Sweet potatoes are also known as sweet potatoes, sweet potatoes, yams, sweet potatoes, sweet potatoes, red potatoes, threads, white potatoes, golden potatoes, sweet potatoes, red potatoes, pillow potatoes, etc. Common perennial dicots, herbaceous, with slender vines and creeping stems. Tuber, anaerobic respiration produces lactic acid, the skin color is white or red, the flesh is mostly yellowish-white, but there is also purple, in addition to eating, it can also be used to make sugar and wine, and alcohol.

There are so many aliases, and they will never come from the same place, the same place, called the same kind of item, at most only three or two names. However, no matter what it is called, it is actually the same species.

Liu Yi has always been a little suspicious, sweet potatoes may not only come from South America to China. It is suspected that Huaxia originally existed, but it was not known, or it was not valued by the world, it was not discovered, and it was widely recognized, promoted and passed on. Or, it has always been there, but it is only used as a medicinal herb, and no one recognizes its real practical value, the value of being cultivated and eaten as a staple food.

This, for example, gunpowder, was first developed in Huaxia, but it was not discovered its true value for a long time, at the beginning, it was only used as a material for practicing Dan, and I did not expect that gunpowder could change the way of war in the world.

At least, among the other names of sweet potatoes, yams, should be a species that has existed in China for a long time.

Of course, this is just a kind of reasoning by Liu Yi, including a common sense reasoning of Li Shizhen's record of sweet potatoes in the "Compendium of Materia Medica". It is uncertain whether Dahan has the same species as sweet potatoes.

Therefore, when it is necessary to go to the South Seas, Liu Yi is more convinced that an indigenous people in the South Seas have a sweet potato species. Because. In terms of climatic seasons, the South Seas region. It seems to be closer to South America, and there is no reason why South America has it and South Seas does not. And there is. In the almost pure tropical rainforest of the South Seas, in this ancient era, when their productivity was extremely low, how would the indigenous tribes living in the mountains and forests live if they did not have a food species that was very easy to grow and harvested quite easily? By what is passed down from generation to generation?

Liu Yi decided that no matter what, he must look carefully in Nanyang to inquire.

The first place to search for a destination. Naturally, it is the region of Vietnam that is closest to the territory of the Han Dynasty.

However, at this time, Vietnam was not as uncivilized and barbaric as Liu Yi imagined. In fact, Vietnam is indeed an independent country and race with a long history.

Here, we should not deliberately demean Vietnam because of the grievances between China and Vietnam in later generations.

Vietnam, as evidenced by archaeological sites. In ancient times, 400,000 years ago, traces of human life have been found on the land of Vietnam. Archaeologists have found Paleolithic sites (300,000 years ago) in Vietnam, represented by the Dushan culture (first discovered in Thanh Hoa Province) and the Son Wai culture (first discovered in Phu Tho province and named after the Son Wai site), Mesolithic sites (10,000 years ago), and the Hoa culture (named after the site first discovered in Hoa Hoa province in the 20s). The remains of the Neolithic period are represented by the Pak Son culture that was first discovered at the Pak Son site in Lang Son Province 5,000 years ago. According to the ruins. Archaeologists have concluded that during the Stone Age humans learned to raise livestock and grow rice.

From these materials, we can see the history of human development of the Vietnamese. In fact, it is not later than the development of human beings in China, and it is almost in a state of synchronization.

But, later. Vietnam, on the other hand, was heavily influenced by China. Because, later to the post-modern Qingming period of the Republic of China period of more than two thousand years. Vietnam is basically in the status of a vassal state belonging to China, and is greatly influenced by Chinese culture.

How so? Vietnam. From 257 BC to 207 BC, it was once known as the Ou Kingdom and also known as the Anyang Kingdom.

During the war of the Seven Kingdoms of China, the Qin State destroyed the ancient Shu Kingdom. The ancient Shu Kingdom is the enlightened dynasty, and the turtle spirit is the founding king of the ancient Shu country, ruling Shu for hundreds of years. When Qin destroyed the ancient Shu Kingdom, the then ancient Shu prince Kaiming Pan fled all the way to the northern region of Vietnam in later generations, established the Ouluo Kingdom, and set the capital city as the ancient Luo City, and he called himself the king of Anyang. His kingdom once expanded to Han, Guangxi, Yunnan and other regions.

In other words, since the war of the Seven Kingdoms of China, Chinese culture has begun to influence Vietnam, and the real masters of Vietnam have become Chinese Han Chinese.

