Chapter 12: The Great History

A considerable part of these details have nothing to do with historiography but with phenology. In ancient times, it was probably exegesis, or naturalist things. But when He Xi and now speak, when the content of historiography is discussed, the prisoners below will naturally listen to him as the content of historiography.

After all, there was no detailed subject classification these days. Naturally, He Xi can say whatever he wants.

When He Xi finished speaking, the sun also set in the west.

He Xi also secretly breathed a sigh of relief. Three days of preparing for class, yourself yourself is not too familiar with things. It is not too easy for He Xi to get it transparent. Fortunately, after more than ten years of studying, He Xi's learning ability is still okay.

After a raid and study, there was no show in front of these people.

That's it for now. He was able to relax for a while.

At this moment, on the blackboard behind He Xi, the chart has already been put away. On the blackboard, there are patterns of one kind or another, and the most striking thing is that countless round nesting dolls are stacked on top of each other. This is the tree ring painted by He Xi, explaining the influence of climate on trees, and the principle that the colder the weather, the slower the tree grows, and the smaller the gap between the tree rings.

He Xi said: "Okay. Here's the question time. ”

Now it's no longer the desert of the morning. Almost instantly, countless arms stretched out from all directions. Even outside the window, there were countless people with outstretched arms.

He Xi had an impression of Lian Zining who asked questions in the morning. Still let Lian Zining answer.

Lian Zining asked the question that almost everyone wanted to ask, and said, "Sir, do you think there is a connection between the temperature and the changes of the imperial court in history?" ”

He Xi did not answer directly, but said: "The population of the Han Dynasty was more than 60 million at its peak, and then the population of the Tang Dynasty was about 50 million, and the population of the Song Dynasty was about 140 million at its peak. Whenever after a war, the white bones are exposed in the wilderness, and there is no one for thousands of miles. In the end, it was densely populated, and then there was a big mess. Land is limited. Population growth is unlimited. Sons and grandchildren give birth to grandchildren, land output is limited, and the population is unlimited, is it that when the land is not enough to support the population, the world will be in chaos? ”

This question stunned everyone.

A lot of people broke out in a cold sweat. Because they think He Xi is too reasonable,

He Xi used chalk to make a big × on the blackboard. Said; "To study history, we must have a big view of history and a view of time and space. Throughout the millennium, looking across the eight directions, grasping the overall situation from time and space, seeing the world, can see a corner, can see the future, can see a moment. First, it is understood that history is a very complex system, and many things are not caused by a single cause. The issues behind every historical event are very complex, and even some people have two historical trends in one thought, but one of these people's thoughts is not something that our descendants can know. ”

"Back to the question just now, is there a relationship between temperature changes and historical changes?"

"Perhaps. I can only answer you in this way, because we who study history must not say anything if we have a piece of evidence. You can't take it for granted. Most of my energy has been focused on this subject. As for the relationship between the two, you will find out for yourselves. ”

"But even if it matters. It's also a very complex linkage, and it's not just climate change. ”

He Xi did not study history. At the moment, I really thought I was a history major, but in fact, there were many discrepancies in what he said.

There is also a discrepancy between the concept of great history at this moment. It is equivalent to the synthesis of the history of later generations. It's just that He Xi doesn't know. He's just a definition of what he gave.

However, here, He Xi is the founder of new historiography, and he can say whatever he wants. He holds the right to define historiography. Naturally, you can say whatever you want. This is also where He Xi's happiness lies.

"Sir, how do you make a thermometer?"

"Sir, do you think that the rich south and the poor north have something to do with the difference in climate?"

"Sir----"

Countless questions were thrown at He Xi, and He Xi only answered four or five. I won't answer. Because He Xi found that if he kept answering, it was estimated that he would not be able to answer tomorrow.

I could only end the question and prepare to leave.

The prisoners of the country did not dare to block He Xi's way, so they could only watch He Xi go out.

