Jiang Xuan didn’t know what happened in the Frog Tribe. He was busy with something important at this time.
That is to establish a trading area.
This is something Jiang Xuan has always wanted to do, but had not been able to do before.
Trading, especially with primitive tribesmen, is very profitable, and the risk is much smaller than direct war.
For example, the Black Teeth Tribe.
They have been traveling among various tribes in the Southern Wilderness for a long time to do transactions, buying at low prices and selling at high prices. The profit of a piece of goods is at least ten times, or even dozens of times, the original price.
Because of this, the Black Teeth Tribe makes a lot of money every year and has become a famous and wealthy tribe in the Southern Wilderness.
The resources earned from trading will promote the continued growth of the tribe. After the tribe grows, it can trade with more tribes. This is a virtuous circle.
Of course, if you want to earn various resources by doing transactions, the tribe itself must be strong enough, otherwise others will not just make deals with you, but directly grab them.
Although the former Vine Tribe did trade, they were relatively passive and did not earn much because they were not strong enough.
Now, Jiang Xuan feels that the time has come and is ready to turn his passiveness into an initiative and build a trading area outside the Teng tribe for people from other tribes and nearby tourists to come and do transactions.
The first step is to select a site.
Jiang Xuan chose to build the trading area to the south of the Teng tribe because it has the largest number of tourists and many tribes have migrated here.
The second step is to build a house.
The wooden house is definitely not good. It has a short service life and looks too simple.
Jiang Xuan plans to build several sturdy and durable mud-brick houses, which not only have a long service life, but also look very tall and sturdy at first glance, which are obviously different from the buildings of other tribes.
After thinking about it, Jiang Xuan immediately began to recruit people to work.
He found more than thirty prisoners who were strong and quick at work, as well as people from the Vine tribe who were responsible for building houses before, and asked them to dig the foundation first.
The mud-brick houses originally built by the Teng tribe had no foundations.
Once it rains heavily, part of the mud bricks next to the ground will be melted by the rainwater, which often requires repairs and digging a large number of drainage ditches to drain the rainwater away in time.
After learning the first lesson, all the mud-brick houses built by the Teng tribe would dig the foundations, and then use stones to form the base of the walls. Then, they would spread the reconciled mud on top, and then build the mud-brick walls.<
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In this way, the mud bricks will not be easily eroded by rainwater, and the house will become stronger and more durable.
At the south gate of the Vine Tribe, inside the vine wall, Jiang Xuan directed everyone to work.
"Come on, come on, pull the rope first."
Jiang Xuan took several long bundles of rope and a large bag of lime to draw lines for the foundation.
He first fixed two ropes, one long and one short, on the ground to form an angle.
In order to ensure that this angle is a right angle, he used the simplest Pythagorean theorem.
For a triangle, if the length of the first side is three, the length of the second side is four, and the length of the hypotenuse is five, then it must be a right triangle.
"Gou San..."
Jiang Xuan drew a straight stick three times on a rope that had been fixed, and drew a mark on a place as long as three sticks.
"Four shares..."
He still used this small stick to draw a mark four times on another fixed rope.
"Xian Wu!"
Finally, he took a new rope, made five gestures with a small stick, and drew a mark again.
Then, he put the new rope on the marks of the two fixed ropes, and asked people to adjust the positions of the two ropes until the three marks completely overlapped.
After this simple operation, a relatively standard right angle comes out.
Then, he used the same method to determine another right angle and fixed the rope.
In this way, as long as the corresponding ropes are of the same length, the four corners of the house can be guaranteed to be right angles.
After the outer ring was fixed, Jiang Xuan used four more ropes to fix the inner ring of the foundation.
"Lime!"
After finishing the rope, the two prisoners followed Jiang Xuan's order and began to spread lime along the rope.
When digging the foundation, it is impossible to move the ropes, so spreading the lime line is a very important job.
After the lime line is spread, even if the rope is removed, as long as you dig according to the lime line, you can dig out a relatively standard foundation.
Jiang Xuan watched them finish spreading the lime and the lines were relatively straight, so he nodded with satisfaction.
"Excavate!"
Jiang Xuan personally took a handful of bones and dug out one corner according to the lime line.
Others also took tools and dug hard.
Because there were many houses built, they were relatively spacious, and the tools were relatively backward, so the excavation of the foundation took three days to complete.
After digging the foundation, Jiang Xuan no longer needs to keep an eye on the rest, because some members of the Teng tribe have already learned how to build this kind of mud brick house.
Use stones to build a foundation, mix mud, add grass and straw, use molds to make mud bricks, and then build walls, columns, and roofs...
The people of the Vine Tribe have mastered this series of crafts quite skillfully, and sometimes they can sum up their experience and make continuous improvements.
After living in this world for a long time, Jiang Xuan summed up an experience, that is, never underestimate the wisdom and learning ability of tribal people.
Being poor and backward does not mean they are stupid, it just means they have no chance to learn.
When the Vine Tribe built the trading area house, external trade did not stop.
Outside the vine wall to the south of the Vine Tribe, there is a piece of flat land close to the doorway. Several sheds are set up on the flat land. A few reed mats are spread inside the sheds, and some goods are placed there. It is a simple trading area.
Tourists near the Vine Tribe like to come here to do business.
Because Jiang Xuan strictly restrains the warriors in the tribe, they must not commit robbery in the trading area, otherwise they will be severely punished.
When tourists come here to trade, they don’t have to worry about their things being robbed, and they can exchange for what they need.
As time goes by, it spreads from one word to ten, and if any good thing is picked up by nearby tourists, they will take it and trade it.
In one of the sheds, a tourist walked in hesitantly and took out a herb.
"How much food can this herb be exchanged for?"
In the shed, the Vine tribe warrior sitting on the reed mat picked up the herb, looked at it, and then picked up two bowl-sized round potatoes from the ground and said: "This herb can only be exchanged for two round potatoes. You can exchange it for two."
Not changing?"
The tourist's eyes lit up and he said in surprise: "Change, change..."
"Okay, I'll take the herbs and give you the round potatoes."
The Vine tribe warriors stuffed round potatoes to tourists and then collected the herbs.
The tourist held the round potato and smiled happily. It was his first time to do business in the Vine Tribe, and he did not expect it to go so smoothly.
"Wait..."
Just when Yuri was about to leave, the soldier stopped him.
The smile on the tourist's face froze, and his movement to walk out stopped.
Could it be that the people of the Vine tribe regretted it and wanted to take their things back?
The tourist turned his head with difficulty, stuffed the two round potatoes into his tattered animal skin clothes and hugged them tightly, stammering: "Is there anything else?"
The Vine tribe warrior could tell what he was thinking at a glance, so he showed his teeth and smiled kindly.
"Don't be nervous, I just want to tell you that it won't be long before the Vine Tribe will establish a real trading area, a big one."
"Grain, salt, animal skin clothing, weapons, pottery, tools, everything can be traded. If you or your friends can still find good things by then, you are welcome to come and trade."
After hearing what the Vine tribe warrior said, the tourist breathed a sigh of relief, then nodded like a chicken pecking at rice, and then left as if running away.
The Vine tribe warrior didn't care either. He had seen many tourists like this. He was very timid and would be frightened by the slightest movement.
However, there are a lot of tourists, and they can often find some good things in the forest and bring them here in exchange for some food or animal skin clothing.
Jiang Xuan specifically asked for the promotion of the new trading area. In the recent period, all tourists who come to trade will be informed.
In this way, when the new trading area is completed, there will be no need to worry about no customers coming.
The Vine tribe warrior sat on the reed mat and continued to wait patiently for the next person to come to trade.