However, soon, the Ou Kingdom was destroyed by Zhao Tuo, the martial emperor of the Nanyue State who was ordered by Qin Shi Huang to enter Lingnan and established in the Lingnan region. Since then, Vietnam has truly become a vassal state of China. Soon after, in 111 BC, the Kingdom of Nanyue was destroyed by the Western Han Dynasty, and Vietnam was naturally not spared. The Western Han Dynasty set up nine counties such as Jiaozhi in Vietnam, and later in the Eastern Han Dynasty, Jiaozhou was set up in Panyu, Guangzhou, and officially named Vietnam as Vietnam, which has been used to this day, and Vietnam is also directly under the jurisdiction of Jiaozhou, and has been governed by the Chinese regime for more than 1,000 years.

Later, until the end of the Tang Dynasty, Huaxia suffered from the troubles of foreign races, which made China divided, and the Vietnamese region also rebelled and became independent, but it was soon suppressed, and the Jiaozhou Governor's Office was set up in Vietnam, which was later renamed the Governor's Mansion of Annam.

During the Five Dynasties and Ten Kingdoms period, Cochin rebelled again, causing Vietnam to slowly break away from the rule of China and officially establish itself as a country, but it has always existed as a vassal state of China.

Well, I won't talk about how it was later. However, the current Vietnam is actually a very serious area of sinicization, because Vietnam is now actually equivalent to an administrative county of the Han Dynasty.

At this time, Vietnam was actually still under the rule of the Han Dynasty.

Strictly speaking, Vietnam at this time should be a power territory of Jiaozhou Taishou Shixie.

And these situations, Liu Yi is not very clear. After all, during the Three Kingdoms period, Shixie was actually a soy sauce player, and there was not much ink about him in history. He didn't even take part in the chaos of the Three Kingdoms period. When Sun Quan seized Lingnan, he attached himself to Eastern Wu and was worshiped by General Wei and Marquis Long.

But what is less known is that Jiaozhou, under the governance of Shi Xie, has a pretty good historical account, even much better than Yizhou. It is alleged. Jiaozhou is a paradise during the Three Kingdoms period. The residents were prosperous and enjoyed peace for more than 40 years. Many people from the Central Plains also took refuge in Jiaozhou in the south. It brought advanced production technology and economic culture, and promoted the prosperity and development of Jiaozhou. Shi Xie loves academics. Subtle learning, and open-minded, generous, courteous corporal, so hundreds of Central Plains celebrities came to take refuge in him, among which the more famous ones are Liu Xi, Xue Cong, Cheng Bing, Xu Ci, Liu Ba, Xu Jing, Huan Ye, Yuan Hui, Mu Zi, Kang Seng Hui and others, there are Confucianism, Taoism, Buddha, can be said to be full of talents. It was during this period that Mu Zi wrote the important book of Buddhism "Mu Zi's Theory of Confusion".

Jiaozhou in this life. In fact, there has not been much change, and there have been no basic changes due to the arrival of Liu Yi, so at this time, Jiaozhou, including Vietnam, the order of life, and the lives of the common people are actually quite good.

When Liu Yi ordered the New Han Army to land on a town off the coast of Vietnam. I didn't see what I imagined, those who were not clothed. Shirtless, frightened, frightened, panicked natives. Instead, I saw some troops no different from the army of the Han Dynasty guarding this city gate, which was actually a city with Chinese characters written on it, Donglin City.

Seeing such a situation, Liu Yi was really scratching his head, and it didn't seem to match the situation in his impression.

What surprised Liu Yi even more. Liu Yi was suspicious, and when he approached the city gate, the Vietnamese generals at the head of the city. actually shouted Chinese to Liu Yi.

"Under the city, is it the army of sailors of the New Han Dynasty and the New Han Army? Who is the general below? ”

"Huh?" When Liu Yi heard the generals above, his tone seemed to be a little respectful. I couldn't help but sigh.

"Please don't get me wrong, general, it's Kaiyangtai below. He is the defender of Donglin City, serving Lord Shixie. Your Excellency has an order, if there is a New Han Dynasty New Han Army Navy landing, I will not be offended, so ...... I just want to ask clearly, is the general of the New Han Dynasty? ”

Is there such a good thing? Liu Yi was even more surprised, he rushed all the way along the coast, and it didn't seem to alarm the government in the Lingnan region. This Jiaozhou is too shou Shixie, and an order has been passed here so soon?

However, surprise is surprise, Liu Yi still responded: "I am Liu Yi, the Taifu of the New Han Dynasty, I don't know what you have to say about General Kaimingtai?" ”

"What? Taifu Lewy? ”

"Quick, open the gates! Welcome to the city! ”

Kaimingtai seemed to be extremely shocked, he actually forgot to talk to Liu Yi, shouted loudly, turned his head and ran down the city.

