Lantern Festival in the first lunar month 15.

The first month of the lunar calendar 15 is the Lantern Festival in China, because the first month of the lunar calendar is called January, and in ancient times people called the night the Lantern Festival. Day 15 is the first night to see the full moon. So this day is also called Yuan Xiao Festival in China.

According to the tradition in China, at the beginning of the new year, when a bright full moon is hanging in the sky, there should be thousands of colored lights hanging for people to enjoy. At this time, people will try to solve the puzzles on lanterns, eat Yuanxiao and reunite all the families in a happy atmosphere.

Translation:

The custom of eating Yuanxiao on the fifteenth day of the first month of the Lantern Festival has a long history. Yuanxiao is also called Tangyuan and Zi Yuan. It is said that Yuanxiao symbolizes reunion, and eating Yuanxiao means family happiness and all the best in the New Year.

The custom of Lantern Festival originates from the "ternary theory" of Taoism. The fifteenth day of the first month is Shangyuan Festival, the fifteenth day of July is Zhongyuan Festival, and the fifteenth day of October is Xiayuan Festival. The officials in charge of the upper, middle and lower elements are heaven, earth and man respectively. The celestial officials are happy and the Lantern Festival should be lit. The festivals and customs of Lantern Festival have been extended and expanded with the development of history.

As far as the length of festivals is concerned, it has been three days in the Tang Dynasty and five days in the Song Dynasty. In the Ming Dynasty, lights were lit from the eighth day of August until the seventeenth night of the first month, a total of ten days. Connected with the Spring Festival, it is a city during the day, full of excitement, and brightly lit at night, which is spectacular. Especially the exquisite and colorful lights make it the climax of entertainment activities during the Spring Festival. In the Qing Dynasty, hundreds of plays such as dragon dance, lion dance, roller boating, walking on stilts and yangko were added, but the festival period was shortened to four to five days.