What's the order after A, B, C and D?

What is the order of A, B, C and D after the introduction?

Followed by a, b, c and d: gypenoside, heptyl, heptyl and non-decyl.

A, B, C, D, E, self, G, Xin, people and ghosts are called heavenly stems.

Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai are called heavenly stems and earthly branches, which originated from the observation of astronomical phenomena in ancient China. "A, B, C, D, E, Ji, G, Xin, Ren and Gui" are called ten heavenly stems, and "Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai" are called twelve earthly branches.

Heavenly stems and earthly branches constitutes the ancient calendar. Ten branches and twelve branches are matched in turn to form sixty basic units, which cooperate with each other in a fixed order to form the epoch method of branches and branches. Judging from the Oracle Bone Inscriptions unearthed in Yin Ruins, in ancient China, the trunk and branch were mainly used to record the days, as well as the months, years and hours.

Extended data

In Ci Yuan, it is said that "dead branches" are meaningful to trees. Heavenly stems and earthly branches constitutes the traditional calendar year in ancient China. In folklore, people think that the sky is dry, which corresponds to some omens.

The heavenly stems and five elements are divided into yin and yang, specifically:

Jia Mu, Yijiu, Huhuo, Ding Huo, Wuyu, Jitu, Gengjin, Jin Xin, Renshui and Guishui, in which the heptyl group of methyl propargyne is positive and the octyl decyl group of ethyl butyl hexyl is negative.

According to legend, "heavenly stems and earthly branches" was created by a great troublemaker during the Yellow Emperor's reign. According to archaeological findings, shamanism (shamanism here is not shamanism in Qing Dynasty) came into being in the early stage of Chinese civilization, and then with the development of history, nobles who were originally engaged in sacrificial activities United and gradually evolved into Yin-Yang Taoism, which has many uses, and because there are many predictable divination aspects in its application, it is considered that heavenly stems are magical. This is still a mystery to modern people.

In the ancient calendar of China, A, B, C, D, E, Ji, G, Xin, Ren and Gui were called "ten heavenly stems", while Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai were called "twelve earthly branches". The two cooperate with each other in a fixed order, forming the discipline of cadres and branches. Judging from the Oracle Bone Inscriptions unearthed in Yin Ruins, in ancient China, the trunk and branch were mainly used to record the days, as well as the months, years and hours. After the Tang dynasty, the chronology of the main branches was mainly used for fortune telling or divination.