According to legend, there was a maid-in-waiting named "Yuanxiao" in the palace of Emperor Wu of the Han Dynasty. She stayed in the palace for many years and missed her parents. One winter, Dong Fangshuo, the minister, was determined to help her, so she lied to Emperor Wu of the Han Dynasty that Vulcan was ordered by the Jade Emperor to set fire to Chang 'an on the 15th day of the first month. The only way to escape the trouble was to let the "Yuanxiao Girl" make many dumplings that Vulcan loved to eat on the 10th and 5th day of the first month, and all the subjects put on lanterns. Emperor Wu of the Han Dynasty allowed it to play, and the "Lantern Festival" girl finally met her family. Since then, the Lantern Festival has been formed.