Why did ancient emperors have corresponding titles? What's the point?

I found that emperors in past dynasties used corresponding year numbers to represent countries, so what does the year number mean? The year number is of great significance to the emperor, and it was established to commemorate the emperor's reign. Therefore, since Qin Shihuang unified the six countries and established the State of Qin, emperors of all dynasties have given themselves titles, and at the same time, titles also have symbols of separatism. The title has existed in China for more than 2000 years, which is of great significance to the feudal society in China.

First, the origin of the title is first to distinguish the current monarch from the previous monarch, and then the current monarch recalculates the number of years in office. For example, when Emperor Wu of the Han Dynasty was in office, the title was added, which was the earliest title in China, so the title was also created by Emperor Wu of the Western Han Dynasty. After the feudal dynasty in China, but now after the Revolution of 1911, the existence of this title has been abolished. After the founding of New China, the Gregorian calendar was adopted. Therefore, the title is of far-reaching significance to the feudal emperors of China.

Second, the role of the year number The first year number in the history of China is called Yuanshou. The reason is that when Emperor Wu of the Han Dynasty went out hunting, he caught a white unicorn, and this unicorn was special, with only one horn. So the minister of the DPRK always thought it was an auspicious animal, so in order to commemorate this animal, he set the year number as Yuanshou. Therefore, many years later, for ancient emperors, there are many implications, such as expressing expectations for a better life in the future, pinning on the emperor's concept of governing the country, or hoping that the country will be rich and strong, the people will be safe, and the country will have a long-term stability. Therefore, the year number can also reflect an emperor's ideal and ambition.

Third, the significance of the year number The year number is a unique product of emperors in China feudal society, used by emperors, so it is of decisive significance to China's historical position and is the spiritual and cultural heritage in China's history. Therefore, many people propose to continue to use the year number to maintain the traditional characteristics of China and enrich the diversity of world years to some extent.