Marshal Boyan dismounted at the door of his manor, and Princess Maria walked to the door with her stomach straight. In a few months, their child will be born.

Seeing her lover walking up the stairs, Princess Maria grabbed the arm of the handsome Boyan and said warmly, "You came back earlier than I thought. ”

"I'm going back to Baghdad. During this time of walking, you must not let the people outside come into contact with the people inside the manor. During this time, no matter how close you are, you should not be allowed to stay in the manor. The plague on the Egyptian side is getting closer and closer. If it weren't for the bad situation elsewhere, I would like to take you with me. ”

It is not easy to make Boyan Dashuai say such discouraging words, he has been to both ends of the world island and lived to be in his forties. In terms of the level of hygiene in this era, Marshal Boyan is definitely God's lucky one. Marshal Boyan himself is so convinced. Because he knows how lucky he is, Boyan knows very well how fragile life can be.

"Okay." Princess Mary replied gently. She could feel Boyan's concern, this 'little friar' would always be someone to be trusted and relied on in the eyes of Princess Maria.

"I'll go back to Jerusalem first."

"Can't take a break and then leave?"

"I went to the craftsmen to make the equipment. For our estate. ”

"Go early and come back early."

Looking at the handsome back of Boyan, Princess Maria couldn't help but gently caress her bulging abdomen. She also had children after marrying into the Ilkhanate, but the children died. In such an era, even princes face such tragic things like ordinary people. Whether it was the Eastern Roman or the Ilkhanate royal family, everyone would explain it with the phrase 'this is a divine arrangement'. Then let time dilute the pain.

The one who really used her knowledge to fight the disease, Princess Maria had only seen Boyan alone. Caressing her abdomen and feeling the subtle reaction of the child in her belly, Princess Maria felt very happy.

Marshal Boyan urged the horse back to the team he had left in the distance, and continued to escort several epidemic prevention personnel of the Great Song Dynasty to Jerusalem. Historically, before the opening of the Suez Canal, the Eurasian continent was connected to Africa. The part of the continent that connects the two continents is called the Sinai Peninsula. To the north of the Sinai Peninsula is the former kingdom of Israel and the recent kingdom of Jerusalem. Mongolia is now the master of Sinai and Jerusalem, which was supposed to be a springboard for the Mongol conquest of Egypt. Now it has become the front line of the Mongol fight against the plague.

When it was dark when he entered the city, Marshal Boyan immediately sent troops to find the local Jewish and Arab craftsmen who made exquisite handicrafts. According to the Mongol rules, the craftsmen on both sides knelt first to listen to the training. Marshal Boyan doesn't like to talk, so this matter is naturally handed over to the steward who is in charge of this kind of thing.

The steward was a Mongol, and he had long been accustomed to condescending to look at the Semu man kneeling on the ground. It's still busy in the middle of the night, and the steward's voice is a little angry, "I'll give you the drawings, and I can make them before noon tomorrow, and I will reward both sides." If you can't do it before noon the day after tomorrow, you will kill on both sides. From the morning after tomorrow to noon the day after tomorrow, whoever makes it first will survive. Do you understand? ”

Both Arabs and Israelis have understood that the Israelis have long understood how to deal with a real power like Mongolia after thousands of years of wandering. The Arabs were not good at this, and when the craftsman heard of such a terrible result, he plucked up his courage and said: "Sir, is it okay if we don't participate?" ”

"Yes." The Mongolian steward replied. After saying that, he said to the people next to him, "Drag them out and cut them down." ”

The Arabs knew who had destroyed the Arab Empire, and when they heard this, they immediately pounced on the steward's leg and shouted, "I beg my lord's mercy, we will do a good job." We'll do a good job. ”

In fact, the steward also knew that when it came to making handmade products, the skills of Mongolian craftsmen were not reliable. The best craftsmanship is naturally Han Chinese craftsmen, Arabs can also use it, and Israelis can barely use it. Now there are no Han Chinese craftsmen here, so Israeli craftsmen can only compete with Arab craftsmen to complete the work. It is not efficient to rely on slaves alone, and the competition between life and death can always achieve very good results.

