Zhao Danmu escorted Zhao Heng out of the carriage, and walked towards the Huaxia Academy not far away, accompanied by several entourages.

From today onwards, Zhao Heng will enter the Huaxia Academy to study as an ordinary student, and the gimmick of the prince of Zhao Guo entering the Huaxia Academy will definitely be able to boost the prestige and importance of the Huaxia Academy among all the people in the world.

All in all, this is a matter that can be regarded as a mutually beneficial thing for both the Zhao royal family and the Huaxia Academy.

After Zhao Heng left, Zhao Dan did not immediately let the car drive back to Miyagi, but continued to go north and entered Handan Guocheng.

Guocheng is very lively at the moment, and countless people are bustling, completely reproducing the awesome that Yan Ying blew in front of the King of Chu.

Just based on the prosperous scene in front of us, we can already confirm a conclusion with great certainty - Handan has indeed become the number one city in the world today.

Zhao Dan did not pose as a king today, but sat in a carriage, which was equivalent to a private visit to Weifu, so it did not attract too many people's attention.

Zhao Dan's eyes looked left and right, and soon found that there were many people on both sides of the road who were sweating and digging ditches.

This is from Zhao Dan's instructions, and the "Handan Sewage Canal Project" was officially launched this year.

It is said to be a ditch, but in fact it is just a drainage ditch dug in front of every house.

But don't underestimate these drainage ditches, with these draining ditches and ditches, coupled with regular maintenance, the stinking problem that has been plaguing Handan should be alleviated a lot.

In fact, Zhao Dan recently discovered a very interesting thing in the recital submitted by the inspector, that is, there are other people who are also actively helping Zhao Dan solve the problem of excrement.

Who?

Merchant.

In the past two or three years, a new profession has begun to emerge in Handan City, the dung picker.

Every day, these scavengers would pull a rickshaw to every house in Handan to ask for dung.

The residents of Handan City are undoubtedly very welcome to these acts of dung pickers, who often do not take much time to leave with a cart full of dung.

Where to?

The scavengers were taken to a manor a few miles outside the city of Handanguo.

According to the report of the guard, the owner of this manor is none other than Lü Buwei.

A smart man who used to be the top businessman in this world.

Obviously, even if Lü Buwei is not in the Zhao Kingdom at the moment, there are still people with keen eyes in the Lu family.

What do you want so much for? Of course, it is used to make manure.

Under the vigorous promotion of Zhao officials, farmers near Handan City have gradually accepted the idea that manure can increase yields, and have taken the initiative to apply manure to farming.

But the problem is that the peasants in these years do not have dozens of acres of land, but even hundreds of acres of land.

In addition, after the advent of the quyuan plow, the amount of manure required for intensive farming has become higher, and it is certainly not enough to rely on one's own people and livestock to produce manure.

So the contradiction between the supply and demand of manure arises.

When there is a demand, businessmen naturally appear.

Zhao is not Qin, Qin is a severe crackdown on merchants, and although merchants are not very looked down upon in Zhao, at least it is absolutely no problem to do business.

Therefore, when the farmers near Handan City had a demand for manure, the Lu family immediately seized the opportunity and began to hire a large number of dung diggers, transport the manure out of the city, make it into manure in the manor, and then sell it to the farmers near Handan City.

There are hundreds of thousands of people in Handan City, and the amount of feces produced in a day is astronomical.

Even if some of this manure is collected, it is a very objective manure yield.

According to the information submitted by the Inspector Wei, "the Lu family has been selling manure for more than two years, and the scale is expanding day by day, and it is roughly estimated that the income of one year is no less than the profit from selling salt and iron." ”

Salt and iron, that's a super lucrative industry.

If you are a person, you have to eat salt, needless to say, the Qi State of Qi, the first tyrant of Qi Huan in the Spring and Autumn Period, began to make a fortune on salt.

Needless to say, iron is a must-have for weapons, farm tools, and so on.

Salt and iron are both strategic materials.

In the era of Emperor Wu of the Han Dynasty, salt and iron were directly accepted as official camps and continued to be continued, which shows how important the kings of later generations attached to salt and iron.

The sale of manure can be compared to the benefits of salt and iron? It's scary.

What Zhao Dan didn't know was that in fact, if the development of manure continued, it would even give birth to an industry.

The industry will be made up of manure diggers at the bottom and manure factory owners at the top, and will produce a huge amount of wealth while solving the problem of manure removal for the government.

Yes, a huge amount of wealth that surprises everyone.

In the late Qing Dynasty and the Republic of China, Yu Deshun, a Beijing manure merchant known as the "No. 1 manure valve in Tianzi", owned 1,500 acres of fertile land, more than 100 properties in Beijing, and also had a large amount of deposits in at least 20 foreign banks.

Yu Deshun was definitely an out-and-out super tyrant in that era, and all these eye-catching riches were brought to Yu Deshun by those stinking and discolored feces.

Just as Zhao Dan was pondering, the carriage he was riding in had already driven through the civilian area and came to the workshop area of Handan Guocheng.

This is where the craftsmen of the Zhao Kingdom lived, lived and worked.

Billowing black smoke billowed over the workshop area obscured even the sun, making the sky look gloomy.

This is mainly due to the large amount of smoke emitted during the ironmaking process by the iron-smelting workshops in the workshop area.

For reasons of secrecy, the blast furnace did not appear here, and instead there were low, ordinary iron-making furnaces of about one zhang or so.

Even though they were separated by a wall, Zhao Dan could still hear the sound of the blacksmiths clanging iron.

After walking a short distance through the ironworks, you will come to a heavily guarded place.

This is the latest printing workshop set up by Zhao Guo, which is responsible for the study of printing.

"Who are you, do you have access tokens?" A heavily armed soldier of the Zhao army drank Zhao Dan's carriage.

Mao Sui, who was accompanying Zhao Dan, threw out a token: "Go and call the master here, and say that the king has summoned you!" ”

A master craftsman soon appeared in front of Zhao Dan: "Meet the king!" ”

Zhao Dan waved his hand with a smile and said, "I heard that the widow has made a breakthrough in printing?" ”

Zhao Dan actually attaches great importance to this matter.

The dawn of papermaking has already appeared, and according to the assurances of the great craftsmen, the production of paper will become exaggerated in a maximum of three or five years.

At that time, such a thing as printing was just needed.

Printing may seem simple, but in fact it has its technical difficulties.

No invention can be made casually, but it has to be practiced by countless ancestors and generations before it finally develops to the point of future generations.

Therefore, there has been a breakthrough in printing technology in less than a year, which is actually quite surprising to Zhao Dan.

So Zhao Dan decided to come and see for himself.

While walking, the master craftsman said to Zhao Dan proudly: "In fact, this is also the king of Hongfu Qitian, a while ago there was a craftsman from Hedong to join the workshop, this craftsman was after the public loss class that year, it is precisely because of this skillful craftsman that the printing technology was able to break through so quickly." ”

"Luban's descendants?" Zhao Dan's expression moved slightly, and he asked, "What is the name of this craftsman?" ”

The master craftsman smiled: "The king of good education has learned that the name of this craftsman is - Gong Lose True!" Look, the king, that one over there. ”

Zhao Dan followed the master's finger and saw a middle-aged man with a long face and small eyes, dressed in a craftsman's costume, raise his head and look in the direction where Zhao Dan was.