Li Shimin was a little surprised, he didn't expect Li Su to spend so much effort to come up with so many good things to please him, in order to change a fief? Zhengzhou is a good place, among the many sons' fiefdoms, only Li Su is the closest to Chang'an, is he still not satisfied?

Thinking of this, Li Shimin's face was a little gloomy, and after waving away Yuwen Hu and the guards around him, he took Li Su to take a walk on the martial arts arena and asked: "Liulang, the matter of the fief has been decided before, and now the palaces of you and several other princes have been built in the various state capitals that have been sealed, and the location of Zhengzhou is good, why do you want to change?" ”

It is not a simple matter for the prince to divide the seal, not to mention the sacrifice, the selection of the title and the like, and the state capital that has been sealed must also be prepared, so although it has not been officially divided, but Chapter 116 Father, you have the whole world in your hands In fact, the princes already know where they are going to be divided.

"Father, Zhengzhou is indeed a good place, not only is it a big city, but it is also close to Chang'an, so it is convenient for the sons to visit you and your mother at any time, but the sons have their own plans, and they don't want to be under the wing of your father for the rest of their lives." Li Su also put away his usual hippie smile and said seriously.

"Oh? As a father, I want to know, what are your plans? Li Shimin was curious and a little disappointed, and he, as a father, suddenly found that the son in front of him had really grown up, and he no longer wanted him to arrange everything for himself, but already had his own ideas and plans.

What makes Li Shimin feel even more rare is that Li Su dared to boldly put it forward in front of him, this kind of courage and courage is what he values the most, among the other sons, even Li Chengqian, who is the crown prince, and Li Tai, who is his favorite, even if they are dissatisfied with their own arrangements, but no one dares to bring it up, and they will only do it according to their own arrangements, relying on this alone. Li Su was far superior to his brothers.

"Father, the son has a thing, I want to ask my father to look at it, but this thing has a lot to do, so I want to ask my father to go back to Chapter 116 Father, you hold the whole world in your hand and look at it." When Li Su spoke, he involuntarily touched the small box in the sleeve of his robe, whether he could convince Li Shimin or not depends on this thing.

Li Shimin saw Li Su's rare serious expression, and he was even more curious. At that moment, he took Li Su back to the Liangyi Palace, and asked everyone to withdraw, leaving only their father and son in the hall.

Li Shimin sat behind the bookcase, and Li Su stepped forward to stand in front of the bookcase. I saw him take out a small box from the sleeve of his robe, and after opening it, there was a thick stack of silk cloth inside, Li Su carefully took out the silk cloth from it, and then bowed down and offered it with both hands: "Father, please see!" ”

Li Shimin curiously reached out and took it, opened it, and found that there was a strange painting painted on the silk cloth, the whole figure was like a lantern, and several strange patterns were painted on the 'lantern'. Each piece of the pattern is also marked with words, such as Asia, Europe, Africa, America, etc., and the blank space is written what words such as Pacific and Atlantic.

Intuitively, Li Shimin thought that this was a map, but he thought about the state capital of the Tang Dynasty, but he did not find such inexplicable names as Asia and Europe. He even thought about the place names of several surrounding countries, but he still didn't have any clue, and finally could only raise his head and ask Li Su: "Liulang, what is painted on this?" ”

"Father, what you hold in your hand. It's the whole world! Li Su replied pretending to be mysterious.

"The whole world?" Li Shimin's brows furrowed, and for a while he couldn't understand the meaning of Li Su's words.

"Father, do you know how big the world we live in? What is the end of heaven and earth? Why the sun rises in the east. But it fell from the West, and it was reincarnated day after day, year after year? Li Su asked three questions in a row, if he wanted Li Shimin to believe that this world map was real, then he must first let him understand that they lived on a sphere, not the round sky as the ancients thought.

Li Shimin didn't expect that Li Su would discuss with him this kind of mysterious and mysterious problem in his opinion? It's just that his expression became a little strange, and he asked rhetorically, "Oh? So why do you say? ”

"That's because we live on a sphere and ......"

"I've known this for a long time." Before Li Su could finish speaking, Li Shimin suddenly interrupted, and at the same time, a trace of disappointment appeared on his face.

"Poof~" Li Su almost vomited blood, he had prepared a lot of words, put the facts and reasoned, and planned to open Li Shimin's eyes, but he didn't expect that people would know that the earth was round, and it was a matter of course, could he also have crossed over?

"Father, how do you know?" Li Su asked weakly, holding back a bunch of words in his heart, not vomiting blood, but also holding back internal injuries.

