According to Dai Yan's plan, after the promulgation of the "Household Registration Law" in the Song Kingdom, all the serfs originally owned by the nobles in the Song Kingdom should be transformed into ordinary Song people. And the entire Song State can only develop rapidly when such a large number of human resources are liberated.

Therefore, in his mind, there should be no more slaves in the Song Kingdom today. However, it had only been half a year since he took charge of the Song Kingdom, and he had discovered how serious his misjudgment in this kind of thing was!

Things have to go back to the end of the Song-Chu War. At that time, the Song State, with the help of the Qi State, backed by force, and used diplomatic means to force the Chu State to withdraw from the Xiangyi Coal and Iron Mine.

Although the Song State successfully recovered the Xiangyi Coal and Iron Mine, the ensuing incident also gave Dai Yan a headache: the entire Xiangyi Coal and Iron Mine had been emptied by the Chu State!

The emptying here does not mean that the state of Chu hollowed out the coal and iron ore in a short period of time, but that the state of Chu directly swept away all the people in the coal and iron mines, including technicians and managers, and even ordinary miners!

The Chu army left such an empty mine in the Song State like this, which made Dai Yan secretly hate! However, Taoqiu's urgent need for coal and iron as raw materials forced Dai Yan to find a way to restart the coal and iron mine as quickly as possible. In addition, at that time, the Song State was decided, and he needed to be busy with the marriage with the Qi State, so he directly delegated the matter to the Taoqiu merchants to deal with it.

He only gave Lu Xing, a merchant in charge of coal and iron mines, a very simple request: to restore the supply of coal and iron to Taoqiu in the shortest possible time. Then he left Xiangyi and returned to the center of the Song State to deal with state affairs. Later, when Lu Xing let the coal and iron mine start construction in a very short time, and this news was reported to him as good news from Xiangyi, he also praised Xiangyi Coal and Iron Mine for being so efficient!

However, he definitely didn't know how Lu Xing did this! The personnel in the coal and iron mines, such as technicians and managers, are all good to say, from Taoqiu can pull up a group of ready-made people, but those who dig by themselves are definitely not easy to find!

Even in the 21st century, coal mining is definitely the most difficult industry in the land of the Celestial Empire! In such an era of underdeveloped productivity and poor equipment, it is even more so! Mining is not only hard, but also very dangerous, even those who would rather be serfs and have no food to eat, are reluctant to mine!

It was also because of the previous large-scale crusade against water bandits that Taoqiu was able to capture these prisoners of war and use them for mining. And now the entire Song Kingdom is Dai Yan's own, and the prisoners of war who fought with the Suiyang Army before have become Dai Yan's people; In the war with the Chu State, the Song State did not have any prisoners of war at all, and in such a situation, it was indeed not an easy task for the entire Song State to find suitable miners!

However, anything difficult is not a problem at all at a time when primitive capitalism like Taoqiu is in dire need of development! Can't find suitable miners in the Song Kingdom? It doesn't matter, then look abroad!

The Yue Kingdom in the south became the first target of the Song people! After the Zhao Slippery felling of Yue, the entire Yue Kingdom had been effectively destroyed. However, for the large territory of Yuedi, the Chu State had no way to eat it directly, so the land of the original Yue State was basically "autonomous" by the nobles of the original Yue State.

In such a place where the management of the Yue King has been lost and the nobles are "autonomous", the nobles naturally have great unhappiness with each other! Although considering the threat of the Chu people, these Yue people did not fight, but there were definitely a lot of conflicts in private!

It was at such a time that the Taoqiu merchants came to Yuedi. And this chaotic place is actually the place that Taoqiu merchants with military industry like! With only the worst weapons in their hands, the Taoqiu merchants obtained a large number of slaves from Yuedi and transported them to the Xiangyi Coal and Iron Mine, so that the mining area could resume production again!

It's a pity that the Yue people are unruly by nature and are not easy to succumb, and it is not too ideal to be a miner!

And when Kong Tongjia, who was sent overseas by Dai Yan and became the first overseas feudal lord of the Song Kingdom, returned to the Song Kingdom and knew the predicament encountered by the Xiangyi Coal and Iron Mine, he immediately came up with an excellent solution: use the Japanese people!

Since the first person to be transported back from the Japanese archipelago by the fleet that opened up overseas, the image of "Waren" immediately spread from Yancheng and was worn throughout the Song Kingdom. For the Song people, such a name is really suitable for these people!

An ordinary Song person is roughly between 1.6 meters and 1.8 meters tall, but this kind of person brought back from overseas is not even 1.3 meters tall! Even the relatively short Song people can be a head taller than these Japanese people! If it weren't for the captains trying their best to tell everyone that this was an adult, the Song people would definitely think that this was definitely a child!

Therefore, it is very easy to define this kind of person with obvious characteristics: the Japanese people. From human to short, that is to say, these guys are dwarfs!

Don't look at the short size of the Japanese people, but what they can do is really amazing! Because of their short stature, these people don't eat much, but they can do a lot! Moreover, the Japanese people are docile, easy to obey, and can manage well.

Taoqiu's overseas gold and silver mines can become an important source of wealth so quickly, and Kong Tongjia's ability is naturally one of them, but the contribution of these Japanese people is definitely not small!

