After assigning simple handicrafts, Jian Chen found Song and searched for a few young women from the four tribes who were not yet pregnant.

They were dressed in simple linen skirts, and made a few jingling pottery bracelets and shoes sewn from rabbit skin.

The rabbit's skin was whole, and its ears were dangling in front of the women's feet, small and cute.

There is a three-color thread tied to the ankle like the Dragon Boat Festival in the previous life, because it is really impossible to make up the five colors, but unfortunately there is a string of silver bells missing.

A simple wooden hairpin is embellished with a perforated malachite that gently rocks with every step. The women who put on their shoes felt that they couldn't walk anymore, so they easily moved to the river and looked at their reflections, and laughed.

Followed by a lot of envious women, many women were a little resentful of the incident when the apricot was yellow, otherwise they would be able to wear these now.

Touching his belly, he finally found a comfort that he could accept: he had children, but they didn't.

Chen Jian looked at the backs of these sisters, and said in his heart that it was finally a bit of a look, probably the essence of wearing clothes is to be more tempting, after all, covering up is far more arousing people's curiosity than half-revealing their bodies.

There were thirteen men and women, led by pine, and eighteen horned deer and six grass plows. It was filled with all sorts of bizarre things and necessities, most importantly the flag.

"Song, you go this time and tell more stories about your ancestors. Be careful, don't be impulsive when you encounter people from the Meteorite Clan, just leave them. ”

"Don't worry, I know that one person can't take revenge. I will live to see the destruction of their tribe. Jian, can you tell them how to grow wheat or something? ”

"Not yet, let's wait until the Meteorite Tribe is wiped out. Be careful all the way. ”

Song nodded and shouted, and the women took off their rabbit skin shoes and replaced them with woven straw sandals, for fear of staining the white velvet of the rabbit skin on the road. There are no other women on the road, and there is no reflection on the water, who is it to wear?

The tribesmen watched them leave the village without much concern.

Thirteen people, predators dare not provoke, wolves are busy choosing wolves in the autumn for mating rights, and they have no time to deal with humans.

After sending off the "missionaries", the remaining tribesmen sighed a few times and returned to their houses to continue spinning threads or weaving fishing nets.

There was only a group of children left in the courtyard, playing with wooden sticks or smashing walnuts there, all of which were caught by Jian Chen to survey the extent of the city wall.

The walls are extremely important for the people to feel safe psychologically, and as a symbol that they are the people of the city and have the right to speak.

According to the current aesthetics of the clansmen, regular geometry was the perfect choice, so he decided to make the walls square.

It is not easy to make a real square city with the existing conditions, and you have to start from scratch without taking advantage of the tools.

First, I found two wooden sticks and fixed them together, made a simple non-adjustable compass, and drew a circle on the flat ground.

Use a straight stick to draw a random diameter through the center of the circle, select a point near the middle of the arc, and connect it to the place where the diameter and the arc meet.

An inscribed triangle with a chord diameter must be a right triangle, as long as that point is on the arc.

According to the triangular imprint on the clay floor, a triangular ruler at almost right angles is glued with a straight wooden stick and fish maw glue.

Choose a point outside the village as the reference point, and draw a right angle with that irregular triangular ruler, and the two lines are extended.

Then find a straight pine pole, stand on the ground and hang the line, use gravity to make the hanging line into a perfect straight line, and use pine resin to pinch out three lookout mountains along the trajectory of the hanging line, because of the gravity hanging line, these three pine resin clusters must be in a straight line.

I found a rope, took a big step of about one meter by myself, took a rope of about ten meters, and let the children hold it.

The pine pole is placed horizontally on the line drawn on the ground, and the eyes are fixed on the three pine resin crosshairs, while the children walk forward with sticks and ropes, listening to his instructions to go left or right, and each time the rope is straightened, they insert a stick and continue to walk forward. Use this stupid method to keep the walls as straight as possible.

