What does "Poqun" mean in Gregorian terminology?

Break-up Day: The 6th of each month is the break-up day, which is Jiayin, Gengyin, Renchen, Chen Wu, Gengshen and Jimao respectively. In ancient times, it could not be used when buying and selling livestock.

Knowledge Link: heavenly stems and earthly branches is short for main branch.

Party A, Party B, Party C, Party D, Party E, Party B, Party G, Party A, Party B, Party B, Party B, Party B and Party B are collectively referred to as "Ten Days Work";

Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai are collectively called the Twelve Earthly Branches.

Heavenly stems and earthly branches constitutes the ancient calendar year. In folklore, people think that the sky is dry, which corresponds to some omens. Ten branches and twelve branches are matched in turn, forming sixty basic units and forming a set of sub-disciplines. Judging from the Oracle Bone Inscriptions unearthed in Yin Ruins, the main branches and branches were mainly used in China folk to record dates, divination and cooperation, and later in the fields of geomantic omen and astrology.

Used in geomantic omen, astrology and numerology: in the theory of yin-yang and five elements, the branches are divided into yin and yang according to their order, with odd numbers belonging to yang and even numbers belonging to yin. The heavenly stems of A, C, E, G and N, and the earthly branches of Zi, Yin, Chen, Wu, Shen and Xu are Yang numbers; The heavenly stems of B, D, Ji, Xin and Gui, and the earthly branches of Ugly, Mao, Si, Wei, You and Hai are all negative. On this basis, according to the theory of mutual restriction, the harmony, rise and fall, conflict and its birth and death of personnel are calculated.

Symbols such as heavenly stems and earthly branches are endowed with rich and mysterious cultural connotations, which are important materials for understanding the thinking habits and lifestyles of ancient China people.