"Nonsense, of course I know, as early as the Warring States Period, I put forward the Hun Tian Theory, as long as you have read some books, who will not know this?" Li Shimin said angrily, Li Su doesn't like to read, and this is also the place where he dislikes Li Su the most, but Li Su doesn't learn and has skills, which makes him angry when he wants to be a father.

"Hun Tian said!" Li Su almost slapped himself after hearing this, he had learned it in the textbooks of junior high school in his previous life, but he didn't even think about it, and what he didn't expect was that this doctrine would spread so widely. Didn't the ancients all have a round sky? When did you even play with such a high-tech thing?

"Ahem~, father, what you are talking about is the heavens and the earth like chickens, this doctrine is actually wrong, of course, it can't be said to be all wrong, the saying that the earth is as round as a chicken is yellow, is still true, but the sky and the sun, moon and stars are not as explained by the armillary theory...... "Although I was shocked by the heavens, Li Su, as a modern person, of course it is impossible to admit defeat, so I simply began to talk about the heliocentrism and the nine planets of the solar system, anyway, I have to shock Li Shimin from the knowledge first, Otherwise, the following words are not very easy to say.

Li Shimin listened to Li Su's explanation, and was a little unimpressed at first, after all, the Hun Tian Theory has been developed for so many years, and many celestial problems can be explained by the Hun Tian Theory, but Li Su said that the Hun Tian Theory was wrong, which made him think that Li Su was lying. However, with Li Su's reasoning and evidence, and even the problems that cannot be explained by the Heavenly Theory can be easily found in the doctrine put forward by Li Su, which makes Li Shimin a little dumbfounded, and begins to listen carefully to Li Su's explanation, and as his thinking deepens. He felt more and more that the doctrine proposed by Li Su was indeed a step further than the Hun Tian theory, and it was also closer to the essence of this world.

Li Su's mouth was dry, and when he saw Li Shimin's solemn expression, he was also very proud in his heart, and finally calmed down the emperor's father. Picked up Li Shimin's tea and drank a few sips, and then said: "Father, whether it is the Hun Tian or the son's son, they all admit a little. That is, the earth we live in is spherical. ”

When he said this, Li Su stretched out his hand and pointed to the very non-standard world map, and said: "Father, please see, this is the whole picture of the sphere where we live. The above continents are the land, the blank space is the ocean, and the place where our Datang is located is this Asia. ”

With Li Su's guidance, Li Shimin found that on the largest piece of land in the middle, there were some very shallow lines marked, outlining a piece of area, among which the area with the widest area in the east, which was very consistent with the territory of the Tang Dynasty. Looking at the surrounding area, Tubo, Goguryeo, and the Western Regions can all find corresponding locations.

Seeing the whole world for the first time, Li Shimin felt both novel and shocked, but when he saw that the territory of the Tang Dynasty only accounted for about one-third of the entire Asia, he frowned. Li Shimin and even the entire Tang Dynasty have always believed that they are the Heavenly Empire and the largest country in the world, but when he saw this world map, Li Shimin found out. It turned out that this world was so big, there were seven pieces of land alone, and Datang only accounted for one-third of one of them. This made Li Shimin, who has always thought that Lao Tzu was the best in the world, a little unacceptable.

Seeing Li Shimin's somewhat stunned expression, Li Su immediately guessed that his self-esteem was hurt when he saw that the world was so vast and Datang only accounted for a small part of it.

So Li Su hurriedly explained: "Father, don't look at the whole world so big, but in fact, except for Asia where we are located and Europe next to it, all other continents are still in the ignorant period of drinking blood, and even countries have not yet appeared, and in Asia and Europe, there is only one Roman Empire that can compare with our Tang Dynasty in terms of economy, politics, culture, etc., that is, the 'Great Qin' in the ancient books." ”

Li Su said, stretching out his hand and pointing to the Mediterranean region of Europe, in fact, he didn't know the specific area of the Roman Empire, but he knew about that area, but he knew a little about the history of the Roman Empire, and then said: "When our China was still in the Qin and Han dynasties, the Roman Empire was strong for a while, but later it was divided into two countries, of which the Western Roman Empire has perished, and the territory has been invaded by others, and now only the Eastern Roman Empire remains, and the situation is also very bad. In the past, it was invaded by Persia and other surrounding countries and nations, and now Persia is declining, but there is a big food army in the surrounding area, which not only beats Persia very badly, but also has constant friction with the Roman Empire, and sooner or later a big war will break out. ”

"I know Persia, but what kind of country is the Great Eclipse?" Li Shimin listened to Li Su's explanation, but his eyes were getting brighter and brighter, especially for the things around the Roman Empire, and the Great Food had just been established a few years ago, and it had not yet reached Li Shiwei's ears.

