There is no unnecessary introduction, and the reasons are explained in a few words.

Then, enter the topic.

Su Jianyang spoke slowly.

"At first, no one knew where they came from, and they just thought they were unknown species that appeared somewhere. The unique body structure of the alien species, and the pollution they emitted all the time, seemed to have opened the door to a new world, making the world crazy."

"It wasn't until half a month later that the first abyss crack opened."

"There are no powerful alien species. There are only second-order alien species that are not worth mentioning now. As if they had been discussed, cracks appeared in various countries at the same time, a total of 36 cracks."

"The aliens are not that strong. First-level aliens, ordinary bullets and artillery fire are enough to easily tear their bodies apart."

"But the scary thing about the alien species is not its strength, but the price, the cost of killing the alien species."

The tone of voice specifically emphasizes the word "cost".

And Su Jianyang picked up the chalk, turned around and wrote these two words on the blackboard.

"Anyone who kills a foreign species must bear a price, and this price is the unique contamination of the foreign species' body."

"In that era before extraordinary beings were born, even killing the weakest first-order alien species might result in consequences such as 'hand tremors', 'heart palpitations', 'asthma', and 'tinnitus'."

"More serious ones, fractures, temporary blindness, sensory confusion... On the battlefield, any price is enough to be fatal."

"And we humans can only reduce the cost, but we can never exempt it."

"In other words, even if a fifth-level strongest person faces tens of thousands of first-level alien species, even if he can kill tens of millions of alien species alone, he will be seriously injured or even die in the face of the accumulated cost."

Jiang You stared blankly at the figure on the stage.

"However, after people discovered this rule, they tried to use heavy weapons for long-distance suppression."

"The cost of first- and second-level alien species is not to cross such a long distance to bless people. Our world is relatively stable for the time being."

"It's just that as the number of cracks increases, the pollution that fills the world gradually increases, and the world has undergone tremendous changes without realizing it. Compared with humans, animals and plants are more susceptible to pollution and alienation, and the wild has become no longer safe.

."

"On New Year's Day of the 2nd year of the New Era, the Northern and Southern Capitals announced the establishment of large-scale gathering areas, and planned to gather residents from surrounding towns into the gathering areas in batches."

"In the fifth year of the New Era, people tried to enter the abyss, and the death rate was as high as 97. Da Zhou also learned about the existence of 'forbidden objects' for the first time."

"Relying on forbidden objects, stepping into the second level, and fighting against alien species, the Great Zhou Dynasty set off a wave of 'forbidden objects'. But at this point in time, Qi Ling awakened, and his own path to transcendence was still at the first level in ignorance, unable to be promoted.

"

"In the same year, fifteen small countries declared annihilation. No one is immune to this global crisis."

"In the 8th year of the New Era, relying on forbidden objects, the upper limit of extraordinary levels was further increased, and the defense line of the gathering area became more and more stable. And this group of people who became stronger through forbidden objects thought they had found the right direction, so they were also the 'dawn' of the Great Zhou Dynasty."

"In the 10th year of the new era, the conventional extraordinary route, which is now the mainstream extraordinary route, finally found the way to the second level."

"Also in this year, the Northern Capital Watching Gathering Center and the Southern Capital Dawn Gathering Center were officially established, becoming the only two first-level gathering centers in the Great Zhou Dynasty."

"In the next five years, major gathering places were established accordingly."

Nandu Dawn, a first-level gathering place??

This thing isn't quite right.

The Nandu recorded in the textbook...isn't it a second-level gathering place?

Level one, level two.

Two different cognitions constantly impacted everyone's thoughts in their minds, causing everyone's expressions to constantly change.

The content recorded in history textbooks is mainly based on ancient times, and the history of the modern century, and the content learned throughout the entire middle and high school study life, can only be compiled into half a history book.

It basically tells about the great famine, great struggle, and great migration under the attack of alien species.

The territory of the Great Zhou Dynasty was too huge, and all the small cities could not be defended, so they had to join forces to establish gathering places.

