At the end of March, Humu Township was quiet, there was no water flooding the wall of the beam, and there was no continuous war in Taoqiu, but there was a bit of tranquility in the troubled times.

The spring ploughing has ended, and the people who have escaped the catastrophe of the war are squatting in the fields, looking at the green wheat, and showing a satisfied smile. The floods under the city of Daliang, the fierce battle between Wei Wushu and Qin Ruishi, and the survival of the Wei State have nothing to do with the common people at the bottom. If it weren't for the Qin people outside the city, who were dressed up and had too special accents, they wouldn't even know that their hometown had changed banners.

The day after Zhang's banquet for Heifu, several ox carts set off from Zhang's house in Humu Township and slowly drove towards the Qin army's garrison camp. And the escort of these cars was Zhang Cheng's son, forty-year-old Zhang Zhong.

After shouting loudly to explain his intentions, the camp gate slowly opened, and a team of soldiers lined up, seeing their steps and armor and swords, Zhang Zhong remembered the fierce and domineering sword dance yesterday, and couldn't help but feel a little numb.

Fortunately, Heifu didn't let him wait long, and soon walked out with Zhong Ming, and smiled at Zhang Zhong: "I don't know what, I bothered Zhang Zhong to come here." ”

His gaze glanced at the several ox carts behind Zhang Zhong and asked, "...... is this?"

Although Zhang Zhong was twice as old as Heifu, he had to bow to this Qin official:

"You was ordered to settle in the hometown to maintain the stability of the place and prevent the entry of rebellious soldiers and thieves. However, when I heard that there were only more than ten stone of rice grain left in the camp, the husband and the three elders were afraid that there would be insufficient soldiers to eat, so they ordered me to take 150 stone of corn and 30 stone manuscripts from my home and give them to You Yi for use during the garrison......"

"Enough food, then enough soldiers, in this way, it can be calculated that the urgent need of this official can be solved, and I will thank the husband and the three elders in person another day."

Since Zhang Bo finally learned to be respectful under Zhang Ying's admonition, Heifu also reached out not to hit the smiling man, helped Zhang Zhong up, and made a polite gesture.

Heifu didn't lie, the Zhang family did solve a big trouble for him, these more than 50 people eat, wear and chew, at least seventy or eighty stone a month, and the food in the camp is about to bottom.

Because of the war, the price of grain in Wei has skyrocketed, and it has reached a thousand yuan of rice stone in the war zone, even in Yangwu County, where there is no war, because the summer harvest has not yet arrived, even if it is old rice, it has reached a high price of hundreds of dollars of rice stone. Moreover, the currency of Wei and Qin is different, and it is impossible to fill this big hole by relying on the officers themselves, so they can only rely on the local township tyrants.

So Heifu is still sincerely grateful.

However, after he asked Lixian to take the soldiers to move down the grain and forage given by Zhang's family and transport it to the warehouse, Lixian came over and quietly told Heifu: "You, I have roughly calculated, these grain and forage are not at all the amount Zhang Zhong said!" ”

Heifu frowned at first, but then thought that the Zhang family had a big head, so he wouldn't play tricks in this regard, seeing that Zhang Zhong talked decently, his face was quite honest, and he was not the kind of person who picked up his own wool.

The reason for this, he understood after a little thought.

"I almost forgot, the stone of Wei is different from the stone of Qin!"

In today's world, there is still no unity, and weights and measures are still used separately. In terms of volume alone, the Qin State is stone, bucket, and sheng, and the Wei state is Hu, bucket, and sheng. Hu and stone can be universal, but the specific size is different, and it is normal to cause deviations.

In terms of weight units, Qin and Wei are all two, yi, and yi, and there are also differences in specific weights.

This is not a small gap, after all, Shang Ying implemented a new system of weights and measures in the Qin State, which was a reference to the more advanced Wei at that time. However, in the country of Qi located in the East China Sea, the unit of weights and measures is a self-contained system, which is very different from other countries, using beans, districts, kettles, and bells, and it is a mix and match of the quadruple system and the decimal system.

