Three days later, the construction of Heti in Qinghe Town officially began.

More than 300 households in the town should have dispatched more than 300 people, but unexpectedly, more than 600 people came. Almost all young and middle-aged men were dispatched, more than 60 brand new wheelbarrows, more than 200 pairs of rattan baskets and bamboo baskets, and more than 100 hoes and shovels. Everyone was excitedly lined up in the area on both sides of the Xiaoqing River that had been painted with wood ash.

At the same time, villagers who rushed over from the villages one after another were carrying hoes and tools. Even Xiaohe Village was led by Uncle Ma in the village.

The Xiaoqing River is not wide, and the widest part is only twenty feet. Now it is the winter and spring. The river water is shallow, so the narrowest place is only about ten feet, and you can step over it with just one step with your strength. However, because this river is formed by several canyons and streams, once it rains heavily in summer, mountain torrents come, and the water of Xiaoqing River will surge several feet in an instant. Moreover, because there is no river embankment to block it, the river water can easily flood the farmland on both sides. It is better if the time is short, but if the crops are completely finished, especially in April and May when various crops are blooming and fruiting, the river water is soaked for two or three days, and basically all the harvests will be ruined in the year.

Therefore, the rise in the water in the Xiaoqing River is almost a huge hidden danger in Qinghe Town since ancient times. It makes the villagers more helpless than the wolves and tigers in the Wild Wolf Valley, and the nest of bandits before.

The knowledgeable people in Qinghe Town mentioned this matter almost every year, but they did not succeed in the end because the Lidian was an old antique, and they were not allowed to be repaired by Liu Po ​​and others repeatedly persuading him.

However, today, this unprecedented huge project destined to be recorded in the history of Qinghe Town is about to begin. All the villagers were very excited. In addition to the hundreds of young and strong people participating in the construction of the river embankment, all men, women, and young people in the town were also gathered on the river beach, and more than a thousand pairs of eyes fell on the young boy standing on a small slope by the river.

"Are you ready?" Chen Xu turned to ask Liu Po.

"Don't worry, Lidian, all the parts are sent to each group in sections and sections, all the tool carts are all assigned, the women and girls who boil water and deliver water are arranged, and the health center's rescue is ready!" Liu Po's face turned red and a little black due to excitement.

"That's good!" Chen Xu reached out and took a trumpet made of wood from Niu Dashi and raised it to his mouth.

"All the fellow villagers in Qinghe Town, the construction of Xiaoqinghe River embankment begins now!"

"Oh~hohohohohohohohohohohoho~"

Chen Xu's voice was still chatting and echoing on the river beach. Almost thousands of people on both sides of the Xiaoqing River issued an extremely primitive and exciting cheer and shout at the same time. Hundreds of villagers who participated in the construction of the river bank entered the river bank barefoot, and their hoes and shovels were raised and dropped almost at the same time. Those who were not assigned tools directly used wooden sticks and hands to pry stones, and then carried them to the wheelbarrow and pushed them to the planned river bank, and handed them to the person who had already been waiting there to be specialized in the river bank.

Not only the registered villagers, but also many of the elderly, young, women and children who were standing by the river watching the fun were rushed to the river beach to help pick up stones and soil.

Qinghe Town, which had been quiet all winter, suddenly became hot in an instant, and all kinds of laughter and shouting echoed on the river beach for miles, and the scene was so hot.

"My benefactor, Wuya has never heard of the situation where the people are so enthusiastic in serving labor!" Yu Wuya stood beside Chen Xu with an iron sword in his arms, looking at the crowded crowds on the river beach that lasted for miles.

"Brother Wuya said that we have never seen such a scene before!" Wang San and Wang Wu and four other guards also nodded together, with inexplicable sighs on their faces.

Chen Xu was very satisfied with everything in front of him.

The blooming flowers, tender green wheat seedlings, sprouting willows, tender yellow weeds, and these poor peasants who work hard in rags and passion, although they are poor, they are full of hope. This river bank is hope, the hope that sprouts in spring.

"Yu~~" Several horses came from the direction of Zhi County in Dongtouzhen, and then stopped by the river together. In addition to a few soldiers, Jiangbeiting and Liu Qingshan, who were riding on the horse, also looked at the villagers who built Heti on the river beach in front of them, and each of them showed a look of surprise on their faces.

