han Dynasty. According to legend, Emperor Wu of the Han Dynasty believed in ghosts and gods, and also believed in physiognomy. One day with all the ministers chat, talking about the length of life, Han Wu Di said: "the book of" said, "people in the middle of the long, the longer the life, if the middle of 1 inch long, you can live to 100 years. "Sitting next to Han Wudi's minister Dongfang Shuo heard it and laughed, the ministers were puzzled,.