Does the reign of the emperor take the lunar calendar as the calendar year?

The year and year number of main branches are used at the same time.

The legend of the chronology of cadres and branches comes from the era of the Yellow Emperor. In fact, it sprouted in the early years of the Western Han Dynasty, began with Wang Mang and spread after the Eastern Han Dynasty. Some people think that China used dry branches to record the years before Emperor Wu of the Han Dynasty. However, this is a year in a year, and a year in a year is a real celestial body, so use a year in a year, and the branch represents twelve days (dividing the day around the ecliptic into twelve equal parts). Jupiter 1 1.862 revolves around the sky once a week, so a year-old star passes once every 85 years, which is called "Chaochen" (proposed by Liu Xin). At this time, the chronology of cadres and branches is also used. In Zhuan Xu Calendar, the first year of Tai Chu (before 104) of Emperor Wudi of the Western Han Dynasty was Prince Bingzi, and taichu calendar changed the ugliness by surpassing the old law. At the end of the Han Dynasty, Liu Xin changed the first year of Taishu to Bingzi, and the second year of Taishi (the first 95 years) from Yiyou to Bingxu. It can be seen that the transition between the year of Ganzhi and the year of Taizi in the Western Han Dynasty was somewhat chaotic. By the Eastern Han Dynasty, calendar scholars no longer had to go beyond the traditional method. Therefore, the chronology of Prince Taishigong's two years is the same as that of Ganzhi. In the second year of Emperor Yuanhe of the Han and Yuan Dynasties (AD 85), the court ordered the nationwide implementation of the chronicle of cadres. Since then, the chronology of the main branches has been fixed and has continued to this day without confusion. However, the expression of heavenly stems and earthly branches dating originated in Xia Dynasty, followed by Shang and Zhou Dynasties, and 60 cattle bones were found in the archaeological site of Shang Dynasty in Yin Ruins.

The chronology method of the year number, the year number began to exist from Emperor Wu of the Han Dynasty. Since then, every emperor has to change the throne and mark the year with the year number. For example, The Story of Yueyang Tower, Four Years of Qingchun, Pipa, Ten Years of Yuanhe, You Bao Chan Shan, July of the First Year of Yuanhe, Shi Zhongshan, Seven Years of Yuanfeng, Meihualing, Two Years of Shunzhi, Two Years of Deyou, and South Guide.

The year number is the name used by the ancient emperors of China to record the year. The use of the year number began in Emperor Wu of the Han Dynasty. During the reign of Emperor Wu of the Han Dynasty for 54 years, * * * used a title of 1 1, but the previous five titles of Jianyuan, Yuanguang, Yuanshuo, Yuanshou and Ding Yuan were added later, and the first title he personally decided was "Yuanfeng". 11year BC, that is, 30 years after he ascended the throne, Mount Tai was sealed in summer, and the following year was designated as "the first year of Yuanfeng" by the imperial edict. From then on, as soon as the new emperor ascended the throne, he must determine his title. Before the Yuan Dynasty, an emperor generally had multiple titles. During the Ming and Qing dynasties, an emperor basically used a title. Chronology is not only a kind of chronology in China, but also affects Korea, Japan and other countries.