The reason why Li Shimin hurriedly called Li Yan to the palace was that the investigation results of the assassination of Li Yan finally came out. Although there was no definite evidence, the information fed back from all aspects and various signs of the suspects before the incident showed that the commander behind the assassination of Li Yan was Fan Yang Lu's family.

And they did this, just as Li Shimin analyzed at the beginning, through this incident, Li Yan was trapped in the battle for the throne and could not escape. At that time, they would take the opportunity to suppress industry and commerce. Unfortunately, Li Yan was not deceived, and all their calculations were left empty...

Although all signs indicate that this was done by the Lu family of Fanyang, even if Li Shimin mobilized all his strength, he did not get any substantial evidence. It can be seen that the other party handled it very cleanly and did not leave any handle at all. In this way, even if he knew it was the Lu family of Fanyang, he would have no way to deal with them, and even the emperor Li Shimin was not able to do it. After all, the Tang Dynasty was not a whip dynasty in later generations, because it could confiscate the family and destroy the clan with just a few words. If the emperor of the Tang Dynasty wanted to kill a minister, he had to be accused of being unforgivable, and at the same time he could produce reliable evidence, let alone deal with a large family that had been entrenched for nearly a thousand years.

After returning to the palace, Li Yan immediately told Wang An about this, and then asked angrily: "Fu Wang, what can you do to let me give Lu a little color?"

Wang An has been officially appointed as the King of the Qi Palace. After these days of maintenance, Li Yan could no longer see the embarrassment and haggardness when he first saw him. Instead, he was a kind of elegance and wisdom. After hearing Li Yan's words, he laughed and said, "Your Highness wants to take revenge on Lu's family? Actually, it seems that the last assassination not only wanted His Highness to be trapped in the prince's fight for the throne, but also it was also a revenge on Your Highness by Fan Yang's Lu family to you?"

"Revenge on me?" Li Yan was stunned after hearing this. He didn't understand what Wang An meant?

"Haha, Your Highness may not know that in addition to occupying a large area of ​​land, the tea making industry in the Tang Dynasty was almost entirely controlled by them. However, after His Highness came up with the method of stir-frying tea, the tea cakes made by Lu had no sales. The clan also lost a source of income. Although they later bought the patent for using tea stir-frying tea, it was too late, and the tea market had been divided up by Your Highness and others. The profits made by Fanyang Lu's now from the tea making industry are almost worth mentioning compared to before." Wang An said with a smile. As far as he knew, in addition to the income from the land, the Lu family in Fanyang had only two pillar industries, and tea making was one of them, but unfortunately it was abandoned by Li Yan without any intention.

Li Yan was also stunned after hearing this. He didn't expect that he would mess with the other party first. However, he was angry and couldn't control these things at all. He said angrily: "Even if I messed with them first? If you are not as skilled as humans, you will naturally be eliminated. Don't want to fundamentally solve the difficulties, but you came up with such a trick to plot against me. They are still known as the inheritance of poetry and books. I think they should be conspiring to pass on family!"

At this point, Li Yan remembered that when he was assassinated, he scared Wen Xin and Xijun and others very much. Especially at that time, Xijun was already pregnant. He was frightened by this, and I don’t know if it would have any impact on the development of the fetus. Thinking of this, he became even more angry and slapped the table hard and said, “Fu Wang, I can’t swallow this tone no matter what. Do you have any way to retaliate against Lu?”

"Haha, others may not be able to deal with the Lu family, but for Your Highness, it is extremely simple!" Wang An still smiled when he saw Li Yan's temper, "The main industries of the Lu family in Fanyang have three aspects. I won't talk about the land. The tea-making industry has been accidentally abandoned by Your Highness. In the end, the only one linen industry is left. When you hear this name, you must have known what to do, right?"

As Wang An expected, when Li Yan heard that the third pillar industry of the Lu family of Fanyang was actually linen, his eyes lit up immediately, and the anger on his face disappeared, instead turning into an extremely sinister smile. He muttered to himself: "Hehe, if there is a way in heaven, you don't go, if there is no way in hell, you break in, what's wrong, but he is a linen. Now I see how you die!"

The key to Li Yan's saying this is that the linen was on this linen. Before cotton cloth was promoted on a large scale, there were three main materials for the ancients to make clothes, fur, silk, and linen. However, the output of whether it is fur or silk cannot be compared with linen, and linen is also the cheapest among the three. Therefore, linen has been the main material for clothing for middle and lower classes for thousands of years.

Line cloth is mainly made of various hemp-producing plants, which are then woven into fabrics after being rubbed. However, the linen at this time is very unsolid and rough, and it is like a needle when worn on the body. In order to solve this problem, it is also necessary to sizing and pounding. Such linen is suitable for making clothes and wearing on the body, and it is strong and wear-resistant.

