Indeed, such a disorderly setting of large and small months even Wei Minsheng himself felt very painful, but there are some historical reasons for this. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Originally, Julius Caesar did determine the size of the month according to odd and even, he stipulated that the year is divided into 12 months, starting from January all odd months are 31 days, and even months are 30 days.

It's just that this is 366 days in a year, which is one day more than a year in the general sense.

So Caesar subtracted one day from the month of February, which was devoted to executions, so that there were only 29 days left in February.

Later, Julius Caesar's son Augustus's birthday was in August, and in order to show his dignity, he could not celebrate his birthday by one day less than his father, so he stipulated that August was also 31 days.

In order to avoid linking the three big months, September and November became small months, with only 30 days; In October and December, it is extended to 31 days.

But then there was another problem, and when the year was counted by one more day, Augustus the Great subtracted one more day from February, so that February would have only 28 days.

But such a willful approach is just too child's play on top of the calendar, right?

Wei Minsheng had no choice but to explain indiscriminately: "In my hometown, February is the month dedicated to the execution of executions, and it is always a little ominous, so I deliberately reduced it by two days, with the intention of killing less and killing carefully."

And we pay attention to the beginning and the end, there is a beginning and an end, the year starts from the big month, and then ends with the big month, which can be regarded as complete, so it is arranged like this.

In fact, this look is still very easy to remember, you might as well clench your left hand into a fist, the back of your hand is facing in the direction, and then we can see that the joints are "concave" and "convex".

Start counting along the raised joints of the index finger in January, counting exactly until July, and then counting from the raised joints of the index finger, starting in August and counting until December.

The month corresponding to the raised position is the big month, and the month corresponding to the concave position is the small month.

This method of counting is mainly determined by the position of the sun, so it is also called the solar calendar.

Since there are the sun, the yin, and the five stars of metal, wood, water, fire, and earth in the sky, we have set a week for seven days, and each day is guarded by a star god.

The sun god is the largest, and the first day of every week is guarded by the sun god, so Sunday is also called Sunday.

Then the star gods on duty from Monday to Saturday are: the god of the moon, the god of Mars, the god of Mercury, the god of Jupiter, the god of Venus, and the god of Saturn.

This allows us to schedule our recent work in a shorter period of time. ”

The picture of the calendar has been displayed on the screen through the projector at this time, and you can intuitively see the number of weeks corresponding to each day.

Looking at this calendar, Zhuge Liang frowned, and said puzzledly: "Your Excellency, there is still a puzzle below, how does this solar calendar arrange the twenty-four solar terms?" If the solar terms are not clear, how can the people determine the time to plow? ”

Wei Minsheng did not have the talent to observe the stars, and there must still be some errors in the lunar calendar corresponding to the solar calendar after nearly two thousand years.

However, if the recalculation is too much work, although there is a conversion formula, it still requires manual participation.

According to Wei Minsheng's lazy character, since the two cannot be taken into account, he simply doesn't care about the lunar calendar, and there is no big problem in cultivating crops according to the changes in climate and temperature.

In Huaxia Villa, due to the existence of greenhouses, there are no strict requirements for the planting time of some vegetables and fruits, and the difference between the lunar calendar and the solar calendar is at most only one month before and after, and they can completely cultivate crops according to the time of the solar calendar.

So Wei Minsheng cheekily said: "There are too many types of crops that we can grow in Huaxia, and they all have different cultivation times, so it is a little inappropriate to judge when to cultivate based on the twenty-four solar terms alone."

Our calendar corresponds to the sun's cycle, so basically the number of days per year doesn't change much.

Since the climate corresponds to the same time of year as the climate is similar, we only need to remember when to plant what, which is easier and clearer for the people to cultivate. ”

Hearing Wei Minsheng's seemingly reasonable explanation, and what he said The solar cycle is an unfamiliar field for Zhuge Liang, so it is not good to say anything.

Lu Xun stood up at this time and said, "Your Excellency, I don't know what the significance of being guarded by the seven star gods seven days a week?" ”

Wei Minsheng said: "This week is set as seven days, mainly related to the moon.

The time from the moon to the full moon is about seven days, the time from the full moon to the semi-moon is about seven days, the time from the half circle to the disappearance is about seven days, and the time from the disappearance to the semi-moon is about seven days.

Therefore, the seven days are also the cycle of the moon's waxing and waning, and every four weeks roughly corresponds to the moon's waxing and waning.

After the week is introduced in the solar calendar, it is equivalent to including the law of the moon, so that everyone can determine the approximate time at night. ”