It was late at night and a little cold outside. The people of the Qingque tribe, who would have gone to bed long ago in normal days, were very excited tonight and did not want to sleep.

Including the older Huo Yi, Huo Er and Wu, as well as those little children who have already grown up.

The severe lack of spiritual life in their daily lives makes them extremely fascinated by the stories told by the Son of God.

Even Qingque's former wisest man, Wu, was fascinated by what he heard.

At the same time, he was extremely surprised and wondered how the Son of God knew these things.

After thinking for a while, of course there was no result, and one could only attribute it to the omnipotent God.

Han Cheng himself was not sleepy. In this world without mobile phones, computers and the like, he had plenty of time to sleep every day.

Tietou Heiwa and others can still do some exercise at night to vent their excessive energy and find some fun, but he, as a single dog... is really pitiful and heartbreaking...

Seeing that these people were all very interested, Han Cheng thought for a while and then told the original version of "The Cowherd and the Weaver Girl" from beginning to end.

Although it was the second time they listened to it, everyone still enjoyed it very much.

"Son of God, what is the year?"

It was Shitou who asked the question. He always liked to think, and he was the successor of the next witch. He usually had more contact with Han Cheng than usual. Because of his status and the deer milk, he felt less distant from Han Cheng than others. (I can't think of the right words to describe this complicated feeling, helpless)

Han Cheng smiled slightly. He deliberately made sure to meet him once a year on July 7th. He emphasized the tone and stayed for a while longer. Finally, Shi Tou started asking questions.

He had thought about calendar matters before, but he had never found a suitable opportunity, and he was busy with other things, so he put it aside for the time being.

Tonight I happened to talk about the story of the Cowherd and the Weaver Girl. These things are contained in the story, and with the mutual confirmation, it is easier for them to understand these concepts that they have never been exposed to.

So after thinking for a while, Han Cheng decided to use this as a breakthrough point and guide the people of the Qingque tribe to instill the concepts of time such as year, month, and day, as well as the corresponding calendar.

It is really uncomfortable to not have a specific concept of time.

It is still better now, we can live without a calendar, but with the gradual development and growth of agriculture, a relatively accurate calendar becomes particularly important.

Agricultural planting is a big deal. We can’t just rely on blind guessing when to sow, right?

Han Cheng said: "From the melting of ice and snow to the blooming of flowers, to the shady trees and scorching sun, to the withering of leaves and the falling of snow, and then to the melting of ice and snow, this long period of time is called a year."

After hearing Han Cheng's words, everyone began to think.

The first one to show a look of sudden realization was Wu. He had experienced a lot and was a smart man, so he accepted it faster than the others.

The others also gradually understood the meaning of "nian".

After all, they had seen and experienced what Han Cheng said, but they had never thought about it in this aspect before. Now that they heard Han Cheng talk about it, combined with their own knowledge and experience, it was not difficult for them to understand and accept this concept.

"I see!"

Shi Tou suddenly shouted in surprise, with a glow on his face.

“Nian is just a name, just like my name is Shitou.

Year is the name of the long period of time from when the ice and snow melt and the flowers bloom to when the ice and snow melt and the flowers bloom again!"

As he said this, he looked at Han Cheng with some excitement and anticipation.

A bright moon rose at some point, and the cold moonlight shone into this unique courtyard, quietly enveloping the group of people who did not go to sleep at night.

Han Cheng smiled, stretched out both hands and gave the stone two thumbs up.

After receiving the affirmation from the Son of God, Stone seemed particularly happy.

Those who did not understand the meaning of "year" soon understood it after hearing Shi Tou connect it with the name they were already familiar with and accustomed to.

Han Cheng took advantage of the excitement and said, "Everything should have a name..."

Then he explained the four concepts of spring, summer, autumn and winter to everyone one by one.

With the previous "year" as a foundation, it was not difficult for them to understand the four seasons.

It’s just that we heard too many new things at once tonight, and many people couldn’t remember all their names at once.