"Brother Jiang, why are these serving civilians so excited and enthusiastic?" A middle-aged scholar with a slightly round face asked in surprise.

"That's true. I have seen many serving men, all of whom are frowning, but why is it so relaxed and comfortable here? It's strange!" Another scholar who is about the same age as Jiangbeiting and looks handsome and has a jade crown, also looked surprised.

Jiang Beiting knew that Chen Xu was a freak, so he didn't show much surprise. He stroked his beard and pointed at Chen Xu standing on the slope and said, "Chen Lidian is there, and you will know the doubts in your heart."

"Okay, let's go and ask Brother Jiang, the little Li Dian you call a child prodigy!" The round-faced scholar couldn't wait to squeeze his horse's belly, and several horses headed towards Chen Xu.

"My benefactor, it seems that the county magistrate is here!" Listening to the cheers of cheers among the crowd watching the excitement, Yu Wuya looked back and said to Chen Xu.

Chen Xu quickly turned around and saw Jiangbeiting and two scholars of similar grades riding horses across the wheat fields on the river bank. So he quickly sorted out his clothes and took Niu Dashi and Liu Po ​​to greet him.

"Chen Xu has met the county magistrate!" Chen Xu bowed and bowed.

"I have met the county magistrate!" Niu Dashi and Liu Po ​​also quickly saluted together.

"No gifts!" Jiang Beiting waved his hand and got off the horse's back with two scholars, and said with a smile: "I went out for a walk with two friends today. I just heard that your Qinghe Town was preparing to build a river embankment a few days ago, so I went there to visit the whole way. Unexpectedly, I saw this lively and enthusiastic scene, which made me very pleased!"

"My lord is a mistake! This construction of river embankment is a good move for the people, and it is reasonable for the villagers to be enthusiastic. The Xiaoqing River in front of him will flood almost every year. After 10,000 mu of fertile land on both sides are soaked in water, the yield is reduced or even lost, resulting in difficulty in collecting tax grains. The villagers are unable to fill their stomachs. Now, before the spring tide starts, I plan to repair the river embankment on both sides. Once it is completed, my Qinghe Town will no longer be flooded! Therefore, the villagers cooperate enthusiastically, so that the lively scenes that the adults see." Chen Xu bowed respectfully and said.

"Well, building a river embankment is indeed a major measure to benefit the countryside and the people. If it is built well, it will definitely be a great contribution. At that time, I will report the achievements of my nephew to the county magistrate, and at the same time I will also commend the stones on the river embankment. The name of my nephew is enough to make the descendants of Qinghe Town remember the praises!" Jiang Beiting said with a very satisfied smile.

"Come on, my dear nephew, I will introduce you to you. This round-faced person is Zhang Cang. He is now serving as a censor in Xianyang. This time he came to Nanyang for a routine spring inspection, which is my old acquaintance in Xianyang!" Jiang Beiting pointed to the middle-aged scholar with a round face and introduced.

"Zhang Cang?" Chen Xu was stunned for a moment. The name seemed familiar, but there were so many celebrities in the Qin and Han dynasties. He was stunned for several seconds and didn't remember it. But in order not to be rude, he quickly bowed and said, "Chen Xu, the diary of Qinghe Town, has met the Censor Zhang!"

"No gifts are not allowed, I, the censor, can't take care of you, Lidian!" Zhang Cang smiled and looked harmless, and he looked like a very easy-going breed.

"This romantic and elegant person is Feng Zi'an, the vice-chancellor of Nanyang College. He is a fellow disciple of the Confucian wise man Xunzi!" Jiang Beiting pointed to another handsome middle-aged man with a handsome appearance.

When Chen Xunzi’s two students were surprised, Chen Xu quickly bowed again: “Chen Xu has met the owner of the Fengyuan!”

"Haha, on the way here, I heard that the magistrate of Jiang County talked about you, but I didn't expect that you would have a lot of novelty such as threshing machines, curved plows, horizontal rakes, carts, warm couches, etc., were all developed by you. Could it be that Chen Lidian is a disciple of the Mo family?" Feng Zian smiled and returned the favor, but he seemed to have a little false love.

Chen Xu's face turned a little dark. You are from Confucianism. Ask me if I am from the Mohist family, the Confucian and Mohist families are mortal enemies. Confucius was demoted by Mozi as if he was a piece of shit. What did you mean when you met?