This results in the various gathering places being relatively dispersed.

So later on, the alien species became stronger and stronger. In order to unite together and prevent being defeated one by one by the alien species, the first, second, and several consecutive "great migrations" took place.

Finally, they gathered in the north and formed a northern defense line.

These are the "history" that everyone learns.

Jiang You naturally also knows this history.

It's just that since the last time he saw the dotted map in Uncle Lu's room, he was not sure how true or false this history was.

The picture on the screen continues to change.

A map appeared, and red dots lit up on the map.

"Beidu, Qingyang, Mayi, Atai, Xinghuo, Lin'an, Lundong, Changyang, Nandu, Tianfu."

"Ten first-level gathering places, scattered throughout the Great Zhou Dynasty."

Ten first-level gathering places??

How come there are so many of them?

Everyone frowned and listened attentively.

Some people even have some vaguely scary thoughts in their minds.

"Teacher, why are these different from the history we learned?" A student in the front row asked.

Su Jianyang did not choose to answer.

Continue to explain on your own.

"In the 20th year of the new era, the first third-order alien species appeared. The first appearance brought a wave of third-level alien species. It was difficult to resist with ordinary artillery fire. The Nandu gathering place paid a heavy price to destroy the alien wave."

"In the 30th year of the New Era, the first special species appeared, with strength far beyond its level. It led an army of alien species and besieged the Mayi gathering place. The distance was too close to use nuclear weapons."

Then what?

Everyone pricked up their ears.

Su Jianyang paused for a few seconds and said, "This is the first time that a first-level gathering place has been destroyed."

There was a sudden silence in the classroom.

Only the soothing music coming from the podium was always in my ears, calming the negative emotions that were about to arise.

After leaving everyone ten seconds to buffer, Su Jianyang spoke again.

But as soon as he opened his mouth this time, everyone was a little overwhelmed by the content that followed.

"In the 40th year of the New Era, the first level four alien species appeared. In the nuclear explosion, the alien species mutated and walked out of the explosion, and then the Atai gathering place was destroyed."

"In the 50th year of the New Era, Tianfu and surrounding gathering areas faced the threat of abyss cracks and alien species. They were in danger and the first major migration in history occurred."

"There are hundreds of millions of people, but less than a million survive."

The huge number is like a heavy hammer, hitting everyone's heart.

But, it's not over yet.

It's far from over.

"In the 60th year of the New Era, the southwest and northwest of the Great Zhou Dynasty completely became occupied areas and a holy land for alien carnivals."

"In the 70th year of the New Era, the alien species will move north. If the Lin'an gathering place is lost, the alien species will directly threaten the north."

"So the second great migration in history took place, but this time, it was extraordinary and unyielding."

"One hundred thousand young people die together and save thousands of miles of rivers and mountains."

"Refuse to retreat thousands of miles away from alien species, and separate the north and the south from now on."

"In the same year, the Nandu Gathering Area tried to move, but the route was blocked by a crack in the abyss, so it was temporarily shelved."

"Fight, surrender, seek peace, give in."

"After decades of fierce fighting, it now seems that retreating to the north might have been the best option as early as the initial ceding of territory?"

"As a result, the scale of the later gathering areas was so large that any move would be a traumatic experience."

"It's just that no one knows whether it would really be better to keep giving in."

"The strength of extraordinary beings continues to grow stronger, but the cracks are widening, and the alien species that have entered the Great Zhou are getting stronger and stronger."

"The southern capital is trapped, and it's hard to stand alone. I finally plan to accumulate strength, abandon the gathering place, and move to the north."

"In the 75th year of the New Era, a fifth-level special species appeared and shattered the dawn of the Great Zhou Dynasty."

It was almost dead silent in the classroom, and you could hear a pin drop.

The screen moves slowly.

Aerial photography shows that the vast land is devastated.

"The third great migration caused heavy losses, and we completely lost the south."

"This war has lasted for hundreds of years. We have made some mistakes and taken some detours."

"Extraordinary person, Night Watch Division."
To be continued...