Memory of history, how to record the year in ancient China?

Methods of recording the year in ancient China:

I. Stem and Branch Chronology, which is a dating method that has been used in the Chinese calendar since ancient times. Stem and branch is the general name of the heavenly stems and earthly branches. The order of the stem and branch matching exactly sixty for a week, week after week, the cycle of records, which is commonly known as the "stem and branch table".

A, B, C, D, E, F, G, H, H, N, J ten symbols called the heavenly stems; Zi, U, C, D, C, S, N, U, Shen, You, H, Huxu, Hai twelve symbols called the Earth's branches.

Two, the year is the ancient emperors of China used to chronicle the name. With the year number chronicle, from the beginning of Emperor Wu of Han Dynasty. Han Wu Di reigned 54 years, *** with 11 years, but the first five years Jianyuan, Yuan Guang, Yuan Shuo, Yuan hunting, Yuan Ding are added later, he personally set the first year is "Yuan Feng".

After he visited Mount Tai in the summer of 111 BC, 30 years after his reign, he issued an imperial decree naming the next year "Yuanfeng yuannian" (the first year of Yuanfeng). From then on, new emperors were required to establish their own year names. Before the Yuan Dynasty, an emperor usually had more than one reign name. In the Ming and Qing dynasties, an emperor basically used one year, i.e., one year for one generation. The year number chronology is not only a kind of chronology in China, but also affects Korea, Japan and other countries.

Expanded Information

The Stem and Branch Calendar is a calendar that marks the year, month, day, and hour with 60 different sets of Heavenly Stems and Earthly Branches. The 10 Heavenly Stems and 12 Earthly Branches are paired together to form 60 different combinations of Heavenly Stems and Earthly Branches to mark the year, month, day and hour.

The Stem and Branch Calendar consists of four parts: the Stem and Branch Year, the Stem and Branch Month, the Stem and Branch Day, and the Stem and Branch Hour. The calendar divides a year into twelve months, with "Jian" representing the pointing of the top of the handle of the Big Dipper. Ancient astronomy referred to the handle of the Big Dipper as Jian, and the twelve epochs in a year were referred to as the twelve months of the year when the handle of the Big Dipper was rotated.

According to the ancient literature of China, the Emperor's era has invented the stem and branch, this invention has a far-reaching impact, and later used in calendars, mathematics, calculations, naming and other aspects.

The ten stems are: Xiongnu, Senmon, Zuozhao, Qiangmai, Zhuyong, Tuwei, Shangzhang, Chongguang, Xuan Discuss, Zhaoyang. The twelve branches are: Dudun, Chifenruo, Regent Tigre, Shan Xiongnu, Dixu, Dahuangluo, Dunshe, Xieqia, Jutan, Zuoyu, Eumao, and Dabuchi dedication.

In later generations, the Yellow Emperor (some say the Han Dynasty) simplified the name of the stem and branch into a single character, in the "Shiji", "Erya" and so on have a cross-relation of the record, but the "Shiji" and "Erya" version is not the same. The simplified "Ganzhi".

The "Ten Heavenly Stems" are: A, B, C, D, E, F, G, C, N, and K. The "Twelve Earthly Branches" are: A, B, C, D, E, F, G, C, N, and K. "Twelve Earthly Branches" that is, son, ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Huxu, Ohio.

The stem and branch is the collective name of the heavenly stems (A, B, C, D, E, H, G, S, N, D) and the earthly branches (Zi, U, C, D, C, S, W, W, W, S, Y, X, X, H). The calendar mainly consists of four parts: the year of the stem, the month of the stem, the day of the stem, and the hour of the stem.

It is the first of the year with the spring, and the first of the month with the festival. The length of the year is the return year, and one section and one center is a month. Stem and Branch Calendar through the Heavenly Stems and Earthly Branches on a number of stars, the Sun and the relationship between the Earth, the twenty-four seasons and the twelve months to build is the basic content.

Baidu Encyclopedia - Stem and Branch Calendar

Baidu Encyclopedia - Chronology