When did the Lantern Festival begin on the fifteenth day of the first month?

Lantern Festival is a folk activity in China, which originated in the Han Dynasty.

On the fifteenth day of the first lunar month, just after the Spring Festival, the traditional festival Lantern Festival in China was ushered in. The first month is the first month of the lunar calendar. The ancients called the night "Xiao", so they called the fifteenth day of the first month the Lantern Festival. The fifteenth day of the first month is the night of the first full moon in a year and the beginning of the Yuan Dynasty. On the night of Spring Festival, people celebrate this festival and the continuation of the Spring Festival. Lantern Festival is also called "Shangyuan Festival".

According to the folk tradition in China, on this bright night, people light thousands of lanterns to celebrate. Going out to enjoy the moon, lighting and setting fires, enjoying lantern riddles, eating Yuanxiao, family reunion and celebrating festivals are all enjoyment.

Lantern Festival is a traditional festival in China, which existed in the Western Han Dynasty more than 2,000 years ago. When Emperor Wendi was in power, he ordered the 15th day of the first month to be the Lantern Festival. During the period of Emperor Wu of the Han Dynasty, the sacrificial activities of "Taiyi God" were scheduled for the 15th day of the first month. Taiyi: the God who rules the universe. When Sima Qian created the taichu calendar Law, he had already identified the Lantern Festival as a major festival.