In short, one stone of rice in Wei is slightly less than one stone of rice in Qin.

Heifu didn't have to worry about it, so he had to let the Zhang family make up the rice according to the weights and measures of the Qin State, anyway, looking at the quantity, it was at least enough for them to eat and drink for two months.

What's more, because of the Zhang family disciple mentioned at yesterday's banquet, Heifu now looks at the Zhang brothers, and suddenly feels much more pleasing to the eye.

……

"Zhang Cang......"

Sitting in the camp, chanting this name, Heifu still couldn't believe that Zhang Cang, a great mathematician who lived for more than a hundred years in history and spanned the Warring States, Qin, and Han dynasties, would have an unreliable uncle like Zhang Bo.

But according to the description of the Zhang brothers, whether it is worshipping Xunzi as a teacher or being an official in the Xianyang Imperial History Mansion of the Qin State, it is completely consistent with Zhang Cang's resume, and there is no doubt that he should be himself.

As the apprentice of the great Confucian Xunzi, Zhang Cang's reputation may not be as good as his two senior brothers Li Si and Han Feida. But from the perspective of Heifu, a modern person, Zhang Cang's contribution to Chinese history and culture has surpassed that of the two!

As the Zhang brothers said, Zhang Cang is a book-lover, all-encompassing, and all-encompassing, and he is a genius who knows everything from the past to the present. Otherwise, he would not have just entered Qin, and he would have been requisitioned by the Imperial History Mansion and became the librarian of Great Qin......

Of course, he may also have followed the path of Lis. Although Tingwei Li Si killed Han Fei out of jealousy, he did not show too much hostility towards this little junior brother Zhang Cang, who did not overlap with his attributes.

There are people on top and talent in his belly, so Zhang Cang can read a group of books in the Imperial History Mansion with peace of mind and continue to enrich his knowledge.

Heifu knew that according to the original history, the doctrine of the hundred schools of thought of the Warring States would experience a catastrophe more than ten years later. Qin burned the poetry books, and the history books of the Six Kingdoms were burned together with the words of the hundred schools of thought of the people, leaving only a single book stored in the library of the Imperial History Mansion. And Zhang Cang may be the only one of these managers......

In a few years, the Qin Dynasty also died, and seeing that the books were about to be destroyed, Zhang Cang, who had already taken refuge in Liu Bang, took Xiao He and hurriedly rescued some of the laws and regulations, but not too much.

Subsequently, Xiang Yu's retaliatory fire in Xianyang destroyed the remaining lone historical classics and academic books that were hidden in the Qin Palace, leaving no words.

There was a major rupture in Chinese culture.

At this time, Zhang Cang's years of accumulation in the Imperial History Mansion reflected great value.

The so-called Han Cheng Qin system, some of those rules and regulations, were handed down by rote memorization by this bookworm, and the hundred schools of thought were even more so. China's culture, the achievements of a hundred schools of thought, can be preserved somewhat after the catastrophe at the end of the Qin Dynasty, Zhang Cang has to take great credit.

Moreover, Zhang Cang not only reads a lot, but is also a generalist. He not only learned Confucianism from Xunzi, the world's first academic master and the culmination of a hundred schools of thought, but also learned about the nine streams and ten schools of learning, and was very good at law, music, calendar, astronomy, and geography.

But among Zhang Cang's many specialties, the most famous is mathematics.

The famous "Nine Chapters of Arithmetic" was revised by Zhang Cang!

Heifu knew this person, and it was because of this ancient mathematical treatise that the mathematical problems recorded in it had reached a high level, but they were not divorced from reality, and they were all used by Zhang Cang for the national economy and people's livelihood of the Han family......

It can be said that judging Zhang Cang's achievements from the perspective of Hefu's modern people, he can be called a mathematician or even a scientist.

Craftsmen like Heifu's sister-in-law, who can make instruments according to Heifu's descriptions and master the techniques, are unable to summarize the principles and turn them into scientific knowledge.

