The first foreign trade of the Xia Kingdom this year ended smoothly, not only trading back a large number of cattle, horses and animal skins, but also bringing back the leaders or witches of the three tribes who went to the Xia Kingdom to investigate.

These three tribes are coming to the Xia Kingdom to investigate now, it can be seen that the three tribes have a relatively big idea of joining the Xia Kingdom, and it is not surprising that after seeing the strength of the Xia Kingdom, the three tribes will join the Xia Kingdom this year.

In addition to these things, the three trading fleets also brought back almost identical news.

All the high-ranking officials of the Xia Kingdom knew that the winter that had just passed lasted longer and was colder than the previous winter, and it was a very cold kind in the cold winter.

If it weren't for the fact that the brick houses of the Xia Kingdom could withstand the cold, with stoves, ondols for heating, and plenty of animal skins, I don't know how many people in the Xia Kingdom would have frozen to death.

But other tribes can't, the houses of other tribes are mostly made of wood or wood and stone and soil, in this kind of house can not be made of fire at will, if you are not careful, this house will be burned, and those houses are not well sealed, and they cannot withstand the cold like the brick houses of the Xia Kingdom.

In the past winter, all the tribes that Xia Kingdom came into contact with had their clansmen frozen to death, even the fishing tribe and the Japanese tribe were no exception, and a small tribe of more than 700 people, more than 40 tribes were frozen to death.

Those who freeze to death are mainly minors and sick people, and healthy adults can still withstand the cold.

It has not happened for many years since so many tribesmen were frozen to death in one winter, but other tribes are not as sensitive to climate change as Xia Guo, and only think that it is an "ordinary" cold winter, and it is impossible to be cold every year, and the next winter will return to normal.

Other tribes think that ordinary things are not ordinary in the eyes of the high-level leaders of the Xia Kingdom, and the duration of this has been increasing for several consecutive winters, and it is very likely that the time of the next winter will continue to increase, if they do not prepare in advance, most of the small tribes with a population of less than a thousand people will be in danger.

"King, this matter is also a good thing for our Xia Kingdom, those tribes can't withstand the cold winter, but our Xia Kingdom is not afraid of this cold winter, tell other tribes about this matter, maybe more tribes will join our Xia Kingdom." Lu Yuan said.

"Well, let's talk about it." Su Yan agrees with Luyuan's proposal, but it is only Su Yan's lament, lamenting that this climate change does not know where it will go.

If it's just a cold winter, but this cold winter is cold, and the cold winter will come to a normal winter after the cold winter, Xia Guo doesn't need to worry about such a cold winter, there are brick houses, ondols, stoves, and animal skins, and it is almost impossible for Xia Guo to freeze to death.

Even if the winter is cold every year, it is not terrible, and there will be relatively normal spring, summer and autumn in the past winter, and the summer country can cultivate the land and harvest enough food.

I'm afraid that the winter time will be extended indefinitely, not to mention the ice age that lasts for decades and hundreds of years, just the temperature drop throughout the year is a huge blow to the summer country, climate change will have a huge impact on crops, and the reduction of yield is only a small problem, once the harvest is lost, hunger will come.

Su Yan could only think about things on the bright side, thinking that the current climate change would not last too long, and it would soon return to normal, and the climate change in this case would not have much impact on the Xia Kingdom, and at the same time, he could also let more tribes join the Xia Kingdom as Lu Yuan said, so that the Xia Kingdom would become stronger.

Not only is it the method that Lu Yuan said, but he can even tell other tribes about the delay in winter, and make the matter more serious, so that those tribes will have the idea that "their own tribe alone cannot withstand the cold winter, and they can only continue to survive by joining the Xia Kingdom".

However, this method is not in a hurry, this year I will use the method that Lu Yuan said, and then I will use the second method next year.

Of course, once things go in a bad direction, everything Xia Guo does will be useless, but if things go in a good direction, Xia Guo will become stronger.

……

The three trading fleets of the Xia Kingdom brought back the leaders of the three tribes or witches on the first trip, and the leaders or witches of the six tribes on the second trip, and other tribes that came into contact with the Xia Kingdom also sent their clansmen to the Xia Kingdom as guests.

A few months have passed in a flash, and autumn is coming, and there are already five tribes that have decided to join the Xia Kingdom in the form of clans, namely the Sun Clan, the Flower Clan, the (second) Snake Clan, the Fox Clan, and the Crow Clan, and the population of the five clans together is close to five thousand.

Among the five clans, the Ri clan is not the Ri tribe of the Ri tribe camp, the population of the Ri tribe has exceeded 5,000, and the population of the entire Ri tribe camp has exceeded 12,000, and the Ri clan that joined the Xia Kingdom is just a medium-sized tribe with a population of more than 1,200 people, and the gap between the two is not ordinarily large.

Most of the tribes have beliefs, and the things they believe in are strange, a small number of them are fantastical, and most of them are all things in the world, such as tigers, leopards, bears, wolves, deer, snakes and other beasts, wind, rain, thunder and lightning, the moon and the sun are also relatively common beliefs.

It is normal for multiple tribes with the same belief in the same thing, from the snake tribe to the dragon tribe to the Xia country, I don't know how many tribes have been encountered with tiger beliefs, and the Xia country itself has two tiger clans.

There are five tribes that have decided to join the Xia Kingdom, considering the problem of climate change, the time when the five tribes migrated to the Xia Kingdom is placed after the autumn harvest, and the grain of the five tribes will also be transported back to the Xia Kingdom without falling, and the Xia Kingdom needs to store a lot of food.

In addition to these five tribes, there are also some tribe leaders or witches who personally come to the Xia Kingdom to take a look and see the strength of the Xia Kingdom, but these tribes are still between joining the Xia Kingdom and not joining the Xia Kingdom, and they are swaying, after all, if they join the Xia Kingdom, they will lose their sovereignty, and everything must be done according to the orders of the king, and these tribes are worried that there will be accidents after joining the Xia Kingdom.

It can only be said that they are too cautious and cautious about this wavering tribe, but this cautious attitude is also one of the reasons why these tribes can survive.

The autumn harvest has ended, and listening to the report of He An, the minister of agriculture, Su Yan feels that climate change has had an impact on Xia in recent years.

The duration of winter is extended by more than 20 days, and the spring, summer and autumn seasons exist normally, but compared with previous years, the average daily temperature has dropped slightly, and the yield of various crops has been slightly reduced.

The yield per mu of various crops has decreased slightly, but fortunately, all fields are planted with seeds of high-yielding crops, and there are still a small number of fields planted with seeds of new varieties of high-yield crops.