Tang Jian was able to help Leng Feng 1 because he and Leng Feng were friends, but he also had to sue the emperor, because Leng Feng's action was really a little bigger!

After Leng Feng left Gaochang, he went to Shuzhong, which not only occupied a large proportion of the internal commerce of the Central Plains, but also foreign trade, which was also very important, because they often traded with Tibet.

It is very time-consuming to travel around Datang, and Leng Feng focuses on foreign trade, which means that they have to walk around Datang.

Grassland - Gaochang - Shuzhong - Lingnan - Yangzhou - Shengzhou.

By the time they had taken a tour, it had been three years!

After three years of travel, the four of them thoroughly understood the merchants of the Tang Dynasty and the commercial composition of various places.

This also makes Fang Xuanling and others full of confidence in the change of the taxpayer.

Today's Shengju is particularly lively, and the merchants who come and go are all dealing in one thing - Koreans!

Especially the women of Goryeo.

The six-year war in Goryeo caused many Goryeo people to wander into their homes, and they had to leave their hometowns and seek a way to survive in other places. Those on Gao Jianwu's side fled to Silla Baekje, and those on Yuangai Suwen's side fled to Datang.

Although it is inevitable to sell themselves as slaves when they come to Datang, they feel that it is better to be slaves than to die at every turn.

Zhang Jian, Marquis of Liancheng, received Leng Feng and others.

Looking at the bustling selling market, Du Ruhui couldn't help but say: "It's been six years since I fought, and I haven't won or lost yet!" ”

Zhang Jian smiled: "Where is it so easy, let's keep an eye on it here." Yuangai Suwen's strength is originally a little stronger than Gao Jianwu, as long as Gao Jianwu falls into defeat, we will exert a little pressure on Yuangai Suwen.

In this way, they can only keep fighting. At the beginning, they sat down to discuss and discuss whether they could die down, but after fighting for so long, it was no longer up to the two of them to have the final say. ”

Fang Xuanling said with a smile: "Let's fight, it's all cheap, it's a matter of dog-eat-dog!" ”

After leaving the human city and entering the Shengzhou Thorn History Mansion, after sitting down, Leng Feng asked Zhang Jian: "There was a person named Tang Jin before, how about coming to you?" ”

Zhang Jian smiled: "Just your proud protégé? Tut-tut, what a good seedling! He has only been in Shengzhou for a year, and he has established his own prestige. I sent troops to attack Yuan Gai Suwen to relieve Gao Jianwu's pressure, this guy is good, leading the troops to cross the line and go straight to Yuan Gai Suwen's lair, so scared that Yuan Gai Suwen collected all his troops to defend himself. Guess how many people he brought? It's just more than 500 people! ”

Leng Feng nodded, Tang Jin could have such a result, he had a hunch. Among the dozen or so graduates in his first phase, he was trained by Li Jing's Xiaozao. And Li Jing likes to win with surprise soldiers the most.

"What's going on over there?"

Zhang Jian took out a map, pointed to the map and said: "With the support of our Datang, the Su family is in high spirits, and they squeezed the forces of Tuigu to this place called 'Kyushu' to survive." A few years ago, Su Ijiro sent another wave of envoys to Datang, wanting to get our Datang technology, and the gifts were all gold and silver, and he also brought a large number of sterling silver for armor weapons. ”

Speaking of this, Zhang Jian couldn't help laughing.

The year before last, the imperial court established a hydraulic smelter, and the armor-making technology of the Tang Dynasty has grown by leaps and bounds, and many troops have replaced themselves with new armor. Those that are eliminated are naturally sold to the Japanese people at a high price.

One is willing to sell, the other is willing to buy, this business is doing comfortably!

Leave Shengzhou and return to Chang'an.

When the tall city wall of Chang'an appeared in front of them, everyone couldn't help but breathe a sigh of relief.

Most of the three years were spent on the road, and after three years, now it is the most active cold competition, and I just want to go home and stay, and I don't have to eat in the carriage and sleep in the carriage.

The news of Leng Feng and the others' return had already reached Chang'an, so when they arrived at the city gate, they saw Li Chengqian, who had been waiting there for a long time.

I haven't seen each other for three years, Li Chengqian has grown a little taller, and he looks like an adult.

Seeing Leng Feng, Li Chengqian arched his hand and said, "Master, after three years, can you still be healthy?" ”

Leng Feng twitched him.

Li Chengqian covered his neck and smirked, he knew that the master hated him for talking so politely, so he was just teasing the master.

"I haven't seen you for three years, how are your two brothers?"

Li Chengqian said: "Li Ke is still temporarily taking your position as the dean, as for Qingque..."

Speaking of this, Li Chengqian smiled bitterly: "Qingque has lost a lot of weight, and now he is dragging Gongyi Li to study what steam engine together, and the two of them wander around the pot of boiling water all day long, and their laboratory blew up once a few days ago, and Qingque was injured a little." Now his father is ordering him to recuperate, and he will wait for you to return to continue his research. ”

"Lost a lot of weight?"

This surprised Leng Feng very much, Li Tai is easy to gain weight, even if he doesn't eat much, he can't lose weight, but he has lost a lot of weight, which can only show that he is too serious about studying steam engines.

The principle of the steam engine Leng Feng told Li Tai that he could rely on those principles to study by himself, and Leng Feng was not surprised. However, without good enough sealing materials, it is difficult to succeed in the development of steam engines1.

"You go and tell him to stop for a few years, and wait for Lingnan rubber to come out and then study it? Why do you have to research now! ”

Li Chengqian nodded.

Wei Zheng walked over and asked, "Your Royal Highness the Prince, how are the corn and potatoes grown?" Why haven't I heard about the promotion all the way? ”

Li Chengqian smiled bitterly: "Zheng Guogong, how can it be so fast!" In three years, those seeds were spread all over Chang'an. The father ordered Chang'an to plant potatoes and corn around it, and it is estimated that next year, the planting range will be transmitted to Xianyang Luoyang, so that as long as it takes another three or five years, it will not be a problem to plant all over the Tang Dynasty. ”

Hearing this, Wei Zheng breathed a sigh of relief.

It's always heartfelt to return from home, Fang Xuanling, Du Ruhui and eldest grandson Wuji didn't even talk to Li Chengqian, and ran home.

In three years, Chang'an has been turned upside down, the original low bungalows are not visible, from the beginning of entering the city, there are more than two-story buildings on both sides of the main road, restaurants, shops abound.

"Tut-tut, in three years, it's become like this!"

Li Chengqian saw that the master was lamenting the changes in the environment, and couldn't help but say, "If you go to the Academy of Literature to see it, you will be shocked!" Chang'an is where there are more high-rise buildings, and on the side of the Academy of Literature, there were originally only hundreds of households, but now there are thousands of households. Recently, my father has been wondering if to make a separate county for the Wenyuan! ”

Oh time!

Time is enough to change a lot of things.