(1) years
In ancient China, it was originally based on the year when the king ascended the throne, such as the first year of Zhou Xuanwang (827 BC). Liu Che, Emperor Wu of the Han Dynasty, began to use the year number, which was called the first year of Jianyuan (140 BC), followed by two years of Jianyuan and three years of Jianyuan. And it is a new era in the new year. There are more than 800 appellations used in history. Many ancient medical books are dated in this way, such as the Song Dynasty. Liu Yun's "New Book for Children" is called "Shaoxing Twenty Years in September". Shaoxing is the title of Zhao Gou, the emperor of the Southern Song Dynasty. The advantage of this method is that the chronology is clear and the specific year can be directly pointed out.
(2) chronology of main branches and branches
Chronology of cadres and branches is one of the most basic ways of chronology in ancient China. Can you find the earliest record in Huai Nan Zi? Astronomical training, but this method was not popular in the Western Han Dynasty. Since the 30th year of Jianwu of Guangwu Emperor in the Eastern Han Dynasty (AD 54), official support has been officially used in chronology. Chronology of branches and branches is widely used in ancient Chinese medicine books. Such as sunny? Cochin's Notes on Treatise on Febrile Diseases? The preface is entitled "It's early summer". According to Cochin's life time, it can be found that "its self-sufficiency" is A.D. 1729. Of course, it is more common to combine the emperor's year number with the dry branch of that year, such as Ming? Chen Shigong's authentic surgery? The preface is entitled "Autumn in Wanli Dingsi, Hope in July", Jin? Duan pointed, "elbow backup first aid? The preface is entitled "To Autumn". , all use the year number and stem branch. There are also years, such as Tang? Bing Wang's Huang Di Nei Jing Su Wen Zhu? The preface is entitled "When it was the first year of Emperor Taizong, Yuan? Wei Yilin, "Is World Medicine Effective? The preface is entitled Ding Chou, three years old, looking forward to July. The advantage of combining the two methods is that it is not easy to be confused.
(3) years of stars
During the Warring States period, astronomical astrologers had the so-called chronology of stars according to the astronomical phenomena. The star refers to the year-old star (that is, "Jupiter"), and the year-old refers to Tai Sui (a false year-old star invented by ancient astronomical astrologers, also known as the year-old yin and the lunar yin). So there are chronology and chronology. Song? Xia Song's "Tongren acupoint map"? The preface is titled "Autumn, August and Shen Bing's Analysis of Wood at the Age of Four", and "Analysis of Wood" refers to the years when stars are used. Kim. The title of "Zhai Yi Yin Yue" in Zhang Congzheng's Family Affairs of the Scholars is "The year is dark in the sun and the moon", and "Wasabi" means to use the traditional calendar year.
(4) Year of the Chinese Zodiac
The story of the zodiac can be traced back to the Eastern Han Dynasty and has never been recorded before. Zodiac can be used to calculate a person's age and year of birth, and the zodiac chronology has also been used in history. For example, in the Yuan Dynasty, it was recorded that "the year of the emperor was too definite, and the year of the rat was the year of Jiazi, that is, A.D. 1324".