"Father, the country of Dashi is very special, they are founded on religion, believe in a religion called Islam, the country is theocratic and religious, and the army is also very strong, although it cannot be compared with my Tang Dynasty and Rome in terms of culture, politics and economy, but militarily it is a opponent that is not weaker than the Turks." Li Su reminded that the later generations of Dashi also fought with the Tang Dynasty, but unfortunately due to various unfavorable factors, the Tang Dynasty was defeated, and since then it has lost the right to speak in Central Asia, and even in the following dynasties, it has not been able to get it back.

"Hahaha~, the stronger their combat power, the better, after pacifying the Central Plains for their father, they destroyed the Turks, and now there are only Goguryeo and Tubo left, the two second-class opponents, I feel that life is boring, I didn't expect that in the extreme west, there are so many powerful countries, one day, I will definitely lead the army in person, let them know the sharpness of my Tang Dynasty!" Li Shimin roared arrogantly, today he got the gunpowder weapon offered by Li Su, and he was worried that Goguryeo was too weak and would have no place to use it in the future, but he didn't expect Li Su to immediately find him a few strong opponents.

"The father is wise and powerful, and the son admires him very much!" Seeing Li Shimin so arrogant, Li Su immediately stepped forward and slapped his ass, but he laughed secretly in his heart, Datang is still far away from the Great Food, I don't know if the Year of the Monkey can only be met, Li Shimin's wish to fight with the Great Food Army is estimated to be a bit hanging.

After learning about the situation in Asia, Li Shimin asked about the situation in other continents, this Li Su did not know much about the situation in other continents during the Tang Dynasty, and could only talk about it according to what later generations knew, Africa is better, there is an Egypt to talk about, and then he talked about some black Africans, and the Americas talked about Indians, and other continents also talked about some human customs, which opened Li Shimin's eyes.

"Rokuro, where did you know all this?" After Li Shimin listened, he suddenly glanced at Li Su suspiciously and asked, these are not poems and songs or inventing a few new things, like the astronomical and geographical knowledge that Li Su talked about just now, if it has not been taught by a special person, no matter how smart a person is, it is absolutely impossible to know these things out of thin air.

Li Su knew that Li Shimin would ask this, so he had already thought of a countermeasure, deliberately hesitated, and then said: "Father, some time ago, in order to find the formula for glass, Erchen once offered a reward to the Hu merchants in Chang'an City, and one of the Hu merchants from Persia offered a Kunlun slave who could make glass, which allowed Erchen to make glass, and he also sold the astronomical and geographical knowledge just now to Erchen, for which Erchen paid a total of 2,000 yuan. And this map of the world was also drawn by Erchen under his guidance. ”

When Li Su spoke, he deliberately made a distressed expression, as if he was not worth the two thousand yuan he paid. His words are half-true and half-false, and that Hu Shang does exist, and this kind of lie is the most difficult for people to distinguish. And the reason why Li Su dared to say this was because after being beaten and intimidated by Li Yong, that Hu Shang had already left Chang'an with his family and returned to Persia more than a month ago, so he was not afraid that Li Shimin would find that Hu Shang to confront him.

"Oh? How can a businessman be so talented? Li Shimin was still a little skeptical.

"Father, although the son does not know the identity of the other party, but looking at the other party's speech and demeanor, he is definitely not an ordinary businessman, I originally wanted to recommend him to my father, but he was reluctant to serve in the court, and then the son went to look for him again, but found that the other party was no longer there, and I don't know if he is still in the Tang Dynasty." Li Su strives for perfection, and he is very immoral to shape a money-greedy businessman into a great sage who is hidden in the city.

"It's a pity, it's a pity that I can't use such a talent, and I'm not guilty!" Li Shimin heard that the other party was nowhere to be found, and immediately sighed in disappointment, he didn't doubt Li Su's words, and offered a reward for making glass, Li Shimin also knew very well, because the price of the reward was too high, there was a royal history to tell Li Su to behave extravagantly, for which he also reprimanded Li Su.

"Huh? By the way, didn't you just say why you changed the fiefdom, how did you go to the world map while talking? Li Shimin, who was sighing, suddenly remembered that he had just patronized the matter of asking about the world map, and the reason why Li Su changed his fiefdom had not yet been said!!