The craftsmen on both sides didn't know what the Mongolian master was going to hand over to them, and they were also very shocked after looking at it carefully. It was an object that seemed to be a hexagonal cylinder fastened to a hexagonal cone, and it was not difficult to do so, but it was difficult to have an observation opening sealed by a fine net.

Boyan didn't wake up until the morning the next day. After just running to the edge of the Sinai Peninsula for so many days, he felt so tired that he didn't want to get up at all. Forcing himself to stand up, he slowly stretched his limbs and felt the various feelings of exhaustion transmitted by his body. Boyan Dashuai was very emotional, he had begun to get old.

"Dashuai, the thing is ready!" The steward was already waiting outside at this time, and when he learned that the handsome Boyan had gotten up, he immediately came to report it.

It was a flytrap framed with a wooden stick, wrapped in paper, and left a small observation opening. The steward took the square flytrap and excitedly told the marshal Boyan, "This is the method that the Arab craftsmen have come up with." They felt that since the thing had to be burned in the end, it would be a waste of time and materials to make it round. ”

Such an evaluation made the handsome Boyan couldn't help but nod, and the Arab craftsmen had a very good opinion. Then the marshal ordered: "Hang it in a place where there are many flies in the city and see if you can catch flies." ”

Waiting for the steward to leave, Boyan's eyes fell on the drawings provided by the Song people who claimed to know how to prevent the epidemic. The things on those drawings are made of relatively fine bamboo strips, and they are full of the feeling of the Great Song Dynasty at a glance. Delicate, delicate. However, this thing obviously consumes more effort, that is, the Song people can make it relatively quickly. In addition, there is no shortage of bamboo in the Great Song Dynasty, which can be made from local materials.

In the afternoon, the steward brought in the goods of the Israelite craftsmen. There are also highlights in the things of the Israeli craftsmen, "Dashuai, the Israeli craftsmen think that which net can be used with copper mesh, so that after burning the cage, the copper mesh can be recycled." ”

“…… Whip them ten lashes. Boyan replied indifferently. It's nice to be able to recycle, but it's a thing that is placed everywhere, and if anyone knows that there are copper parts in these nets, they will definitely be targeted. Where is there so many people to take care of it without losing it.

Mongolia pays attention to utilitarianism and practicality, and begins to experiment when things are in hand. If the Mongols knew what kind of opposition the Zhao Guanjia proposed to make such an instrument to catch flies, they would probably be dumbfounded. Those literati quoted scriptures and couldn't wait to find reasons for opposing them from ancient books from thousands of years ago.

The Mongols were quickly dumbfounded, and seeing that the cage was filled with flies in less than a day, Boyan Dashuai did feel a shock in his heart. He had thought that he would need to use a fly swatter or something like that to get rid of flies, but he never expected that such a simple small appliance could be so effective. In addition to ordering the craftsmen in the city to start work with all their might, Marshal Boyan also went to meet the 'epidemic prevention experts' of the Song Kingdom, and he opened his mouth to get straight to the point, "What to do with other pests besides flies?" ”

Hearing this, Yang Congrong's heart returned to his stomach. Trained in diplomacy, Boyan's words prove that flytraps also play a role here. When Yang Congrong was a child, flies were difficult to eliminate. They fly fast and are alert, and humans may not be able to kill them. Flies reproduce so fast that it really can't be solved.

When Zhao Jiaren came to power, he ordered the mass manufacture and use of flytraps in the city, which the literati initially opposed. Think it's a waste of money. When a cage full of flies was gathered and burned, the literati were horrified and quickly came up with a new theory.