"Sir, could you give students a look at that picture?" Or Lian Zining has the courage to ask above.

He Xi didn't care, and asked Wang Qianli to give the picture to Lian Zining, who took it with both hands and said; "Within three days, the students will definitely return to Zhao."

He Xi nodded and said, "Okay." ”

Actually, he didn't care too much about this picture. It's just that he can't show too much, after all, books are very expensive and scarce these days. His picture is also very valuable.

He Xi left.

Lian Zining was immediately surrounded by countless prisoners. Countless people came up to see this picture. And Lian Zining was afraid that this picture would be hurt, so the whole person hugged this picture and said, "Wait." I'll draw it down and let everyone see it, I'll draw it down and let everyone see it. ”

It's just that many prisoners didn't care about Lian Zining's repeated explanations at all, as if they hadn't heard it.

------

An hour later, in the Qianqing Palace, all the words He Xi said during class today were recorded one by one and placed in front of Zhu Yuanzhang.

A thick stack of scripts, Zhu Yuanzhang read it more than once. He watched it repeatedly. A long sigh at the end. He reaffirmed his previous judgment, the knowledge of the future is vast and profound, and even if he gets a lot of literature, and even a magical computer, he will not be able to fully learn it. Then comprehend the penetration.

On the one hand, Zhu Yuanzhang is old after all, his learning ability has declined, and he can no longer study while fighting while fighting as he did when he was young.

On the other hand, the knowledge of the future is self-contained, and the content is so varied that no one person can learn it completely. It is estimated that for a long time in the future, only He Xi will be able to grasp more of the essence.

Although He Xi did not say it directly, Zhu Yuanzhang also saw from the speech that climate change and population expansion must be important reasons for the country's demise.

With such an important content, how could Zhu Yuanzhang not be interested. And He Xi didn't mean to hide Zhu Yuanzhang's intentions, but He Xi arrived in this era for half a year. Zhu Yuanzhang still doesn't know too much. Why?

It's that Zhu Yuanzhang has too many things to learn. Before it was the history of the Ming and Qing dynasties, scientific common sense, and now it is Mao-Zedong thought, Marxism. It is quite difficult for an old man who has been reading the books of the sages to understand these things. Slow progress.

In this way, He Xi's status in Zhu Yuanzhang's heart has improved again.

Zhu Yuanzhang thought for a while and said to Xu Zheng: "Copy a copy of these contents, send it to the prince, and let the prince write down his feelings?" ”

Xu Zheng said: "The slave understands. ”

Zhu Yuanzhang said: "Call He Xi -----," Zhu Yuanzhang looked at the sky, it was already late, and changed his words and said: "Tomorrow morning, let He Xi come to me." ”

Xu Zheng said: "Yes." ”

Zhu Yuanzhang waved his hand and asked Xu Zheng to do it.

Just when Xu Zheng was about to go out, Zhu Yuanzhang suddenly remembered something and said: "Are there thousand-year-old trees around Nanjing?" ”

Xu Zheng immediately turned around, saluted and said, "The slave doesn't know, but I think it should be." ”

Zhu Yuanzhang said: "Cut one and send me the tree stump." ”

The suspicious Zhu Yuanzhang never trusts people easily, although he knows that what He Xi said is not his own. It must be something that has been proven by later generations. It's very authoritative, or consensus. But Zhu Yuanzhang was still skeptical. Cut down a thousand-year-old tree to see what the rings look like.

Pity this ancient tree, which lasted for thousands of years and escaped countless disasters with knives and axes, but fell under Zhu Yuanzhang's thoughts.

Xu Zheng didn't know why Zhu Yuanzhang did this? But he never discounted Zhu Yuanzhang's order, and he immediately said: "The slave will order someone to find it." Then he half-bowed and stood still, wanting to see if Zhu Yuanzhang had any other orders?

Zhu Yuanzhang read the song and said, "You go, there is nothing for you here." ”

Xu Zheng retreated.