In this world, Hefu can find countless craftsmen to make objects in his place.

But in this era, there is only one Zhang Cang.

Therefore, in Heifu's imagination, if he wanted to choose an ancient man and slowly teach him the modern subjects at the middle and high school level in his mind, so that he could spread it and benefit the world. Zhang Cang is the best choice!

So, when the Zhang brothers moved out of Zhang Cang at the banquet that day, and wanted to scare him with a fake tiger, Heifu was not worried but happy!

He not only showed great excitement, but also turned against the customer, and taught Zhang Bo a lesson seriously.

Heifu said that Zhang Cang has a bright future in the future, as an uncle, Zhang Bo should let him enter the office in Xianyang with peace of mind, so the Zhang family also needs to keep to himself, abide by the law, cooperate well with Qin officials, and don't cause trouble for Zhang Cang......

Heifu is not yet able to have direct contact with Zhang Cang, but at least he has touched his hometown and knows where he is an official. In this way, if you have the opportunity to go to Xianyang in the future, it will be convenient to find it, and you can also lie that you have a little friendship with the Zhang family, which will not be abrupt......

Although Zhang Cang has no real power, but after all, he is an official in Xianyang, but this black man is not afraid at all, but he thinks about Zhang Cang in a tone of consideration, and teaches himself a lesson, which is really unreasonable!

As a result, the trump card of the Zhang brothers is gone, but they feel that Heifu, a little official, is a little unfathomable.

Afterwards, Zhang Cheng said to Zhang Bo very suspiciously: "That black man, obviously a Qin man who doesn't even have a clan, why is he so bold? Moreover, his speech and demeanor, the various means used today, say that he is the commander of a thousand people, I believe it! This person will be an extraordinary person in the future. ”

Zhang Cheng knows how to meet people, and he has always been able to know people, so Zhang Bo also believed him. In short, after that feast and temptation, the Zhang family no longer dared to underestimate Heifu and the Qin people.

Heifu showed them the general trend of Wei Bi's death, and also showed the force under his command, although there were only fifty people, they could defeat several times the servants and light heroes. He seems to regard himself as the local spokesman of the Qin army, and any arrogant attitude towards him can be regarded as disobedience to the rule, and any rebellion against him with murderous intent will lead to brutal suppression by the Qin army.

Therefore, even if Zhang didn't like Heifu's garrison, he could only pinch his nose and accept it.

For Heifu, although he won a big victory in this game, Zhang invited the old and virtuous people of the township to show him his connections and the status of the leader in the township. At least before the end of the war, if the Qin army wants Yangwu and the stability of Humu Township, it will be inseparable from the Zhang family.

So Heifu can't do anything to the Zhang family, without the cooperation of the Zhang family, Qin's rule in this township will collapse immediately, and these more than fifty Qin soldiers will not be able to get out of the camp even for half a month.

Besides, for Zhang Cang's sake, as long as the Zhang family is honest, he won't embarrass them.

Everyone is a mature person, and they won't fight for a while, so they ended the game and began to return to the front of the case, put away their clenched fists, and showed a smile at each other.

Receiving food for emergency relief is the best way for the Zhang family to show favor to Heifu.

Since that day, Heifu has had more contacts with Zhang.

According to the system of the Qin State, the husband heard the lawsuit and collected taxes; Wander to forbid thieves; The three elders are in charge of education. Everyone performs their duties, Heifu will not interfere with the local etiquette life, let alone overstep his authority to manage household registration taxes, only Zhang Bo and Zhang Cheng need to send food to him to help him maintain local order, everyone cooperated in a limited way and reached a tacit understanding.

To paraphrase the relationship between the two sides, that is, the local tyrants and shoddy gentry began to collude with foreign imperialist invaders to jointly exploit the broad masses of the people and suppress the passionate patriots.

Time passed slowly, and in April, everything was uneventful, but Heifu never expected that he would be involved in a famous case in history because of a market gossip......