Today, Li Kuan's dependence on the system is actually decreasing.

However, this does not mean that he no longer needs it.

【Start the medical module!】 】

With this sound, Li Kuan found that there was a separate entrance on the exchange interface.

Birth, old age, sickness and death, no matter which dynasty, whether men or women, young or old, rich or poor, is a problem that everyone needs to face.

Although Li Kuan had also received the primary surgical skills rewarded by the system before, that thing was actually not very useful.

Nowadays there is a separate medical module, and that's completely different.

Li Kuan couldn't wait to "click" on this entrance and went in to see what could be exchanged.

Medical book!

Medical technology!

Medicine!

Medical!

What caught Li Kuan's eyes was actually the entrance.

However, this time, there were actually four entrances.

As the name suggests, medical books should be exchanged for various medical books; and medical skills, which are exchanged for various medical skills; As for medicine, it should be all kinds of medicines and prescriptions; The last medical equipment, this era seems to be not taken seriously, but Li Kuan, who is accustomed to seeing all kinds of medical equipment in later hospitals, is looking forward to it.

Li Kuan took a deep breath, looked at Wu Meiniang's somewhat puzzled expression beside him, and felt that he had to wait until he returned to his residence before slowly appreciating what could be exchanged for anything at each entrance inside.

Now, let's accompany Wu Meiniang, a great hero, first.

……

In the dead of night, Xiangyang City regained its tranquility.

The silver-white moonlight sprinkled in the courtyard, and Li Kuan stood in front of the window, and could clearly hear the crickets and frogs croaking everywhere outside.

A thick night filled a chic backyard, like a fresh breeze, filling all the scenes in the courtyard.

An apricot-yellow moon was already hanging high in the air, adding a glimmer of light to the night.

"A Thousand Golden Fangs? This book belongs to Dr. Sun, and it shouldn't have been written yet, so if it is redeemed, it should be very useful. ”

""Typhoid Fever Signs" and "On Babies", I don't seem to have heard much of this." Li Kuan muttered silently in his heart, and couldn't help but tap the introduction of these books, "The author, Qian Yi, a famous doctor in the Northern Song Dynasty, is good at pediatrics. It seems that this system is very generous this time. ”

"Shhh Li Shizhen's "Compendium of Materia Medica", this book has a great effect. ”

"Treatise on Warmth", "Human Anatomy", "Internal Medicine", "Hematology"...... I'll go, this system has amplified this time. ”

"Anatomy of Images...... There's no use for this thing. ”

"Basic Training Manual for Pharmacy Clerks", "Genetics", "Treatise on the Spleen and Stomach", ......"

After Li Kuan entered the entrance of medical books, he found that there were hundreds of books that could be redeemed, including classics such as "Compendium of Materia Medica".

This time, it made a fortune.

Wait a minute......

Li Kuan was happy for a while, but he found a problem.

Why do these medical books seem to be quite high in terms of redemption points?

And it seems that the closer it is to the medical books of later generations, the higher the points are redeemed.

This......

I was finally glad that the points broke through four figures, and my feelings were enough to exchange for a few medical books like "Internal Medicine".

That's too expensive, right?

However, this "Thousand Gold Fang" only needs fifty points, which is acceptable.

As for the "Compendium of Materia Medica", it is better to wait, two hundred points is a bit expensive.

The later masterpieces that can't move 500 points, or even 1,000 points, will be talked about later.

Li Kuan looked at the medical books on the exchange panel regretfully, and then looked at his points.

Look, I have to find a way to earn more points.

After returning to Chang'an, he simply opened a class in Guanshishan Academy to train case-solving talents, and I felt that Di Renjie should take a group of people to help him earn points.

Immediately afterwards, Li Kuan went to the entrance of medical technology to take a look, and most of them were exchanges for various surgical skills.

I really don't want to be a miracle doctor.

What caesarean section skills, finger replantation skills, wound suturing skills......