After a while, the east gate of Donglin City, facing the sea, creaked open, and Kaimingtai slapped his horse out, followed by several civil and military generals out of the city together.

"Taifu, I'm too late to greet you, and I ask Taifu to calm his anger, why don't I ask Taifu to go into the city to rest, and then there will be a banquet to catch the wind and wash the dust for Taifu, how about it?"

Kai Mingtai got off the horse, knelt in front of Liu Yi, and said respectfully.

Seeing this enlightened Tai like this, Liu Yi was silent, and he didn't know if he was cheating for a while.

Seeing that Liu Yi's expression was a little hesitant, Kai Mingtai hurriedly said: "Taifu, please don't be surprised, in fact...... In fact, Lord Shixie has always been concerned about the situation in the Middle Earth of the Great Han Dynasty. When the army of the naval division of the New Han Dynasty went to sea, there was a fast horse to report to Lord Shixie. ”

"That, I don't know your head of the family, Lord Gongshixie, and I have never had any contacts, but now, why do I have to be so polite?" Liu Yi asked the doubts in his heart.

"Oh, that's a long story. Taifu, please rest assured, we will never dare to have any intentions against Taifu, if Taifu still has concerns, you can ask Taifu to lead the army into the city, but the last general has only one request, and I hope that Taifu's military horses will not disturb the people in the city. ”

"Haha, since General Kaimingtai is so sincere, there is no need to lead the army into the city, however, there are still many questions below, after entering the city, please General Kai, be sure to answer them." Liu Yi didn't necessarily have to attack this Donglin City, so he also opened his mind and said with a smile.

"Definitely, definitely!" Kai Mingtai nodded repeatedly.

Liu Yi secretly looked at Kaimingtai and felt that it didn't seem to be cheating, so he nodded, beckoned Gan Ning and other generals to lead two thousand men and horses into the city with him. It is impossible for Liu Yi to really not bring people into the city, after all, he is not familiar with the place, so he has to be more careful.

At this time, the season is when the lychee is ripe. When Liu Yi came to this Three Kingdoms era, he really hadn't eaten lychees.

In the Yamen of Donglin City, during the banquet, Liu Yi tasted a few lychees sent by Kaimingtai, and asked: "General Kaimingtai, why don't you solve my doubts first." ”

"Okay, actually, that's ......"

Through Kaimingtai's narration, Liu Yi learned that the current Vietnam was actually still under the rule of the Han Dynasty, and he also knew some of the history of Vietnam before. What surprised Liu Yi was that this Kaimingtai was actually the descendant of the Kaimingpan who established the Anyang Kingdom.

In addition, Liu Yi also knew that in fact, since Vietnam became a county of the Han Dynasty, the Han court has always had military horses stationed in the Han region in Vietnam. Moreover, it is not only Lewy's current fleet that has reached Vietnam by water. For hundreds of years, there have been merchant and official ships of the Han Dynasty plying the coastal towns of Vietnam. It's just that in the past ten or twenty years, due to the civil strife in the Han Dynasty, there have been no official ships sent by the imperial court to reach the coastal towns of Vietnam, but there will still be some merchant ships coming and going.

And the reason why Shi Xie sent people to order Kaimingtai to meet the New Han Army early was that some merchant merchants who had discovered the New Han Army from afar learned about the situation, and only then did they have such an arrangement.

What made Liu Yi feel even more extraordinary was that he had actually been paying attention to the situation of the Han Dynasty, and he knew better that now Jiangdong Sun Ce was launching an attack on the Lingnan area, once he subdued the Shanyue people in Fujian and Jiangxi. The Jiangdong army accompanied by Sun Ce, who already belonged to the New Han Army, would inevitably attack Jiaozhou.

Shixie is very talented, at least, governing the place, favoring peace, and seems to be the best prince in the Three Kingdoms era in the entire history. And he is also very politically discerning, he knows that now that the world has become a general trend, his Lingnan will inevitably be no match for the New Han Army.

For Shi Xie, it was not easy for him to govern the Lingnan region in an orderly and prosperous manner, if all his hard work was ruined because of the war, this is not what he wants to see.

Therefore, Shi Xie, who is well aware of the current situation, is not as savage as Liu Yi imagined, but quite shrewd. He had long planned that once the mountains in the northwest and northwest of Guangdong could no longer become a barrier to his Lingnan Tranquility, he would simply return to the New Han Dynasty, and only in this way would it be possible to maintain the prosperity and stability of Jiaozhou.

Judging from such an intention, Shi Xie was indeed a shrewd and enlightened person. It is no wonder that in history, he is still or reused by Sun Quan.

After Liu Yi understood the whole story, he also had a great impression of Shixie in his heart. (To be continued......)