Du Taiqing of Sui Dynasty said in "Five Candles Collection": "The first month is the end of the month, and one day is Yuan Day, which is also a cloud and a cloud." The original meaning of "yuan" is "head" and later extended to "start" Because this day is the first day of the year, the first day of spring and the first day of the first month, it is called "Sanyuan". Because this day is still the old dynasty, the moon dynasty and the Japanese dynasty, it is also called the "three dynasties"; Because it is the first Shuori, it is also called "Yuanshuo".

On the first day of the first month, there are other nicknames such as Shangri-La, Zheng Chao, Sanshuo and Shisan, meaning that the first day of the first month is the beginning of the year, month and day.