In the conservatory in Bianjing, Zhao Pu was thoughtful.

Zhao Pu, who has been alone for ten years, knows a lot about today's world.

Since the middle and late Tang Dynasty, it is no longer an empty talk that the world's money and grain depend on the southeast, but a de facto description.

And it is also a fact that Chang'an is no longer favored.

After the death of the Tang Dynasty, Liang, Tang, Jin, Han, Zhou, and then counting Fujian, Shu, Chuyue, etc., none of them were in Chang'an.

Only the Sha tribe of the descendants of the Western Turks took the Tang Dynasty as the name and set the capital at Luoyang.

But in Zhao Pu's opinion, this Sha Tang may not like Luoyang much, and it is more about the name of righteousness.

After all, the royal family is a naturalized Hu who has no blood relationship with Li Tang, and if he takes Tang as his name but establishes the capital elsewhere, it is somewhat too much to say.

That's it, the emperor of the Sha Tang Dynasty also had to worry about eating like Emperor Li Tang.

It is no secret that the state and county flew and handed it to the Beijing Division, and the tenant envoy waited outside the Upper East Gate to look at it, and it was not a secret that he would give it.

And as far as Zhao Pu knows, Li Cunqiao also wanted to go to Bianliang to beg for food.

But in the end, considering that going to Bianliang to beg for food would expose Luoyang's lack of money and food and cause instability, he finally followed the advice of his subordinates to live frugally.

It's just that thinking about it like this, Zhao Pu feels that the decline of Chang'an Luoyang commented on by this light curtain also has some truth.

Li Tang Lidu Chang'an went to Luoyang to beg for food, and Sha Tang Lidu Luoyang went to Bianliang to beg for food.

Now Song Li Bianliang seems to have taken advantage of Cao Yun, but the last sentence of the light curtain also made Zhao Pu instantly alert:

The Jin Dynasty drove straight in.

With gold as the number, Zhao Pu searched all over his memory and couldn't find it, so he turned the paper in his hand forward, and the country name he saw in the light curtain was scribbled on this paper.

glanced back at Song Fen North and South again, and was finally replaced by Yuan, and Zhao Pu couldn't understand it for a while.

subconsciously set his eyes on Zhao Kuangyin:

The official family does not give an explanation?

Zhao Kuangyin was so confused that he just reluctantly waved his hand and didn't want to talk more, planning to think about it himself.

The plan to move the capital has been brewing in his heart for some time.

Later generations talked about the reasons for Dingdu, and at first Zhao Kuangyin just smiled:

What do you know about the big event of moving the capital?

But watching the juniors lay out the facts and explain the reasons for the future, Zhao Kuangyin suddenly sweated a little:

What do I know about the major event of moving the capital?

And looking at the younger brother on the other side with his head down and couldn't see his face clearly, Zhao Kuangyin suddenly became even more upset.

But this emotion didn't show it in the end, but nodded to Zhao Pu cordially:

"If you don't understand, I'll stay and talk to me later."

……

"Two thighs ......"

Du Ruhui muttered about the straightforward, but very appropriate description of the later generations.

"The central ...... of military, government and finance"

Fang Xuanling also tasted this common word and concise description in later generations.

Then the two important ministers glanced at each other, and they also had a little bit of their own cognition in their hearts.

"The disaster of Anshi is to move Hu to make Hebei controlled, and the thieves will occupy this place to be rich and half of the Tang Dynasty, and the disaster will breed."

"I'm going to lose the ...... of Hebei," Du Ruhui said and stopped, because the things that followed were too easy to deduce.

If there are rebels, they will increase their troops, and if they increase their troops, they will have to collect additional taxes, and Hebei's disability depends entirely on the southeast.

The multiplication of taxes will cause resentment in the southeast and eventually chaos......

What do you say about that word in the juniors?

"It's an endless cycle, it's ......"

Wei Zheng took a breath and remembered the simple but deafening two sentences of the sages:

"If you enter, you can't go home, and if you go out, you can't beat foreign patients."

Li Shimin lightly annotated these two sentences of the words of the sages:

"Guoheng is dead."

The narration of the younger generation showed him the cause of Tang's death from a fairly clear angle:

The Yellow River is silted up due to reclamation, and it is inconvenient to transport it.

The internal migration of the Hu people caused chaos in Hebei, and the Tang Dynasty lost half of the country.

When the people have nothing to eat, prosperity is like a castle in the air, and it will fall at the touch of a button.

But even so, Li Shimin still asked himself:

"How can Bianzhou be the capital?"

Li Shimin is no stranger to this place, as later generations said, this is the key point of the southeast Caoyun.

During the Northern and Southern Dynasties, Chen Liu was divided into Liangzhou and Kaifeng County, and later Liangzhou was changed to Bianzhou, and Bianzhou was abolished in the former Sui Dynasty, and its land was merged into Xingyang, Yingchuan and other counties.

It's just that after the opening of the Tang Dynasty, Bianzhou was reset, and combined with what later generations said, Li Shimin can say very clearly about the place where he is located.

And the first reaction was to question: although Chang'an is not in danger, it is a situation when Guanzhong is broken.

Guanzhong has Longshan on the left and Tongguan on the right, and Luoyang is also Chenggao on the left and on the right, what about Bianzhou? There is no danger to the north.

Li Shimin felt that if he personally commanded the cavalry, five days would be enough to fight from Zhuojun to Bianzhou.