But Feng Zi'an was just a deputy director who opened a library to teach apprentices, not even an official. Chen Xu naturally didn't bother to be too polite to him, so he smiled and shook his head and said, "Xu is not a Mo disciple, and those who are so sophisticated in the world are not all disciples of the Mo family, just as Confucian apprentices do not believe in Confucianism!"

Feng Zi'an, Zhang Cang and Jiang Beiting were both stunned at the same time.

"Master Feng Yuan, Xu is not wrong!" Chen Xu asked deliberately.

Feng Zi'an's handsome cheek twitched a few times, and the smile on his face was very stiff. "Chen Lidian was naturally not wrong. Confucius, a Confucian wise man, once said that there was no difference in teachings, and it was not surprising that Confucian disciples had a few rebellious people!"

"Haha, I wonder what if the Lord of the Housekeeper said this by the Left Prime Minister Li Si?" Chen Xu laughed happily.

"Hmph, so what if he knows? Although I, Feng Zi'an, are the same brothers as him, I, disgusted with him!" Feng Zi'an snorted coldly with an ugly face.

Yoho, awesome!

Chen Xu could only give Feng Zi'an a thumbs up and give him a thumbs up. At the same time, he admired Feng Zi'an's love, and even dared to scold Li Si in public. This integrity is pretty good.

"Brother Feng, don't be upset. Today is going out for a walk, don't be in a bad mood!" Jiang Beiting quickly persuaded, and at the same time he glared at Chen Xu helplessly.

Zhang Cang looked at Chen Xu thoughtfully, then looked up at the busy and noisy man on the river bank and said, "Although Chen Lidian is young, he has long wanted to meet him. Because Cang has always been very happy with arithmetic. In July last year, the magistrate of Jiang County asked me to bring me a multiplication table of 99. I was very happy after seeing it. Therefore, after this time, I couldn't wait to find Jiang County Magistrate and asked him to take me to Qinghe Town to discuss arithmetic problems with you! If you can get some inspiration, you can also compile the arithmetic problems that are often used in civil affairs into an arithmetic book, so that my craftsmen and officials of the Qin Dynasty can easily calculate..."

"Nine Chapters of Arithmetic?" Listening to Zhang Cang's words, Chen Xu's mind was like a flash of lightning flashing through him, and he suddenly remembered a man named Zhang Cang in history, who was the first person to compile the mathematics "Nine Chapters of Arithmetic".

"What is Nine Chapters of Arithmetic?" Zhang Cang asked in confusion.

"Ah, haha, Xu just suddenly remembered something. Don't be surprised by Jingshi Zhang!" Chen Xu quickly wanted to skip this topic.

But Zhang Cang seemed very interested. He thought with his beard and nodded and said, "The name of Jiuzhe Arithmetic is very meaningful. Nine is the ultimate number. Zhou Gong has theories and there are nine numbers, and there is also a table of multiplications of nine nines. Well, it is indeed appropriate to name my book Nine Chapter Arithmetic, which is much better than the arithmetic book I thought before!"

I'm going, it's so shameless!

Chen Xu couldn't help but complain. I just exclaimed and took it to the title of the book. However... it seems... it seems that the nine chapters of arithmetic in later generations were compiled by Zhang Cang. It was only made in the Han Dynasty after the collapse of the Qin Dynasty. And if you guessed it well, the middle-aged man with a round face in front of you was the Zhang Cang in history.

Because it would not be so coincidental that two people with the same name and surname appeared in the history of the same period who liked mathematics, and judged by time, it is roughly in line with Zhang Cang's age. Because in history, Zhang Cang lived in more than 100 years, from the Qin Dynasty to the reign of Emperor Jing of Han, he lived in two dynasties one after another, and used time to survive six or seven emperors. It is simply a representative of the model of using mathematics to calculate life. Others live in a daze, but they live clearly.

This also shows a big problem: people who like to think for a long time.

Chen Xu was a little worried about himself, and then turned his head to look at Yu Wuya. He was actually even more worried about this foodie. This is a typical example who doesn't like to use his brain.

"My benefactor, what do you think I'm doing?" Yu Wuya looked like a pair of eyes on the back of his head, and looked back at Chen Xu for no reason, with a lollipop in his mouth.
Chapter completed!