Another twenty years have passed.

Wen Rensheng's tribe had a population of 20,000.

"Your Majesty, are you still alive?" Little Wang Beibei ran over and asked.

He was dead, and he was reincarnated into a little ape and came to find him again.

"Hmm." Wen Rensheng wrote lightly, and then looked at a piece of glass. It was translucent and very turbid. There was still a lot of room for improvement before it was a real glass.

"Boss, when will you die?"

"Why ask this question?"

"Because I also want to be a king."

"Then you're overthinking." Wen Rensheng said angrily.

Little Wang Beibei looked at the glass in his hand angrily.

"What's the use of making glass? We have no place to sell it and no one will buy it. It's more reliable to make cement." Xiao Wang Beibei was obviously confused.

"With your little wisdom, for you to become the king, the tribe must collapse." Wen Rensheng said with disdain.

His wisdom allowed him to know early on the importance of glass making to historical milestones.

After all, in this primitive era, the real danger has not yet come.

And he had already prepared for those crises.

His physique is the pinnacle of human beings. Although he is not an ape, he can live for at least 150 years.

It's still too early for him to be reincarnated.

The average ape can only live up to 50 years.

He doesn't worry about lifespan.

Then the tribe encountered new problems.

Another tribe of barbarians came to attack.

Ask them to hand over half of the salt and grain.

This is obviously impossible, just start fighting.

After two years of fighting, the barbarian tribe was reduced to slavery.

They are not time travellers, they are all real primitive people.

This made the time travelers very happy and quickly evolved the tribal form into slavery.

Who doesn’t want to have a few slaves who can work?

Who wants to do housework?

Except for chefs, slaves filled every industry.

Those who farm, those who build roads, those who sweep the land, those who herd cattle.

Those who traveled through time focused on force.

The entire tribe subconsciously evolved towards the offensive Spartans.

But Wen Rensheng understood that Sparta was not a stable state.

Moreover, if you only know how to fight, it is easy to lose your true power.

Because as long as the other party flees a few times, your own society will collapse.

So he improved the social form in advance, allowing those people to still maintain the manpower allocation in the main industries.

For example, agriculture, handicrafts, and commerce all require human resources.

Build granaries, reservoirs, and deep cellars.

Explore the terrain everywhere, including building ships and going to sea to find other land.

In short, I will continue to open maps while making reserves.

Some people think that it is enough to live a small life with peace of mind, so why go to such trouble.

Wen Rensheng has only one evaluation of this kind of person: short-sighted.

Ten years later.

The real crisis has arrived.

After arriving, everyone was trembling.

It's cold, not scary.

Because this crisis is the Ice Age.

Animals fled one after another and migrated toward the warmer equator.

Heat and drought are better than cold.

Because if it's hot, it means there's enough energy.

Once you enter the glacier, you will be dead. The sunlight will be reflected and the climate will become colder and colder.

Until the movement of the earth's crust releases a large amount of heat and carbon dioxide, creating a new greenhouse.

And here they are already in the subtropics.

It's not too far from the equator.

Fortunately, Wen Rensheng had already made various preparations.

One is to move some people towards the equator to see if it is hot enough.

The second is to send another group of people to settle near an active volcano crater that has been explored.

Although we have to risk the volcanic eruption and be buried into the city of Pompeii, we can get through it for the time being.

"It's strange. There is still sunlight, so how can the earth get colder?" Little Wang Beibei asked in confusion.

"Of course it's because there is not enough carbon dioxide and there are too many green plants, which absorb too much carbon dioxide, thus weakening the greenhouse effect and triggering the Ice Age." Wen Rensheng casually gave a reason.

Of course, this is just a superficial reason. The real reason is the difficulty of creating historical nodes and is copied based on the disasters that occurred in history.

There have been many ice ages in history, and this is not fiction.

This also led to the premature demise of the Ming Dynasty.

"Can you survive in a volcanic area?" asked little Wang Beibei.

"There are hot springs in volcanic areas, and crops can be grown where there are hot springs."

"Then how will those of us left here survive?"

"We can grow mushrooms, cut down trees, and use wood to grow mushrooms. There are many plants that will freeze to death, enough for people like us to survive for a hundred years." Wenren said calmly.

At the same time, the migrating people, the vanguard, released the carrier pigeons.

It's also very cold at the equator, even colder.

Don't know what the reason is.

Their large army stopped and were rushing back.

On the other hand, active volcanoes are hotter and have many hot springs.

They can survive.

There are still many forests with green buds sprouting out, and they ask people from the mother tribe to migrate over quickly.

It's just that the volcano moves frequently and erupts frequently, with thick smoke billowing from it.

But Wen Rensheng did not move near the volcano, but only established ice tunnels in the two places.

Transport using sleds and ice tracks.

Transport wood from near the active volcano, as well as some grown vegetables and grain.

The temperature is getting lower and lower, and people begin to rely on fuel to live.

But Wen Rensheng stopped them.

Instead, they used the previously stored colored glass to dig out cellars and build greenhouses.

Let the tribesmen live in underground greenhouses.

Fortunately, in the past few years, everyone has been eating equally and drying the food.

Cereals and meat have become extremely dry and can be stored for 50 years.

Now that the temperature is low again, the storage time is longer.

Everyone eats very little every day to barely survive.

Wen Rensheng organized people to continue digging the cellar, and dug a very deep cellar.

Before, the land was too soft, so it was impossible to dig the cellar too deep, and water could easily be seen.
To be continued...