Sea ships have made great progress, most notably by the abandonment of the original sail in favour of the Arab spinnaker.

The unique feature of this sail is that it can sail against the wind!

When this discovery was brought back to the Great Song Dynasty, almost all the maritime merchants scoffed at it, what about the deceitful ghosts? How is it possible to sail against the wind?

This is indeed evidenced by the appearance of the spinnaker, which, unlike the crosssail, can make a much larger turn in the transverse position of the ship, and can even be in line with the long axis of the ship, so some people call it a schooner.

When the schooner is headwinded, it turns to one side and then the other, winding its way up in a zigzag pattern like a winding road, which is a little slower and takes more time, but it is much better than anchoring against the wind......

It can be said that with this spinnaker, the sea ships of the Great Song Dynasty can sail freely on the sea, and of course, many small sailing boats have been born, either going out to sea for fishing, or doing short-distance transportation, and the speed is very fast......

Nowadays, Liaodong has been occupied by the Great Song Dynasty, the entire coast of the East China Sea is the territory of the Great Song Dynasty, and the construction of the castle has never stopped, and the people of the Han family have been migrated here, there are not many people at the beginning, but this is only the beginning, just like the original immigration to Lingnan, there are also many people who are unwilling to migrate, but when they see the benefits later, they are out of control, and even there is a southward migration boom.

Liaodong is also facing this situation, Zhao Zhen can only send a small number of people to go first, and after they get the benefits, more people will go voluntarily with the "advertising effect".

Fortunately, there is a precedent for the development of Lingnan, so it is not very difficult to recruit the people at the beginning, but there are some people from poor families who are willing to go, and it is not a problem to return to the roots, the imperial court has announced that the people who have migrated can also move back, as long as you are willing, but you must stay in Liaodong for five years.

Such a requirement is nothing for the people of the Great Song Dynasty, after all, for the Song people, going out is no longer a big thing, more and more young people began to go out of the countryside and began to enter the big city to find a job, at least it is much better than facing the loess at home with their backs to the sky.

This is a great progress, at least the people of the Great Song Dynasty will not be bound by the land, and they will not want to change if they live with this thing for a lifetime, and there will be a new place to accept them and open the way for them to get out of that class.

Originally, study tours were something that only rich children could do, but now, as long as you are willing to endure hardships, study tours are not so difficult............

As the young people go out, many older people are reluctant to leave, but the imperial court does not force it, after all, it is an excuse to go to Liaodong, and it is better not to go to the boats of the older people, even if they go to Liaodong, can they still build?

The current Great Northern Wilderness is still a barren place!

It would take a large population to clear the land, but it was a long project, at least until the people of the Great Song Dynasty had a solid foothold in Liaodong.

The first fleet of 500 ships full of people has set off one after another, cleaving the waves on the sea, escorted by the fleet of the Great Song Dynasty, to the Wa Kingdom, which is the first transit point, and there is no need for the people to accept the turbulence on the sea for too long.

Zhao Zhen didn't have the opportunity to see this kind of scene, but according to Cai Boyu's report, Zhao Zhen could imagine the scene at that time, five hundred sea ships were the beginning, and more sea ships would join in the future.

Such a transportation capacity is nothing to Da Song, and it will not even have much impact on sea transportation.

When the fleet arrived at the Wa Kingdom, it was regarded as entering the inland sea of the Great Song Dynasty, with the Wa Kingdom as the east and the Jurchen as the west of the land surrounding the Sea of Japan in it.

The only one who can threaten the Great Song Dynasty is the inevitable Goryeo, but Zhao Zhen does not think that Goryeo dares to make a move against the Great Song Dynasty......

Zhao Zhen looked at the chart in front of him and sighed slightly, time, the thing he used to care about the most and squandered the most, now gave him a good look, and now it seems that he really didn't make good use of it.

The Great Song Dynasty has always set its sights on overseas and foreign countries, and of course, it is also true, whether it is the Abbasid dynasty or Europa, they are eager to sell the goods of the Great Song Dynasty, and now the Great Song Dynasty will not only sell silk porcelain and a large number of handicrafts, but also coffee and glass and mercury mirrors produced in Yunnan.

Because these are new products, the Abbasid dynasty and the people of Europa have almost no resistance to them, not to mention them, even the people of the Great Song Dynasty have been impressed by the aroma of coffee and the transparency of glass, and the delicate mercury mirror of the people is irresistible.

As long as you have a way to get goods from Yunnan Mansion in the Great Song Dynasty, some people are crying and shouting to send you money, or ask for a partnership to hire a fleet, or let you sit and wait to collect the money............

During this time, news came from the Protectorate of the Western Regions that merchants from as far away as Europa appeared in the Western Regions, and they finally took a trade route from the Holy Roman Empire to the land transportation of the Great Song Dynasty............

This Silk Road is almost the same as the Silk Road in the Tang Dynasty, except that the name of the place has changed, and the country has changed.

But this did not affect the flow of commerce, and the Silk Road enriched not only the Great Song Dynasty and merchants, but also many countries along its way, and even the Seljuk Empire in Central Asia welcomed the arrival of these merchants.

So money is not a problem for the Great Song Dynasty, but now the entire Great Song Dynasty is facing a huge contradiction, on the one hand, the increase in population, on the other hand, the growth rate of the population is too slow, Zhao Zhen feels that this kind of false proposition should not appear in the feudal era, but now it is real.

In the feudal era, natural disasters and man-made disasters, diseases and wars would consume a large number of people, so this natural selection and decision forced the population of China to always fail to reach saturation, but now the Great Song Dynasty is different, with the development of the land in the south, with the South China Sea countries being conquered and annexed, the grain production of the Great Song Dynasty is amazing.

But on the other hand, the Great Song Dynasty needed to continue to immigrate, send out more people to build, after taking Yunnan, the Great Song Dynasty migrated a part of the people, after taking the South China Sea countries, the Great Song Dynasty migrated a part of the people, followed by Yanyun, and then the Western Xia, it can be said that the people of the Central Plains have been relocated a lot.

Now he is going to migrate to Liaodong again, and Zhao Zhen even plans to use sea ships to migrate people to Australia, where the real land is fertile!

But a sharp question was placed in front of Zhao Zhen, there were so many people in the Great Song Dynasty, how could they meet their needs?

Population is the foundation of a country, but also the driving force of a country's development, without population, everything will be empty talk, especially for an empire like the Great Song Dynasty, the previous population explosion remarks about Pang's Xia Zhu were actually Zhao Zhen scaring these two people, in order to let them support themselves to take Liaodong............

The current Great Song Dynasty is not too populous, but too small!