Just twenty days after the third month of spring, the dragon tribe's city wall project was completed, and at the moment of the completion of the city wall project, four groups of eight wooden doors eight feet long and five feet wide made by the carpenters were all installed in the middle of the four city walls.

The outermost part of the dragon tribe is blocked by a net wall, but the net wall cannot completely block the beasts, and it is still possible to move in the planting area outside the dragon tribe's residence, and the adults of the dragon tribe do not even allow children to play in the planting area casually.

Now, the city wall project has been completed, and under the shroud of the city wall, the narrow living place of the dragon tribe has suddenly expanded more than ten times, and children can play freely in this vast area, whether it is an enemy or a beast, they will be blocked by the one-zhang high city wall.

In addition, the lookout on the city wall is usually guarded by the clansmen, once an enemy or beast approaches the dragon tribe's residence, they will immediately issue a warning, as long as the specially cast gong is sounded, the people in the residence will quickly bring weapons to the city wall where the sound is heard, stand behind the city wall and attack the attacking enemy or beast with short spears, stones and even bows and arrows.

The city wall project was the largest project that the Dragon Tribe had carried out over the years, and the Moon Clan, who had just joined the Dragon Tribe, and the three tribes of the River Tribe, the Bear Tribe, and the Tree Tribe, which had been communicating with the Dragon Tribe, were all surprised that the Dragon Tribe was able to complete such a large-scale project.

The Moon Clan has joined the Dragon Clan, and the people of the Moon Clan look proudly at the walls built by their tribe.

The Tree Tribe lives in the Big Tree, and it doesn't matter if they don't have this wall.

But the people of the two tribes of the River Tribe and the Bear Tribe who came to the Dragon Tribe as guests were different, their expressions were not only surprised but also envious, they envied the Dragon Tribe for being able to build a city wall of such a scale, and they envied the Dragon Tribe for being able to protect the city wall without worrying about any threat.

The leaders of the River and Bear tribes were very interested in the dragon tribe's walls when they first visited the dragon tribe, and they thought that it would be good for their tribe to have such walls in their own tribe settlements, and they no longer needed to worry about beasts and enemies.

They returned to the tribe and tried to do something like this, not with a turn, but with stone and clay, and after some attempts, both leaders gave up.

There were too few people in both tribes, and the adults were busy collecting food every day, so they didn't have time to build a wall, even if their residence was much smaller than that of the dragon tribe, the wall building project was a huge project for their tribe, and it could take two years or more to complete.

The biggest difference between other primitive tribes and dragon tribes is that dragon tribes can easily obtain a large amount of food every day, and dragon tribes have a large amount of food reserves.

Other primitive tribes spent most of their days getting food, hunting, fishing, and digging wild vegetables and plant roots, so that their people would not starve to death, and it was normal to be hungry and full.

Even if you get enough food on a given day, you won't be able to feed all the tribesmen, so you have to keep a certain amount of food as a reserve.

As for those primitive tribes that could not obtain enough food for various reasons, either the clansmen were drastically reduced to a level that they could bear or completely extinct, and the Yue clan, which had originally had a sharp decline in adult people, belonged to this category.

The tribesmen couldn't eat enough, and where was the time to carry out the work of trimming the wall, just the matter of food, the dragon tribe and other primitive tribes were completely pulled apart, and they were getting bigger and bigger.

Imitation learning was not the exclusive ability of the Eagle Clan, both the Bear Tribe and the River Tribe fished from the river for food, and the two tribes saw that the Dragon Tribe could catch more fish from the river with their nets, and both tried to weave fishing nets with straw ropes.

In the course of two months, the fishing nets of the two tribes could not catch up with the straw rope fishing nets that the Eagle Clan once weaved, but the fishing efficiency was a little higher than that of harpooning, at least the two tribes could get a little more food every day, although it could not make all the tribesmen full, but it was also much stronger than before.

……

The city wall project has been completed, and Su Yan directs the people to carry out the next project - the construction of houses.

After the construction of the city wall was completed, the entire city was divided into five areas, namely the central area, the northeast area, the southeast area, the northwest area, and the southwest area.

The planning plan of the city has been designed in advance, not only the hierarchical tiled houses, but also the roads, drainage canals, toilets, bathhouses and other planning areas.

The Dragon Tribe now has two kinds of tiled houses, one is the tiled house with an added kang where the high-rise of the Dragon tribe lives, and the other is a tiled house where ordinary people live only with a stove and no ondol.

The tiled house to be built is different from the original two tiled houses of the Dragon Tribe, and the biggest feature is that the new tiled house will add wooden doors and windows.

The previous two kinds of tiled houses have no windows, and it is relatively hot and humid in summer, and the houses are darker, so add wooden doors, especially wooden windows, and the wooden windows can be opened in spring, summer and autumn.

The change of the tiled house is not only the addition of wooden doors and windows.

First of all, it is necessary to determine the final occupants of the tiled house: a tiled house will only inhabit one family, one man, one to two women, and two to six children.

That is to say, a tiled house is inhabited by a minimum of four people and a maximum of nine people, according to this situation, Su Yan designed a new tiled house, two feet long and seven feet wide, a tile house is divided into three rooms, the left and right two rooms are each one zhang wide for the bedroom, the middle seven-foot wide room is set up with two stoves, and the two bedrooms of the residents each have a kang bed.

However, this is the final situation, and the final house is better than the tiled house that Su Yan lives in now, and it will take longer to build such a tiled house, and more materials will be used.

Limited by the current situation of the Dragon Tribe, the tiled house where ordinary clansmen live will not have a fire kang for the time being, and the two bedrooms of a tiled house will each inhabit a family, which can be regarded as increasing the living space of the clansmen.

You must know that the tiled house where ordinary people lived before was one zhang seven feet long and one zhang two feet wide, but it was crowded with nearly 20 people, fortunately, there were more children, especially children who were just born for one year to three years, if the children were older or there were more adults, the tiled houses were about to burst, and there was almost no room for activity in such tiled houses, which can be described as crowded.

This situation is probably similar to the cave of the snake tribe at the beginning, which is also crowded.

Therefore, when designing new houses, Su Yan made many improvements to the houses where the tribesmen lived, at least so that the places where the tribesmen lived would not be too crowded.