Because of their short stature, these widows were able to move around in the low mines, and slowly dig out valuable ore with a hoe! Even if it is not much at one time, with the number of Japanese people, plus the heavy physical work of transporting minerals from the bottom of the mine with a crane to solve it, the efficiency of Japanese mining has improved a lot! (Readers can greatly refer to the dwarves in Ironforge in Warcraft, who are good at forging and smelting)

With Kong Tongjia's personal experience of the Japanese miners as the owner of the mine, Lu Xing, a person who shoulders the heavy responsibility of supplying raw materials for Taoqiu's commerce, was so moved that he was about to cry! Such a good miner, why didn't we think of it before?

Subsequently, under the banner of primitive capitalism in Taucuna, various fleets of ships bound for the Japanese slave country were in full swing. The major trading houses and money houses in Taoqiu even directly provided funds for these adventurous people, and helped them form a special "manpower transportation trading house", which constantly transported boatloads of Japanese people from the Japanese archipelago and invested in the operation of Xiangyi coal and iron mines!

Because the territory controlled by Dai Yan has increased a lot all of a sudden, the entire Taoqiu has also become more prosperous because of the direct expansion of the market! Therefore, in just half a year, the resource demand of Xiangyi coal and iron ore has become more and more urgent, and the demand for Japanese slaves has become more urgent!

Behind this urgency, the most obvious sign was that the market value of the trading houses that were responsible for transporting the Japanese slaves began to rise rapidly!

This is still Taoqiu did not set up a formal stock exchange, can officially sell the shares of the firm, if there is such a thing, these transport slave firms can be listed, it is estimated that in just half a year, its market value will definitely pull out an extremely bright slash!

You must know that in the 17th century, the market value of Western slave trading companies on the Amsterdam Stock Exchange in the Netherlands increased by an average of 6% per year in a hundred years! You must know that this is an era when the industrial age has not yet begun, and the impact of technological improvement on the economy is still minimal!

And when Dai Yan knew about the existence of the Xiangyi Coal and Iron Mine, the situation of using Japanese slaves and a small number of Yue slaves and even Dongyi slaves in the entire mining area had begun to form a scale! At this time, even Dai Yan can't easily change such a situation!

As a good young man from later generations, Dai Yan still has a lot of psychological pressure on the resurgence of slavery. However, after thinking about the current situation and the stakes involved, he still acquiesced to the practice of using slaves in the mining area today!

After all, in today's era, in order for the country to become strong, it must go through bloody primitive accumulation. If he didn't want this bloody catastrophe to fall on his people, then he had to let it fall on outsiders!

In consideration of his own identity, and even the strategy of the entire Song State in the future, Dai Yan still restricted the use of slaves: overseas Japanese slaves and Vietnamese slaves could use them, and Yimin slaves were not allowed to use them anymore!

In any case, Dai Yan considers himself a member of the Huaxia clan. For the Yimin who may be their ancestors, Dai Yan still retains a respect!

For the Han nationality and even the Chinese nation, which people are considered their own people, this is very important! In the land of China, the primitive Huaxia tribe is naturally the Yanhuang tribe that originally originated in the Central Plains, and under the eastward expedition of such a tribe, it continued to conquer and integrate the Dongyi, Xirong, Beidi, and Nanban in all directions, and finally formed a Huaxia tribe with a unified culture!

Dai Yan has a lot of understanding of the formation of the Huaxia people in later generations, and in his opinion, among the ethnic minorities located around China, the best integration with the Huaxia people is Dongyi!

This phenomenon is reflected in later generations, and the most obvious evidence is that the number of people surnamed Zhang ranks third among the hundred surnames in the Celestial Empire!

Zhang, separated from the bow and long, originally meant to be a person who has a long work, which is the most basic feature of Dongyi. And the other surname, Xu, who is a descendant of the Xu Kingdom, is also the surname in the forefront of the Celestial Empire!

Moreover, the establishment of the Song State itself has something to do with Dongyi. Although the Yi people in the East China Sea are not too recognized by the Song State, Dai Yan believes that as long as it continues for a period of time and the exchanges between the two sides increase, these Yi people will eventually become part of the Song people!

For the Japanese and Yue people who were allowed to be slaves, Dai Yan would not treat them as comrades at all! Not to mention the Japanese people, the footpot chicken in later generations, almost any young man of the Celestial Empire, hated him, and Dai Yan did not have the slightest guilt for using his ancestors as slaves!

And for the Yue people, the same is true for Dai Yan! Although these people now live in the land of the Celestial Empire, and even in later generations, these people live in the core area of the Celestial Empire, Dai Yan knows very well that these people cannot be regarded as the ancestors of the Huaxia clan at all!

In later generations, among the southern provinces, which of the top surnames Liu, Chen, Wu, Xu, Huang, Qian, Cai, etc., was related to the Yue people? Those primitive Yue people have actually been driven and chased by the Huaxia tribe's "Nandu" again and again!

And the few remaining people were actually driven to a small southern country, and established a small country with complacency, and from time to time tried to restore its "ancestral country"!

In Dai Yan's mind, Yue Di will sooner or later be included in his rule, and from now on, it is actually not bad to start weakening its power!