Li Kuan felt that this entrance to medical technology seemed to be a bit of a pitfall.

On the contrary, it was the contents of the medicine entrance that made Li Kuan's eyes light up.

Aspirin, penicillin, diazepam......

The three most classic drugs in the history of medicine can be found here.

The most gratifying thing is that in addition to exchanging finished products, you can also exchange production processes.

But......

It's still an old problem, and it's a bit big to spend points.

Li Kuanqiang endured the excitement and regret in his heart, and entered the entrance of the medical equipment to take a look.

This entrance did not bring much surprise and surprise to Li Kuan, it was all the exchange of some various medical equipment and the production process of these equipment.

Call~

At this moment, Li Kuan felt that this broken system had given himself a name called "All-round Talent System", which was finally a bit worthy of its name.

I just don't know if this time it is a medical module, and what module will appear next time?

It's something to look forward to.

……

"This bamboo leaf wine in Xiangyang has a unique flavor."

The rice is now waiting to be harvested, and Li Kuan has not done much other than to inspect the preparation of late rice seedlings in various counties in Xiangzhou.

After turning most of the Tang Dynasty, he had to see the first crop of rice enter the warehouse, so Li Kuan was ready to wait for the rice here in Xiangyang to be harvested before leaving for Chang'an.

In this way, there is still half a month in the middle, which is the time for Li Kuan to travel in the mountains and rivers, eat and drink.

"Lord Wang, I toast you. Starting tomorrow, the rice harvest in Xiangyang County will begin, and we will almost return to Chang'an. This time I was able to follow the prince to inspect the world, Mei Niang was very happy. ”

Wu Meiniang's amount of alcohol is also okay, although she has drunk a lot tonight, her face is red, and it is very tempting; However, the mind is still quite clear.

"It's hard for you to eat and stay overnight this way, I think you've lost a bit."

No matter how good the conditions are, the comfort level of this year's rush cannot be compared with staying in Chang'an.

"It's not hard, as long as you're with the prince, no matter how hard and tired you are, Mei Niang doesn't care."

I don't know if it's because the wine is strong, Wu Meiniang is obviously bolder than usual tonight.

may also be because she is worried that when she returns to Chang'an City, Li Kuan's energy will be focused on Cheng Jingwen and Xiaomai, so Wu Meiniang has become more anxious in her heart.

"The drunken beauty has a rosy face, and she doesn't forget to be delicate and shy and gentle."

Li Kuan couldn't help but jump out of this sentence in his mind, and read it out of his mouth.

"Lord Wang, Mei Niang is seventeen years old this year."

Wu Meiniang said this, but she almost didn't say it directly......

Li Kuan is not a saint, in this era when women are already generally mothers at the age of seventeen, Wu Meiniang's fruit is really time to be deliberately picked.

It's night!

Faint blue chest, the hair is even, and the fat is dark and fragrant. It seems to be Luo Luo green leaves, new weeping paulownia seeds, Yingying purple medicine, and a lotus room. Dou Xiaohanquan, the flowers turn over Ludi, and the two Wufeng are the most heartbroken. Add melancholy, with a touch of fine gown, that is, the red wall.

……

In the early morning, everything is silent.

A glimmer of light slowly shone in the eastern horizon, carefully soaking the light blue sky, and a new day gradually moved from afar.

Several unknown birds kept chirping outside the window, waking Li Kuan from his sleep.

[Trigger a new task, do you want to accept it?] 】

Li Kuan: ???

What's going on?

I just did something that a man would do, so why did I trigger a new mission?

"Accept!"

Li Kuan also has experience, but as long as this system assigns you tasks, you don't have a choice at all.

It's not so much whether to accept it as it is whether I need the system.

[The population of Datang has increased by 10 million! 】

A task that is simple and clear, without any ambiguity, makes Li Kuan frown.

A population of 1,000 people does not seem to be a lot by the standards of later generations.

Larger cities have more than this population.

However, you must know that this is Datang.