After estimating the population and the size of the city wall, the side length of 250 meters is about the same.

In front of the city wall is a trench three meters wide and one meter deep, and the excavated soil is used as rammed earth for the city wall, which does not need to be too wide and too high.

Three meters wide and one meter deep, multiplied by the side length of the square by one kilometer, the entire city wall has a total of 3,000 cubic meters.

Counting the tribes and slaves who were required to do servitude, all the men together should be about a thousand, and each of them would have to dig three cubic meters of earth.

The specific gravity of the soil is about 3, three three get nine, each person needs to dig nine tons of earthwork, 18,000 catties, converted into a soil basket is 180 baskets.

If each person could dig six baskets of soil a day, it would take a month. Even if the tools are rudimentary, six baskets of soil can be dug out, and the approximate time can only be known after calculation, and it is easy to distribute.

By the time the children had finished inserting all the sticks, there was an error of about 10 meters at the last point of union, which was an acceptable range with the current tool, so there was no second test.

Draw white lines along wooden sticks with burnt lime, just like in the previous life, when the township primary school was going to hold a June 1st sports meeting. Once the white line is drawn, the entire measurement is completed. On the whole, the city is high in the east and low in the west, which is convenient for drainage.

Tell Acorn to let him burn a few thick clay pipes as drainage channels and insert them under the city walls in the future, and the rest will wait for the labor force of those tribes to arrive.

In the course of three days, tribes came one after another, and their own people's fishing nets had been woven quite a lot, and they tried to catch fish several times, and the harvest was very rich, because no one had ever caught fish with regular fishing nets in the grass river.

However, after those foreigners appeared, Jian Chen asked the tribesmen to suspend fishing and discussed a few words with them in a whisper.

When all the leaders and the light and strong had arrived, the hall of the council was once again lively.

The leaders of the fourteen tribes gathered together and looked at the two gourds, which were still green in this season, and were terrified.

Four large sheep oil lamps illuminated the room, and the walls around it were whitewashed with lime, white as snow, with a faint smell of lime.

The wall in front of him was covered with a delicate linen cloth, and when Jian Chen saw that the leaders had gathered, he clapped his hands, and Yu Qian'er and another child lifted the linen cloth together.

It seemed to be the end of the darkness before dawn, and the moment the sackcloth was lifted, the leaders felt that their eyes were a little stinging, as if they had seen the first rays of the morning, and many of them let out a soft sigh, stood up one after another, and leaned forward to watch.

It was a painting, a pole of simple lines, without any softness, full of straight lines, right angles and rectangular paintings, only black and white, and some charcoal powder in many places.

The regular geometry shocked the leaders, especially the sun on the far right.

The sun was big, round, the arc was so perfect, there was no bending, it was so round that they felt as if the sun really fell on the painting.

They didn't understand what it was for a while, but the regular geometry alone had made them love the painting, and the shock was far greater than the two gourds that were still green.

Chen Jian took out a small wooden stick, pointed to a large square on the outermost part, and said, "This is our wall, and there will be a trench outside to block wild beasts and enemies." ”

"This is where we live, and each clan has its own range. These blank spaces are roads, and it is not allowed to pile firewood and grass on the roads, and for the violating tribes, I propose to pay a hundred catties of food for public use. ”

"On this side of the rising sun is the Fang Market and the Academy, and if you want to exchange, you have to go to the Fang Market. The children are sent to the school to learn how to burn pottery, farm, count, shoot arrows, line up, and fight. ”

"This side near the Grass River is a place to worship ancestors, and in the future, anyone who has done great things for the tribe will have a clay statue here, so that future generations will always remember it. And the law which we have agreed upon shall be printed on clay tablets and shall be set up here. ”

"In the corner of the city wall are cattle sheds and toilets, and it is strictly forbidden to go to the toilet in the city wall, and the ashes of plants and trees must also be piled up in the toilet.

