The formation of the custom of the Lantern Festival has a long process.
（元宵節習俗的形成有壹個較長的過程。）
According to general information and folklore, the fifteenth day of the first lunar month had been valued in the western han dynasty.
（據壹般的資料與民俗傳說，正月十五在西漢已經受到重視。）
In the first lunar month of emperor wudi of the han dynasty, the sacrifice to taiyi was held at the ganquan palace.
（漢武帝正月上辛夜在甘泉宮祭祀“太壹”的活動。）
It is regarded by later generations as the prelude to sacrifice to the god of heaven on the fifteenth day of the first lunar month.
（被後人視作正月十五祭祀天神的先聲。）
However, the fifteenth day of the first month of the Lantern Festival as a folk festival is really after the han and wei dynasties.
（不過，正月十五元宵節真正作為民俗節日是在漢魏之後。）