If there are fewer flies in the city, flies from other places will migrate to the city. Instead, it makes more flies in the city. This kind of completely contemplative inference is already good in various theories of the same period, Yang Congrong still remembers that some people were very worried when he was a child, thinking that such a large-scale killing of flies would cause the anger of the fly god or plague god, and send disasters to punish the world.

There are even a few guys who don't know what is going on in their heads and claim that the Zhao Guanjia will be punished for killing hundreds of millions of living beings every day.

At that time, Yang Congrong couldn't help but ask the teacher worriedly in the school, "What if the flies' parents come to take revenge?" ”

The teacher did not criticize Yang Congrong, but just pointed to the cage and told Yang Congrong and the classmates, "The parents of those flies are also in the cage." Don't be afraid of their retaliation. ”

For children at that time, these words can help them get rid of their fears. Even now, many years later, when it comes to flytraps, Yang can still remember the situation at that time.

"Mosquitoes can't be expelled with flytraps, only mosquito coils and stuff. Keep the inside of the house clean, swallows and other birds eat mosquitoes. Get some cats and catch small animals like mice. It is also a good way to eliminate the chance of germ transmission. Yang calmly recounts what he has learned from books.

"Everybody has to take a shower. Wash your hands before eating and after using the toilet. There must be a clean source of water, and there must be sewage discharge. These can help with cleansing. Others didn't want Yang Congrong to play an expert alone, and they also followed up to say some knowledge points that they could still remember. After going through the exam, these people are able to remember something.

"Is there no other way?" Boyan said indifferently. Although the tone was no different from usual, Bo Yan was actually very disappointed in his heart. I've seen flies crawl through all sorts of filth and onto food, leaving a faint disgusting trail. Boyan was very satisfied that he could easily solve this problem, and he thought that other problems could be solved so cheaply. I didn't expect the plans proposed by the Song people to be so strange, and the cost was not small.

"We all used this method in the Great Song Dynasty, and the entire Hangzhou was almost demolished and rebuilt."

"Wouldn't those cats be used for witchcraft?"

People on the side of the Great Song Dynasty had heard similar problems in Constantinople, and when they saw rats everywhere, they thought that the European view was really strange. Yang said calmly: "Use cats to do witchcraft? Never heard of it. ”

"Taking a bath hurts your energy, doesn't it?" Even people like Boyan Dashuai are not completely immune to the heresies of those water-scarce areas.

"We have heard such a saying in Eastern Rome. It is said that bathing hurts the body, and it is also said that Western Rome perished because of addiction to bathing. Public baths in Rome are a tradition, and when there were public baths, the Romans went to war and turned the entire Mediterranean Sea into a Roman inner lake. It's the same public bath, and the bathroom before it is stumped is not so different from the bathroom after. Obviously, the later barbarians did not have the ability or technology to maintain the Romans' urban water and sewer systems, and they said such things out of jealousy when they remembered the comfortable bathing life of the Romans. Yang Congrong is engaged in intelligence gathering, and after experiencing a lot at this time, he feels that life and death can be put aside to a large extent, and the whole person's thinking seems to be suddenly enlightened. At least what I had heard in class was now able to figure it out and say it.

Marshal Boyan is knowledgeable and capable, but there are no cultural people around, especially cultural people who know history. So he was affected by some arbitrary statements, and now after listening to Yang Congrong's words, he only felt that he was completely convinced, and he had no way to deny it. This is not a common thing for him. The marshal asked, "You mean to say that the Romans were more capable than the barbarians?" How could it be destroyed by the barbarians? ”

"The Romans were once proficient in construction, but also in martial arts. By the time they are destroyed, they may still be proficient in construction, but they will no longer be proficient in martial arts. Perhaps the Romans at that time were not even proficient in construction. Their own decay does not mean that their predecessors are incapable. When he said this, Yang calmly felt a little proud in his heart, and the Great Song Dynasty was also like Rome, which was bullied by the barbarians. But the will of heaven was indecisive, and the Zhao official family supported the country at the time of its demise, so everything was completely different. So Yang Congrong couldn't help but say a few words for Rome.