"What do you think of my opinion?"

There was no sound, and the leaders had already used their imagination to fantasize about their future lives, fantasizing about what it would be like to live in this painting in the future, and they didn't seem to hear what Jian Chen was saying.

It wasn't until Jian Chen asked again that these people nodded one after another.

Someone couldn't help but ask, "Ken, that's good, we all agree." But...... How long will it take? ”

Jian Chen stretched out three fingers and said, "Three months!" At the latest, when the apricots are yellow, you can do it. ”

The leaders swallowed, their eyes couldn't take their eyes off the walls, and their hearts pounded.

"Three months? Can the people of the Clan live here in three months? ”

They felt the blood in their bodies churning up, their heads were a little dizzy, their bodies trembled slightly, and finally they burst into a burst of cheerful laughter.

In the laughter, they didn't notice that Jian Chen said something in Yu Qian'er's ear, and Yu Qian'er nodded and went out.

After these people finished laughing, Jian Chen said, "If you want to live in, you need to rely on your hands." Just by looking at the eyes, not even three months, not even three hundred months. Our clan will help you build the house first, and the height of the house should not exceed the room where we worship our ancestors, nor can it exceed the school, you can all agree with this, right? ”

"Of course, it certainly won't exceed. Guy, let's say, what? ”

"yes, hurry up."

Chen Jian took out a piece of birch bark and read: "The city wall and the ditch are a thousand steps in total, and the seven betrayed tribes are responsible for four hundred steps, and we are responsible for six hundred steps. ”

"Since the city wall is to protect everyone, of course everyone needs to dig it together, according to the population of each tribe to live in, you can tell me the number of people in each tribe."

The leaders talked about the population of their tribes, and Jian Chen counted them and sorted out the length that each tribe needed to dig.

After hearing this, a few tribes couldn't help but ask, "Jian, there are still some captives in your tribe, aren't they counted in it?" ”

"Of course not. This wall is not to protect them, but to protect us. ”

The leaders stopped talking, thinking about how long it would take, and Jian Chen smiled and said, "I have already calculated for you, each man digs six baskets of soil a day, and we can dig a trench in a month." ”

"Six baskets of soil? That's easy, too, our people can dig ten baskets a day. ”

"That's your business, I'll take you to see the place where each tribe wants to dig, it's up to you when you finish digging, but if you can't finish digging before the apricot yellows, then you should never live in it."

The leaders laughed and agreed to the proposal.

"The second thing is that we will plant wheat beans in the future. To fight a war, you need training, and to go out to war, you need food. I have two opinions, you can choose one. ”

"First, it is to divide the clan land and the communal field, and each tribe must first cultivate the communal land and then go back to cultivate its own clan field. The grain harvested from the fields went to all the tribes and was used to prevent famines, fight wars, and to provide for children and reward those who had made great contributions to the tribes. ”

"Second, there is no distinction between clan land and public land, and the land of the tribe belongs to the tribe, but every time the grain is harvested, fifteen catties must be handed over to one catty as public property. All the tribes that did not pay were driven out of the city walls and deprived of the right to deliberate. ”

After the two opinions were spoken, the leaders discussed it one after another, and almost unanimously chose the second option.

"Then it's decided, let's still follow the previous method and engrave the things we set on the clay tablet."

The clay tablets had already been prepared, and when the leaders stood up to press their handprints as they had done the last time, the leaders were startled by the sudden sound of drums and commotion outside.

"What's wrong?"

"It's nothing, it's my family fishing with nets."

"Nets?"

Chen Jian walked to the window, lifted the straw curtain and took a look, the tribesmen were holding birch bark boats, singing some strange tunes and laughing and rowing into the grass river, leaving behind the fishing nets carrying hope.

Chen Jian pretended to be indifferent and walked up to the leaders and said with a smile: "Let's go, let's go out and have a look together, and see how many fish the ancestors' guidance and protection have brought us." ”