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Mao, a first-class Chinese character, pronounced Mo, was first seen in Oracle Bone Inscriptions. Its original meaning is subdivision, which refers to one of the sacrificial methods used in Shang dynasty, and also refers to the tenon hole in wood, which is also the fourth of the twelve branches. It also refers to the "rabbit" in the zodiac, the "wood" in the five elements, and the names of activities such as the roll call when the old yamen started working.

Guimao is one of the main branches, ranking 40th.

The 40th year of a cycle in China's traditional calendar is called "Guimao Year". In the following calendar years, the number of years over 60 is divided by 43, or the number of years is reduced by 3, and the remainder of division by 10 is 0, and the remainder of division by 12 is 4. The years from the first day of the first month of that year to New Year's Eve of the following year were all "mourning years". This year must be the Year of the Rabbit. Like 1963, it is the year of Guimao.

Lunar calendar is a dry calendar, and solar terms are used to guide agricultural production. Branches and branches are not divided into solar terms, regardless of traditional habits or official calendars. Calendars are not commonly used, but calendars are mostly used for numerology. Therefore, it is based on the solar term month, not the new moon, which is different from the Gregorian calendar year based on the lunar year. In fact, the year of "Ganzhi" which has been widely circulated in recent years began in beginning of spring that year. This is a numerology view, not a common folk practice.

Guimao school system, which had a great influence on the old China school system;

This academic system includes a complete system from primary school to university. Vertically, the whole academic system is divided into three sections and six levels: the first stage is primary education, five years in primary school, four years in higher primary school, foster families, which are not included in the formal academic system; The second stage is secondary education, a middle school for 5 years; The third stage is higher education, with three years of college or university preparation, three or four years of branch schools and five years of Confucian schools.

From a horizontal perspective, there are industrial general tutorial schools, primary agriculture, industrial and commercial schools and apprentice schools parallel to higher primary schools; Parallel to middle schools, there are primary normal schools and secondary agricultural, industrial and commercial schools; Parallel with institutions of higher learning, there are excellent normal schools, industrial teachers' workshops and higher agricultural, industrial and commercial schools.

According to this academic system, it takes 20 years or 265,438+0 years for children to enter school at the age of 7, and 24 or 25 years for them to graduate from Tongru College. Their age is 365,438+0 years or 32 years, which is the longest academic system in China so far.