Datang: Time travel in two months, wait online, hurry up!

"People need firewood for cooking, and if they want firewood, they have to go to the forest to chop firewood. People who live in the city buy firewood that has been chopped by others."

"However, the firewood burns thick and smokes, and it is time-consuming and labor-intensive to cut firewood manually. The cost of burning firewood is also high. In addition, excessive cutting of firewood will reduce the number of trees and affect the environment and ecology."

"So, the landlord can get out the briquettes and add a coal stove, which solves the problem of burning firewood, and can also form a coal industry. The profit is not low!"

"Lighting a fire is also a problem. The people of the Tang Dynasty usually use flint to start a fire, but it is too troublesome and the efficiency of making a fire is very low. The owner can get the matches out, and then sell the matches and make a lot of money!"

Li Ke watched everyone's lively discussion, thinking while watching.

Someone said it was right, "food" is actually firewood, rice, oil, salt, sauce, vinegar and tea!

These seven words almost cover the fields related to diet in people's daily life.

It can be said that as long as these seven characters are solved, there will be basically no problems in the diet and life.

Then he saw everyone's discussions and suggestions about 'chai'.

In ancient times, cooking was done by burning wood, after all, there was no natural gas in ancient times.

Moreover, people at that time did not have the technology to deal with impurities in coal, so coal could not be used for burning fire.

If he understands the cleaning of coal and the production of briquettes, he can get out briquettes more than 1000 years in advance after traveling through the past!

At that time, people don't need to chop firewood for cooking, and just use briquettes directly!

Compared with firewood, honeycomb has many advantages.

More convenient and safer, the fire can be controlled in size and so on.

The most important thing is that for urbanites who are inconvenient to cut firewood, the price of honeycomb coal will definitely be lower than buying ready-made firewood!

Easy to use and cheap!

It is conceivable that as soon as honeycomb coal is launched, there will definitely be a very large market.

As for the cost of honeycomb coal, it mainly comes from raw material coal.

If it is modern, he will either spend huge sums of money to contract a coal mine and mine it himself.

Either go directly to buy mined coal and make it into honeycomb.

But it all comes at a cost, and it's not cheap!

And what happened after he traveled through the past?

He is the honorable Prince of the Tang Dynasty, the third prince of His Majesty the Emperor!

In the whole world, could it be that Wang Tu, the whole world belongs to his Li family, which coal mine does he like to buy for 0 yuan?

As long as he remembers the locations of those large and small coal mines before traveling over, he can make these mines his own in minutes.

Even if some coal mines are owned, the number of coal mines in his memory is large enough for him to use.

So for him, the cost of honeycomb coal is very low, and it can definitely sweep the market at an extremely low price!

Someone also talked about matches, and this idea also caught Li Ke's eyes.

The ancients used flint to make fire, that is to take a piece of flint and a piece of metal to knock and collide with each other to generate sparks and then ignite the fire.

But this way of starting a fire is too inefficient and cumbersome.

Even if you can't start a fire with a lighter like now, you should at least use matches!

Take out a matchstick, stroke lightly on the matchbox, and the flame will burn with a bang.

Isn't this way of making a fire delicious?

He doesn't even need to think about it, as long as he gets the matches out in Datang, it will definitely be a product with explosive sales!

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Chapter No.17 The whole earth is the territory of Tang Dynasty!

"Honeycomb and matches will be two important industries after I travel through the past!"

He immediately picked up the pen and drew seven thick trunks on the big tree representing 'food'.

Then on one of the trunks representing 'chai', add a few branches.

On these branches, he wrote down 'honeycomb coal', 'coal cleaning and processing technology', 'distribution map of open-pit coal mines and large coal mines', 'match technology' and so on.

"After firewood is rice. For rice, you should pass first, and just bring regular rice seeds."

"Indeed, the yield of conventional rice seeds with a yield of 10 shi per mu is five times that of the original rice with a yield of 2 shi per mu, which is enough for the common people all over the world to eat."

"At the beginning of the Tang Dynasty, the population was not large. As long as the conventional rice seeds are popularized, it will definitely be enough to eat, and there will be a lot of food in stock."

"The upstairs are all southerners? We only pay attention to rice. We in the north like to eat pasta, so we must grow wheat!"

"Indeed, I wanted to say before that the yield of wheat per mu in the Tang Dynasty was about 2.5 shi, and the modern wheat seeds can reach about 9 shi, which is also a 3-4 times increase!"

"Rice and wheat are enough to eat in a short period of time, but if the world is peaceful for a long time, the population will increase sharply, so we need to reclaim more arable land, and the Quyuan plow and the drum cart must be assembled!"

"It is necessary to form a fleet of ocean-going ships as soon as possible to bring back local crops from all over the world to plant, such as sweet potatoes, peppers and other crops that Datang does not have."

"Your layout is still too small. Even if the seed production brought by the landlord is several times that of the original, the production is still constant."

"It is known that the land and production are constant, but the population is growing rapidly, so what should we do when the population exceeds the food production?"

"So, instead of thinking about these things, it's better to use a powerful army to occupy more land, so that we can have more food!"

"As long as the speed of occupying land keeps up with the speed of population growth, then we can truly guarantee that the people will not go hungry!"

The discussion on "rice" is somewhat different from firewood.

Because regardless of the north and the south, everyone has to use fire for cooking, so there is no difference between briquettes and matches for everyone.

However, due to the problems of food culture and habits, netizens in the south naturally focused on discussing issues about high-yield rice seeds.