"Since you say so, I will give you a map, and you will design a map for me according to what you have said. Whatever you need, just say it. "Marshal Boyan didn't want to debate with the Song people, he always thought that this kind of air-to-air debate was meaningless. No matter how much you say, it's all about solving problems. Since these Song people are so confident, let them design a very good manor to prove themselves. Boss Yan also needs such a design.

Just when several 'epidemic prevention experts' in the Great Song Dynasty began to put pen to paper and design the manor. The Song companions who had been able to leave finally rushed back to Constantinople. Seeing the familiar port, many people suddenly burst into tears and couldn't cry. After nine deaths, they realized how precious it is to be safe.

Among them, the embassy staff hurried back to the embassy, but learned that the ambassador was not there, and he took the personnel to investigate the manor of the Eastern Roman emperor. These men hurriedly sent a message to the ambassador, who was in the countryside a few dozen miles away from Constantinople, where the Roman emperor had a estate.

Based on the measurements, a drainage culvert was identified for the estate. The function of the culvert is to discharge all kinds of domestic sewage outside the manor to maintain the hygiene of the manor. The ambassador thought that the Eastern Roman Emperor did not place a large number of flytraps in Constantinople, but he did not believe this. As a result, he saw a flytrap in the manor, and many flies were caught in it. Only then did the ambassador realize that His Majesty the Emperor did not want to spend money on sanitation in the city.

Just as he was comparing the Great Song Emperor and the Eastern Roman Emperor in his heart, the ambassador received news that the envoy group, who had thought that he had already taken the ship, had returned with nine deaths. Now the ambassador could not sit still, and reluctantly stayed here for another half day, and the next morning he hurried back to Constantinople with his people.

After listening to the tearful accounts of the fleeing personnel, the ambassador did not rejoice that his prophecy was correct. He sensed a great threat looming. If such a plague had begun to spread in Egypt, a city like Constantinople would probably not have had a chance to avoid it. At this point, the best thing to do is probably to run away. But where to run. If you fail to communicate with the Great Song Dynasty, it is not wise to rush through the territory of Mongolia. But the plague will not wait, is it really going to go around the South Zhanbu Continent?

The ambassador was thinking about all kinds of thoughts, and for a moment he had nothing to say. He didn't know that at this time, the Zhao Guanjia had learned from the Ministry of Rites that communication with Eastern Rome had been completely cut off.

Zhao Jiaren and Xiong Sheng both frowned. The two did not want to leave those people in Eastern Rome to fend for themselves, and some of the more than 1,000 people were indeed hired by the Japanese state, but there were also many people who were highly valued by the Great Song Dynasty. Moreover, Zhao Jiaren already has the idea of withdrawing from Europe, so he simply cannot accept these people waiting for death in the local area.

"Official, can we only rely on the Mongols? But we have recently killed a number of Mongols in Lingxia and Sichuan. When Kublai Khan learned of this news, would he still agree to our request? ”

At the beginning of 326, Zhao Jiaren made it clear that he would recover Lingxia and the occupied lands in Sichuan this year. With the Type 22 rifle, the battle has taken on a one-sided edge. The Great Song Dynasty was still a traditional means for the non-Han people in these areas, although they were more civilized than the Mongols, but the Mongols never wanted to compare with the Great Song Dynasty who was more civilized. They have a strong vindictive attitude towards blood feuds.

"This sea route is definitely impassable!" Zhao Jiaren's fingers tapped helplessly on the Sinai Peninsula. If there were thousands of enemies here, Zhao Jiaren would not be so helpless. If there are 10,000 Song troops in battle, what can be done with 100,000 Mongol cavalry or Mamluk troops. But when the enemy is the plague, Zhao Jiaren has no choice. The quality of the plague vaccine is so bad that even if the human body is vaccinated, it will be ineffective within a year. This is also a problem in the medical profession in the 21st century. Zhao Jiaren had learned how to treat the plague, so he knew that with the current level of pharmacy, there was no way to treat it.