This is not a big problem. As long as they understand the concept, they will naturally remember the name after some time.

Of course, these people do not include witches and stones who often use their brains.

The two of them memorized the year, the four seasons and their names firmly.

Not only that, after receiving the praise, Shitou's mind became more flexible and he spoke again, asking what "July 7th" was.

Then Han Cheng explained that a year is divided into twelve months, with spring, summer, autumn and winter each lasting three months.

Compared to the simple name-memorizing exercises before, these questions about numbers seemed much more difficult to understand. Many people did not understand the complex connections among them at first and found them extremely profound.

The two big eyes of the stone flickered, twinkling with the stars in the sky.

This child is the best "Sinicized" in the entire Qingque tribe, and also the most "educated". He can count from one to a thousand without confusion.

Shitou blinked for a while, and a look of joy appeared on his face again. His gapped teeth looked very white under the moonlight.

"Son of God, is the sun below the moon?"

After figuring out the year and month, Shitou remembered the meeting on the Magpie Bridge on July 7th. He seemed to understand the relationship between the two and blinked and asked Han Cheng a question.

Han Cheng now finally understood why the strict math teachers in later generations always had a smile on their faces when explaining math questions to the students who always got first place in the exams.

It is really a pleasure to teach students who can understand things quickly.

He is far from the kind of guy who "makes his teacher mad to death and his mother-in-law happy to death".

Han Cheng couldn't help but give Shi Tou a thumbs up again.

"The sun is below the moon, and each month has at least 28 days..."

"From the rising of the sun to the rising of the next sun is a day... The light is the day, the black is the night, and now is the night..."

Han Cheng started teaching mode in high spirits.

"Son of God, why is there a difference in the length of each month?"

Many people around had circles in their eyes, but Shi Tou was becoming more and more energetic. He not only remembered everything Han Cheng had said before, but also raised his own questions.

Han Cheng looked at the stone with a smile, pointed at the moon hanging in the sky like a gem and said, "It can solve your doubts."

Everyone looked up at the bright half moon in the sky, their minds confused, not knowing if there was anything else hidden in this thing that they had already become accustomed to.

"What's changed about this moon? Compared to the past few days."

Han Cheng watched from the side for a while, and seeing Shitou looking at the bright moon in the sky with a puzzled look, he reminded him.

"A few days ago, it was big and round, like... like egg yolk beaten in a bowl..."

Shitou scratched his head, not understanding why the big, round moon was now less than half left. It looked as if something had taken a big bite out of it.

"You should draw the moon every night. When you draw enough moons, you will understand why the length of the moon is different..."

Han Cheng seemed a little mysterious when he spoke.

Of course he was unfathomable, for he had only a vague knowledge of the calendar.

Although he dealt with dates every day in his later life and knew some fragmentary knowledge such as there were 365 days in a year, a leap month every four years, February 29th in a leap year, and February 28th in a common year, but he really did not have the ability to come up with a Gregorian calendar based on these knowledge.

Compared with the complicated Gregorian calendar, the lunar calendar based on the "moon" is much easier to use. After all, the changes of the moon are significant and can be seen everywhere, which is much more direct than the Gregorian calendar.

Moreover, compared with the Gregorian calendar, the lunar calendar is more suitable for agricultural production.

'Spring rain brings spring and clear days, summer is full of grain and summer heat. Autumn is cold and frost falls, winter is snowy and slightly cold.'

He still remembers very clearly the song about the twenty-four solar terms that he learned in elementary school. Once Shitou observes the moon carefully enough and the elementary lunar calendar appears, he will insert these solar terms one by one according to the characteristics of the current climate. Then this calendar will be completely sufficient to guide agricultural production.

However, the calendar was a delicate matter. Although he knew the difference between "big advance and small advance", he did not know which month it belonged to. This required a long period of observation and record keeping.

Of course, he couldn't do everything by himself, the Son of God. Wouldn't that be too much work? So the task fell to the amazing Stone...

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