There are many names for the birthdays of ancient emperors, and there are also many names in history. For example, in the Tang Dynasty, there were Qian Qiu Festival, Tianchang Festival, Tianping Festival, Qingcheng Festival and Jiahui Festival. Post-Jin festival; Jiaqing Festival in the Later Han Dynasty; Tomb-Sweeping Day in the following week; The Spring Festival, Ganming Festival, Shouning Festival, Chengtian Festival, Gan Yuan Festival, Shousheng Festival, Tiantong Festival, Xinglong Festival, Tianning Festival and Ganlong Festival were celebrated in the Song Dynasty. The famous Millennium celebration in Liao Dynasty; The festival of Jin dynasty; Ming sheng festival in yuan dynasty. Almost every emperor's birthday has a different name. The name of the emperor's birthday was only called Wanshou Festival in Ming and Qing Dynasties.

When the ancient emperor ascended the throne, he was called enthronement, also called sitting on the bed, which means the emperor ascended the throne. The new emperor succeeded to the throne, and the year number was changed to yuan to show that everything was born again. Some emperors did not change yuan when they ascended the throne. For example, after Hegong Emperor, there was no change of yuan, but Mao's title of "virtuous" was followed, from which we can see the rise and fall of the country.