The northern netizens must be discussing the issue of high-yield wheat seeds.

It's like the netizens in the north have to eat dumplings during the festival. The dumpling skin is made of wheat flour. How can you make dumplings without wheat?

However, netizens in the south do not eat dumplings during the festival, nor do they have the habit and culture of eating dumplings. Their diet is mainly rice.

But these are not problems, just differences in small categories, the main body is still food, the difference is not big.

The problem is that as time goes by and the population grows rapidly, even with a high yield of seeds, there may still not be enough food to eat.

Therefore, a large amount of cultivated land is required to maximize the use of the land.

At this time, the Quyuan plow and the bobbin cart are needed.

Compared with the Zhiyuan plow in the early Tang Dynasty, the Quyuan plow is less labor-intensive and more efficient, which can speed up the progress of land reclamation.

The bobbin car is a water conservancy facility. It does not need artificial water diversion. It only needs to dig a ditch and build a bobbin car by the river, and the water can be directly introduced into the field through the bobbin car.

Some people also suggested to set up a fleet of ocean-going ships as soon as possible, and go overseas to bring some crops that Datang did not have.

This is indeed feasible, because although Datang has a vast territory, it actually doesn't have many things!

For example, the output is very high, reaching 3000 kilograms of sweet potatoes, but Datang did not have them. At that time, only South America had them.

For example, peppers, a very popular crop, are also in South America.

The only way to obtain these crops is to form an ocean-going fleet.

There is even an irritable old man who thinks that increasing food production and cultivating more land is false!

For example, directly through a powerful army, to conquer pieces of land in the world.

Let the local people use the local land to help Datang grow food!

As long as more land is conquered than the population grows, the common people will never go hungry!

This can be regarded as stealing the colonial concept of Europe before!

"But I like the idea!"

Li Ke smiled slightly, he quite agreed with this idea.

Land has been a key factor in determining the rise and fall of dynasties since ancient times!

When the new dynasty was first established, the forces in the world underwent a reshuffle, and a large amount of land became unowned.

The new dynasty distributed these lands to the common people, so that the common people had land to plant and food to eat, so the world was stable and the hearts of the people were gathered together.

But as time goes by, a natural and man-made disaster, such as a flood or a drought, can make the fields lose their harvest.

But the imperial court doesn't care whether your fields have no harvest or not, the tax that should be collected cannot be less.

At this time, the common people had no crops, not even a bite to eat, so where did they get the food to pay taxes?

Ordinary people could not resist this risk, and in the end they could only sell their land to gentry and landlords, so that they would not have to pay taxes.

Natural and man-made disasters have caused more and more common people to sell their land, which has led to more and more land for the gentry and landlords, and less and less land for the common people.

Until the end, the common people all became tenant farmers of the squires and landlords, exploited by the squires, and finally could not survive, and peasant uprisings began.

Most of the dynasties have been caught in this unsolvable endless loop.

The reason why such an endless cycle is formed is because the area of ​​cultivated land is constant, while the population is constantly growing.

If the growing population has no land to grow and no food to eat, they can only revolt.

Therefore, if we want to solve this problem, we can only do it according to the idea of ​​that person just now.

That is to use a powerful army to occupy more land and distribute these newly occupied land to the newly increased population.

In this way, the territory of Datang will become larger and larger, and the population of Datang will increase in a positive cycle!

If this development continues, the entire earth will become the territory of Datang, and all the people on the earth will be Datang people. It is only a matter of time!

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Chapter 18 Control the entire grain and oil market!

Historically, Britain has tried to do the same.

Using huge fleets and sharp weapons, they have turned many parts of the world into their colonies.

Use the local land and indigenous people to help them grow food, produce materials and so on.

At its peak, British colonies spread across all continents, and no matter how the sun turned, it could always shine on British colonies.

Because of this, Britain had a nickname at its peak, the 'Empire on which the sun never sets'!

But colonies are just colonies after all, not real rule and assimilation, so they will lose control after a long time, and they will not be long-term and stable.

Once there is a change in the mainland, the colony will be in turmoil and out of control.

Just like the Central Plains Dynasty in history, when it was strong, the surrounding small countries were respectful and regarded the Central Plains Dynasty as a kingdom of heaven.

Willingly regard the Central Plains Dynasty as the suzerain state, and honestly act as a subordinate state.

But once the Central Plains dynasty is weak and in chaos, these dependent countries will start to jump up and down, and even have some ambitions.

And why in history, some places and people that did not belong to the territory of the Central Plains Dynasty were completely integrated into the Central Plains Dynasty for generations after they were occupied by the Central Plains Dynasty?

Even including modern times, the huge Chinese nation is composed of dozens of ethnic groups.

Every nation recognizes itself as the sons and daughters of the Chinese nation from the bottom of their hearts.

This is the power of national culture!

Colonies can only limit people's bodies, but culture can assimilate people's minds!

"After occupying the land, a large number of people must be relocated to live there, and then spread the Tang culture locally, and completely assimilate the local indigenous ideas!"

"In this way, it will only be three generations, and there will be no such thing as local aborigines anymore, but the common people of the Tang Dynasty who live there!"

"China's national culture is the greatest weapon to conquer the world!"

Thinking of this, Li Ke's eyes became brighter and brighter, as if he had found the ultimate goal after traveling through the past!

Not enough food?

Then occupy all the arable land in the world!

"Good guy, it's true that I'm out of shape!"