"Do you want to go south to Zhanbu Continent?" Xiong Shang found that there seemed to be only one way.

"No!" Zhao Jiaren shook his head, "It seems that we can only rely on the big triangle route." ”

Xiong Sheng was stunned, he had never heard of the Grand Triangle route. But if Zhao Jiaren can say this term, there must be something unusual about it.

The Great Triangle trade, also known as the "Black Triangle Trade", which began in the 16th century, saw European slave traders carrying salt, cloth, rum, etc. from their own countries, and in Africa they were exchanged for slaves along the so-called "Central Route" across the Atlantic, and in the Americas they were exchanged for plantation products such as sugar, tobacco, and rice, as well as gold, silver, and industrial raw materials. Between western Europe, near the Gulf of Guinea in Africa, and the West Indies in the Americas, the shipping route roughly forms a triangular shape, and is also called the "black triangle trade" because it is trafficked by black people. It lasted 300 years.

When the British made a lot of money on this route and finally had the strength to say something human, the 'dung pickers' of the time wrote: The trade was so inhumane that for every pound of sugar in Central America that the British ate two ounces of human flesh.

It is not only the profit-seeking nature of capital that can facilitate this trade, but also a great deal of natural factors. The triangular circulation composed of the Canary Cold Current, the Guinea Current, the North Equatorial Current, the Mexican Current, and the North Atlantic Current provided extremely favorable shipping conditions for the "Black Triangle Trade", which made the slave traders smooth sailing on the outbound, medium, and return journeys, and the speed of the slave trade was accelerated. The suitable climatic conditions in the Americas and the relatively abundant gold and silver mineral resources have enabled the plantation and mining industry to develop rapidly, generating huge profits, which are the main driving force for the entire black triangle trade, and also objectively provide favorable geographical conditions for the "black triangle trade".

Although the Great Song fleet had already rounded Africa, it was only a voyage for geographical discovery. The reason why Zhao Jiaren traded with Europe was originally intended to be the abundant labor force of Europe. I think they might have something to trade. For the black brothers in Africa, Zhao Jiaren has no intention of engaging in the slave trade, nor does he have the delusion of making money from the black brothers.

At this time, Zhao Jiaren only hoped that the quality of the Great Song ships could withstand the wind and waves of the Atlantic. Then Zhao Jiaren drew a route out, first through the intelligence network, through the two river valleys to deliver messages to the people of Constantinople.

Then let their fleet sail to Spain, the triangular circulation composed of the Canary Current, the Guinea Current, the North Equatorial Current, the Mexican Current, and the North Atlantic Current, provided extremely favorable shipping conditions for the "Black Triangle Trade", so that the slave traders had a smooth sail on the out, medium, and return journeys, and the speed of the slave trade was accelerated. The suitable climatic conditions in the Americas and the relatively abundant gold and silver mineral resources have enabled the plantation and mining industry to develop rapidly, generating huge profits, which are the main driving force for the entire black triangle trade, and also objectively provide favorable geographical conditions for the "black triangle trade".

The first stage was from Europe to the south, and the slave ships followed the ocean current to Africa, one is the Canarian cold current, which is located on the northwest coast of Africa. Buy slaves here and then continue the second stage of the journey, from Africa to the Americas.

Black slave ships arrived in the Americas, and blacks were again sold into slavery in mines or plantations. Just like the voyage, the slave ships sailed along the current, which was the North Equatorial Current, which was a wind-swept current that crossed the Atlantic Ocean and reached the West Indies. Finally, the ships laden with gold, silver, and raw materials returned to Europe, which was called the "return journey". On the return trip, the ship still sailed with the current, and the ocean currents were the Mexican Warm Current and the North Atlantic Warm Current.