Even at its peak, the population did not exceed 100 million.

It is only the fourteenth year of Zhenguan, and although there is no census, Li Kuan estimates that the population of Datang is between 30 million and 50 million.

That's an increase of 10 million, but it's not that simple.

Li Kuan read a theory about population growth in later generations, saying that under "unhindered conditions", a country's population would double every 25 years.

This law, placed in the second half of the twentieth century, is basically in line with the situation.

However, if you do the math, you will find that there are few dynasties in history that have been able to conform to this law.

At the beginning of the Han Dynasty, the population was only 10 million, so by the beginning of the Tang Dynasty, the population had already exceeded 100 million.

Is this possible?

Does this correspond to the actual situation?

So why was this theory completely useless in ancient times?

In Li Kuan's view, the main reason is three reasons.

One is food production, which is the most constraining factor for population growth.

The second is the backwardness of medical technology, many babies die young, and the average life expectancy of people is very short.

The last one is war!

Endless wars, each hundreds of years to change the dynasty, all need countless white bones to fill.

"Lord Wang, what are you thinking?"

Wu Meiniang opened her eyes and saw Li Kuan looking at the top of the bed in a daze, and asked a little nervously.

Your own prince, won't you regret it after eating, right?

"Huh? Not...... It's nothing. ”

Suddenly hearing Wu Meiniang's question, Li Kuan had not yet woken up from the tasks arranged by the system.

"Mei Niang, how do you say you can increase the population of Datang by 10 million?"

"Huh?"

Wu Meiniang's face was blushing.

In her opinion, Li Kuan asked herself this question at this moment, and it seemed to ......

But it was the first time yesterday, and I can't ...... it anymore

"Lord Wang, Mei Niang is ...... now Now ......"

Hearing the voice of Wu Meiniang, who has always been smart and witty, Li Kuan couldn't help but turn his head and take a look.

However, seeing the blushing expression, Li Kuan immediately understood where the problem was.

"Haha, Mei Niang, look at what you're thinking. This king is asking, how to increase the population of Datang by 10 million, which is purely literal. In addition to Guanzhong Province, Datang is now sparsely populated, especially the states and counties in Jiangnan Province, the population is far inferior to Guanzhong, and population is the most basic condition for a country's strength. ”

"Mei Niang doesn't know, you know how to play tricks on people, prince."

Wu Meiniang rarely showed the appearance of a little woman, pulled the quilt on her head, and the whole person got into the quilt.

However, Li Kuan didn't really expect that Wu Meiniang would be able to put forward a plan with more insights than himself on this issue.

In fact, by the fourteenth year of Zhenguan, the population of Datang had already met many conditions for rapid growth.

On the one hand, the quyuan plough has been popularized for many years, and the tillage efficiency has been greatly improved; On the other hand, the cultivation of Nanyang rice has already begun to spread, and within a few years, Datang's rice production can double, even triple, or even more.

Datang already has the food base to feed a larger population.

Of course, after surviving the turmoil at the end of the Sui Dynasty and agreeing to the major state capitals in the world, Datang has entered a period of relatively stable development.

Although there is still a war every year, Hou Junji is still leading a large army to attack Gaochang in the desert.

However, large-scale wars can be said to have ceased since Zhenguan destroyed the Eastern Turks in the fourth year.

In other words, among the factors limiting population growth, the most important thing to do today is to reduce the infant mortality rate and increase life expectancy.

In other words, as long as the medical level of this era is improved, coupled with the conditions that Datang itself has, it seems that it is not so difficult to have a population of 10 million?

It just so happens that the system has also opened up the medical module, and it seems that everything has a reason.

Of course, this task, a year and a half, is enough.

This time, the system has given itself a long task.

Forget it, I will reluctantly make it difficult, and then pretend to be a wave of thirteen in front of Sun Simiao and others, and build the medicine of Guanshishan Academy into the top existence of Datang.

I just don't know if the rewards will be satisfying at that time.