However, compared to the troublesome production, and the rough and hard linen cloth, Li Yan is currently building a textile factory, which produces better cotton cloth. Compared with the disadvantages of linen, cotton cloth has many advantages. It is not only soft in texture, but also strong and durable. Some clothes made of cheesecloths are enough for a person to wear for more than ten years. The textile of cotton is not as time-consuming and laborious as linen. At the same time, cotton can be woven into a variety of cloths, from coarse to fine, and the texture is fine and easy to color, so it is much stronger than linen cloth in both appearance and practicality.

In addition, Li Yan also knew that since the Song Dynasty began to promote cotton cloth, linen cloth gradually withdrew from the mainstream of fabrics. Few people wear linen clothes anymore, and at most they can only be made into linen bags for things. The linen bag that was rare in later generations is actually a type of linen bag.

So no matter from which aspect, it is definitely a trend to replace linen. Now Li Yan has partnered with the upstarts and major merchants in Chang'an City to build textile factories everywhere in order to make huge profits on cotton. However, Li Yan never expected that Fanyang Lu's family is the largest linen producer in the country. It is really a narrow road for enemies!

However, before Li Yan was happy for too long, Wang An said again: "Your Highness, the cotton textile factory you are building can be said to be the death talisman of the linen industry. If the Lu family of Fanyang loses the income of the linen again, the clan will definitely not be able to support it by relying on land and other small industries. At that time, it is said that the other party will decline by using your highness to do it, but there is a problem in the middle."

Since he had Wang An, the think tank, Li Yan has become much lazy. He is usually lazy to use his brains on issues. He just needs to ask him directly if he has anything, so he immediately said, "Please tell me, Mr. Wang!"

"Well, it's not a big problem, but the promotion time of cotton crops is still too short. Due to the production of cotton, we can only build textile factories in a few areas where cotton is grown more. With the amount of cotton fabric produced by these factories, it is definitely unlikely to completely eliminate the linen on the market. So the key to cotton cloth now is not in textile factories, but in cotton production." Wang An summarized his thoughts and then spoke.

Li Yan nodded after hearing this. This is a problem. Cotton yield will not be able to rise for a while. After all, even the best crops will take a certain amount of time to promote them. What's more, cotton is a cash crop and cannot be eaten as food. Many farmers only plant some in a small amount, and most of the land still needs to grow edible wheat, rice and other crops. Therefore, although the yield of cotton increases rapidly, it is still restricted.

The cotton yield could not be increased for a short time, and Li Yan used cotton to retaliate against the Lu family of Fanyang, but there was no effect for a while. This made Li Yan, who was eager to take revenge, feel a little impatient. He asked Wang An for other possible revenge methods, but the results were not ideal. Li Yan did not ask to uproot the other party at once, but at least he had to hurt them or even be in a slump. This would intimidate those families and let them see what happened to provoke him, Li Yan!

However, just when Li Yan was having a headache about this, a news came from the court that shocked him, and the news was related to the Turks.

It turned out that in the fourth year of Zhenguan, the Tang Dynasty sent troops to destroy the Eastern Turks, which not only pacified the north in one fell swoop, but also shocked the countries in the Western Regions. In addition, the civil strife of the Western Turks at that time, the control of the Western Regions was weakened, so many Western Region countries surrendered, which made the Central Plains dynasty once again open the door to the Western Regions after the Han Dynasty.

At the same time, the civil strife of the Western Turks became more and more intense. The Tang Dynasty seized the opportunity and intervened in this civil strife in the sixth year of Zhenguan. It was a pity that the Tang Dynasty chose the wrong agent. It turned out that a man named Yugushe, the son of a Khan who fled from the Eastern Turks to the Western Turks, began to rise, and defeated the Tang Dynasty's support Ashina and Russia, and even had the momentum to unify the Western Turks.

If it were just like this, the Tang Dynasty would not have had a big fight, but Yu Gushe was so blinded by victory. After controlling Gaochang, he established the gateway between the Tang Dynasty and the Western Regions, blocking the connection between the Tang Dynasty and the Western Regions, which means cutting off the land Silk Road that the Tang Dynasty attached great importance to.

As a result, the Western Turks and Gaochang aroused public anger. The Tang Dynasty was noisy, and most of them asked the court to send troops to reopen the connection with the Western Regions and restore the smooth flow of the Silk Road.

However, compared with the excitement of most court officials, Fang Xuanling and Li Jing and several important civil and military officials expressed opposition. Even Li Shimin, who had always been wary, was unsure of this matter and didn't know how to make a decision?

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Chapter completed!