And thinking about the Jingkang Rebellion that was fulfilled in the end, Li Shimin shook his head again and again.

I don't know whether to admire the courage of this Song Emperor, or to laugh at his stupidity in reading.

Is it not in danger in Germany?

How can we talk about virtue without risk?

[The influence of climate runs through the entire history of human civilization, including the different civilizations of the East and the West, and also includes the present in which we live.

Just as luck was the lifeblood of empires throughout feudal times, the Mediterranean was equally important to ancient Rome.

It's just that the Mediterranean is nature, and its response to climate change is more drastic.

This magnificent bath allowed Ancient Rome to forge its own golden age, but it also sounded its death knell in the end.

Just as Emperor Huan Ling witnessed the decline of the Han Empire, Marcus Aurelius, who lived in the same era, also witnessed the elegy of the ancient Roman Empire.

During this period, the population of ancient Rome reached an unprecedented 75 million, but then the situation began to deteriorate dramatically.

The Antonine plague and the Cyprian plague we mentioned earlier are just piggybacking, and the biggest cause is climate change.

At about the same time as Prime Minister Zhuge was in the autumn wind, the warm period of ancient Rome officially ended, and the cold wave officially launched a counteroffensive against ancient Rome.

The warm, humid, and stable climate of the Golden Age of Ancient Rome disappeared and was replaced by a cold, dry, and capricious climate.

As in ancient China, the immediate effect of this climate was a large failure of the grain harvest.

Remember the Carthaginian bishop Cyprian, who was named after the Cyprian plague, and he left behind manuscripts that also recorded the changes in the climate in North Africa:

"Precipitation is becoming scarce, the land is becoming poorer, and crops are not growing as fast as they used to be."

If the prosperity of the Tang Dynasty depended on Hebei and Jianghuai, then the prosperity of ancient Rome was built on Egypt, the granary of God.

However, with climate change, the flow of the Nile River has also been cut in half, greatly reducing Egypt's food output.

Ancient Rome was overstretched by a drastic drop in agricultural output, and the plague of Cyprian left Rome scorched, culminating in a period of civil strife that made the final cut against Rome.

In 251, Sima Xuanwangga, the Roman emperor Decius, was stabbed by the Goths on the Danube.

The following year, Shapur, son of Ardashir, King of Kings and Emperor of the Sassanid Persian Empire, successfully counterattacked Rome, occupied Syria, and sacked Asia Minor.

At the same time, the Goths in the north were not idle, they went directly to the Aegean and Black Seas and plundered them.

Seven years later, the commander of the Roman garrison in Gaul proclaimed himself emperor and broke away from the Roman Empire, an emperor who probably shared a common language with Zhao Dating.

Limited by the threat of the Franks and Alemanni in the north, Rome pinched its nose and recognized the independence of the Gallic Empire and formed an alliance.

But they were still defeated by the Franks on the battlefield.

It is fair to say that some of Rome's monarchs did try to sustain the life of this vast empire at the end of the Golden Age, but because the fundamental agriculture was severely damaged by the climate, these institutions were more or less unsatisfactory and induced all kinds of unpredictable changes.

In 293, in order to cope with the endless external troubles of the huge empire, the Roman Emperor Diocletian introduced the system of four emperors, dividing Rome into two provinces, east and west, each with two emperors to control each other, this system quickly collapsed after the death of Diocletian, which is how Eastern and Western Rome came about.

Over the next two hundred years, Roman and Chinese emperors faced similar problems: declining agricultural production, rebellions, and conscription, and declining agricultural yields.

The difference is that the Roman emperor, in the face of boiling public resentment and natural disasters, finally issued a decree to "depose the hundred religions and Christian orthodoxy", which deeply bound the empire and the church.

It was not until the sixth century that this long period of low temperature finally ended, and ancient China began the splendid Sui and Tang dynasties.

The same was true of ancient Rome, where Justinian the Great vowed to restore Rome to its glory and launched a vigorous reconquest campaign.

But a sudden massive volcanic eruption shattered Justinian's dreams, the Mediterranean climate fell back into disorder, and the massive plague began to spread again, shattering the dream of recovering Rome and the power of the Church flourished.

The sudden deterioration of the climate also forced the Arabs out of the barren desert and began a vigorous Islamic conquest that completely crushed the dream of the restoration of Rome. 】

"75 million people ......"

Liu Bei was first taken aback by this huge population base, and then a feeling of envy arose.

"Is this Mediterranean really better than the land river?"

said so, but Liu Bei also knew that this was nonsense.

After all, the canals have been repaired endlessly in the Spring and Autumn Period, as well as the large canals built in the later generations of the Sui and Tang dynasties, etc., in essence, it is not that the river transportation is not convenient enough......

It's just that Liu Bei also remembers that when he was a child in his hometown in Zhuo County, he could occasionally hear various legends about the impermanence of the sea in the east and devouring people, so many people were born with a little fear of the ocean, and he was no exception.

But now it seems that the Mediterranean Sea should not be the same as the East China Sea, which I feared as a child.

"It is not surprising that its vast territory depends on the benefits of the Mediterranean Sea and ignores the dangers of the earth, so it is not surprising that external troubles are everywhere."

Kong Ming stared at the map thoughtfully.

Later maps are often quite sketchy, but important information is not missing, just like the terrain of ancient Rome can be seen on the map.

The coast is mountainous and hilly, and the north is vast, what is the difference between the so-called Goths, the Franks, etc., and the Hu people faced by Han'er?

(End of chapter)