Since ancient times, the needs of the people of Zhuxia for land have never been satisfied. Farming civilization will never dislike the abundance of land. Wherever the territory expands, the people will diligently reclaim their farmland, and they will never tire of it. As their king, Ji Er has an almost paranoid pursuit of leadership. After taking Northwest into his pocket, Li Er felt that in his life, in terms of martial arts, he had almost achieved fame. At this time, most of Tang's territories are surrounded by tall mountains that stretch for thousands of miles, or are places where the environment is dangerous and unsuitable for human survival. In fact, Li Er has long been satisfied. After all, the surrounding area is beyond expansion. But at the moment when he saw this world map hand-painted by Su Li, Li Er felt as if he had become a frog at the bottom of a well. Datang's territory "027" is vast? There is no place around to annex?

nonsense! For the whole world, Datang at this time is really a corner of peace! In Li Er's heart, the raging fighting spirit was rekindled. I will never allow a country bigger than Datang in this world! He did not suspect that the map was fake. Although he doesn't have a complete world map, there is a complete Tang Canbao map in the palace. In recent years, Datang's territory has continued to expand, and the geomancy maps have changed almost three times a year. Li Er has nothing to do when he is idle, his biggest hobby is to look at the map. He has long been familiar with the various details of the vast territory of the Tang Dynasty. In Su Li's world map, the Tang Dynasty is depicted in great detail, and the distribution of various mountains and rivers is exactly the same as Li Er's impression. Since Datang is real, it is impossible for other places to be fake. Moreover, with Su Li's character, it is impossible to make a fake map to fool the children, it is completely unnecessary! Thinking of this in his heart, Li Er was a little depressed. It suddenly occurred to him that he had received news some time ago that Su Li had organized a fleet to go to sea. Originally, he was indifferent to Su Li's matter. After all, acting requires a complete set, and he has already understood that Su Li has no ambitions for power. As long as I don't provoke him, the two sides can live in peace, and Su Li has also done many good things that benefit the country and the people. This person, as long as he thinks about it, there is actually nothing he can't overcome. Li Er lay flat...

But seeing the map in his hand now, Li Er finally couldn't calm down anymore. What is Su Li going to do with the fleet? At this moment, Li Er felt like a cat scratching his heart, scratching his heart and lungs. "I heard that Su Li sent a fleet to sea some time ago..." Li Er said with some hesitation. Seeing his appearance, Changsun Wugou couldn't help but sighed. "Shimin...I don't think you need to be like this..." The eldest grandson sighed. "Even if you don't regard Su Li as a courtier, he is still your son-in-law! Is there anything difficult to say between Weng and son-in-law? Why are you so secretive?" Li Er's face was a bit ugly, he opened his mouth, but he couldn't say anything. "Che'er told me that the Su Li School Disciple went to sea because Che'er came up with a novelty that lacked one key thing. Su Li's fleet is here to help Che'er find that thing." Speaking of this, Changsun Wugou shook his head and said with a smile: "A few days ago, didn't the Princess Mansion be in Bingzhou, and opened a coal factory? It's the kind of black stone that can burn. Che'er needs something. Li Er somehow settled down in his heart. He pretended to snort coldly, and said in a somewhat stiff tone: "The other things about the couple are good, but they spoil the child too much! For a small preference of the child What a waste of money!" 1 "Don't underestimate Che'er! Che'er told me that if the thing he made can be produced on a large scale, Datang may not need to use oxen and horses to pull carts in the future." Changsun Wugou was quite pleased. Said. Li Er put a face on his face, and said in a bad mood: "You can also believe the nonsense of the child. Although he said that Su Che was talking nonsense, after that night, Li Er became very concerned about the coal plant. The place in Bingzhou is the land of Longxing in the Tang Dynasty, and it can be regarded as the base camp of Ji Er's family. In that place, as long as Li Er is willing, he can pick up a bird flying in the sky to look at the parents. Naturally, the situation of the coal yard in the Princess Mansion cannot be hidden from Li Er's eyes. Of course Ji knew about coal. It can burn, and a small piece lasts for a long time. It's just that this thing belongs to minerals, and the output is not high... Although many have been found in the mountains of Bingzhou, there is really no need to mine them. It is neither copper nor iron, nor gold or silver. It is useless except for burning. But things that can be burned are everywhere, so why bother to waste manpower and material resources, and spend money to mine them? Therefore, this thing is only used by the people in places where there are open-pit coal mines. The scale of the coal plant in Princess Mansion is obviously not only for Su Che. Because the coal factory first selected open-pit coal mines, the production was very rapid.

In terms of transportation, Su Li invested a lot of costs. Soon, thousands of catties of coal were transported to Chang'an City. Originally, Li Er thought that Su Li might have to lose money this time. After all, coal is very heavy, and it will cost a lot to transport it from Bingzhou to Chang'an. Such costs determine that the pricing of coal cannot be cheap. But the price is so high that most people can't afford it. This is a vicious circle! However, the subsequent development of the matter surprised Li Er greatly. At the beginning, people were quite resistant to such things as coal. After all, the price of coal is much higher than that of ordinary charcoal. However, it was later discovered that although the price of coal is high, the burning time is several times that of charcoal. In terms of conversion, the use of coal is much more beneficial. So, it didn't take long for coal to quickly enter thousands of households. Since ancient times, food and clothing have not been separated. Three years ago, Su Li used potatoes and sweet potatoes to solve the food problem of the common people. This time, he directly used coal to solve the heating problem of the common people. Folks once again began to spread the legend that King Yongle was auspicious from heaven. Coal sells well, but it causes a strange phenomenon. The production of charcoal has decreased, and those who run the charcoal burning business have to do something else. Some people burn charcoal with wood containing a special fragrance to make "fragrant charcoal", which is specially sold to wealthy families. Unexpectedly, this kind of incense charcoal was widely praised once it was launched. Other charcoal-burning sites also followed suit. Soon, charcoal, which was supposed to be withdrawn from the market, became a luxury item for wealthy families. This caught everyone by surprise. .