Xu He did not answer Tan Lun's question.

He, a newcomer Hanlin, has no right to speak in the court, even if he directs the country and scolds Fang Xuan, it is just talk on paper.

Xu He bowed to Tan Lun and said, "Mr. Zili reminded me. ”

"Do you know the Xiaoice River?" Throw out a concept that is unheard of in this era and attract the attention of the other party.

Tan Lun really frowned and said, "Xiaoice River? ”

"It's the world we live in, all of a sudden, it's going to get cold, and the food production is drastically reduced, which causes a lot of problems!"

"For example, in the last years of Yin Shang, starting from Di Yi, floods and droughts, locust plagues, and earthquakes often occurred in Yin Shang!"

"The Yellow Turban Army at the end of the Eastern Han Dynasty, as well as the Three Kingdoms of Wei, Shu and Wu until the Western Jin Dynasty!"

"That's because there are so many wars!" Tan Lun opened his mouth to refute.

Xu He shook his head: "In the second year of Emperor Heng's eternal life, there were more than 16.07 million households in the country, with a population of more than 50.06 million. ”

"By the end of the Three Kingdoms, there were only more than 1.49 million households, and the population had become more than 5.6 million and 200, only a quarter remained."

"The long-term war and the encroachment of large households on the host population were partly due to this, but famine and plague were the main reasons for the sharp decline in the population at the end of the Eastern Han Dynasty."

Cao Cao's poem describes: "The armor gives birth to lice, and all surnames die." The white bones are exposed in the wild, and there is no rooster crowing for thousands of miles. The people are left behind, and the thought breaks people's intestines! ”

Cao Zhi's "Speaking of Epidemic Qi" describes: "In the twenty-second year of Jian'an, dysentery was prevalent, every family had the pain of zombies, and there was crying and mourning in the room, or the door was closed and died, or the family was mourned. ”

"Why the famine? It is because of the cold of the Xiaoice River that the grain production has been greatly reduced, and the cold weather has caused a large number of locusts to grow, resulting in a large-scale locust plague! ”

When Tan Lun heard this, he was suddenly shocked, and by the time of the Yande Dynasty, the locust plague he knew had broken out more than thirty times.

Could it be that what Xu He said ......?

Xu He continued at this time: "In the last years of the Tang Dynasty, the court was corrupt, the eunuchs interfered in politics, the courtiers fought for the party, and the feudal towns were divided. ”

"From the end of the Tang Dynasty to the five dynasties and ten kingdoms, China at that time experienced another Xiaoice period, and the population of the last year of the Tang Dynasty was more than 60 million, and in the early years of the Northern Song Dynasty, there were only more than 20 million left!"

Specific evidence, the historical materials before the Western Zhou Dynasty, Xu He is inconvenient to say.

Because there are clouds in the "Bamboo Book Chronicle": "In the seventh year of King Xiao of Zhou, winter, heavy rain and hail, Jiang Hanbing, cattle and horses froze to death!" ”

"In the thirteenth year of King Xiao of Zhou, winter, heavy rain and hail, Jiang Han Bing, cattle and horses froze to death!"

In another time and space, it is hard to imagine that the Yangtze River and sweat are frozen in winter!

You can imagine how cold it is!

Or "Bamboo Book Chronicle": "In the ninth year of King Zhou You, autumn and September, peach and apricot fruit." ”

Now the fruiting season of peaches and apricots in the Central Plains is in the summer, but at that time, it was postponed to September (according to the current calendar, it is estimated that it is already October!). ）

Let's take a look at the four years from the founding of Emperor Cheng of the Western Han Dynasty to the twenty-four years of Emperor Jian'an of the Eastern Han Dynasty.

There are only records of severe cold, heavy snow and drought in the history books, and there are no records of other natural disasters.

Xu He never forgot it, and recited the relevant contents in the history books one by one.

Emperor Cheng of the Han Dynasty was founded in the first four years of summer and April, rain and snow, autumn peach and plum fruit.

Emperor Cheng of the Han Dynasty in the fourth year of Yangshuo, in the summer and April snow, the finch died.

In the early years of Emperor Zhang of the Eastern Han Dynasty, the summer was cold.

The spring of the second year of Emperor Shun Yangxi of the Eastern Han Dynasty was cold.

Emperor Huan of the Eastern Han Dynasty was cold in the winter of the seventh year, killing birds and beasts, and harming fish and turtles.

Emperor Ling of the Eastern Han Dynasty was cold in the winter of the sixth year, and the ice in Donglai and Langya Wells in Beihai was more than a foot thick.

In the summer and June of the fourth year of the Eastern Han Dynasty, the cold wind was like winter.

"Mr. Zili, these are all things I remember in my mind, but I can't remember the time clearly, if you don't believe it, I can find the Han Book, the Later Han Book, and the Tongjian for you to check one by one."

At this time, Tan Lun was already stupid.

Xu He's appearance doesn't look like nonsense.

But Xu He is not over yet.

Beginning in the second year of Emperor Taizong Yongxi of the Northern Song Dynasty, he entered the third Xiaoice River period.

Since the second year of Yongxi, the climate has taken a sharp turn for the worse, and the strange cold scene of wind and snow in the Jianghuai area has reappeared.

In the area of Chang'an and Luoyang, all the citrus and other fruit trees that could be planted in the early Tang Dynasty froze to death.

The Huai River, Jiangnan, the lower reaches of the Yangtze River and Taihu Lake are all frozen......

Speaking of this, Tan Lun suddenly interjected: "Last year, the year before last, Taihu Lake also froze in winter, and it is feasible to use carriages on ice!" ”

Xu He nodded, he was on his way to the capital at the time, not to mention the Grand Canal.

If it weren't for Mao Bao's organization of people to dig ice and break the waterway in advance, the official ship he was on would not know when it would have arrived in Beijing.

However, Xu He can't see these scenes, and Mao Hao has already arranged for people to do all the work along the way.

Thinking of this, Xu He sighed in his heart.

Are you the ruling class?

Before becoming an official, he couldn't see many things.

Tan Lun said: "During the Northern Song Dynasty, I knew one thing, which seemed to be the same as that of the champion Gong Xiaoice......"

"Xiaoice River!"

"Related to the Xiaoice River."

"Mr. Zili, please."

"Listen to the legend of the old man in my hometown, during the Yuan Dynasty, we Yihuang still had elephants!"

"However, later on, these elephants seemed to be afraid of the cold, and they all moved south to Guangxi and Yunnan-Guizhou!"

Xu He nodded: "There is also rice, in the Song Dynasty, there was less rice in the north, except for upland rice that could be planted, rice was already rare in books!" ”

"But Zhu Shengren has clouds, rice, and rice in the annotation of "The Book of Songs, Tang Feng, and Bustard Feathers", and the rice eaten in the south is aquatic and white!"

Tan Lun is a scholar, this example is the most direct evidence for him, as soon as he heard this example, he immediately frowned and pondered.

After a while, he exclaimed: "Now there is no rice in the north, won't the weather get warmer?" ”

"I don't know!" Xu He told the truth that there was no thermometer in this era, and he could not give a detailed comparison of climate data.

But......

"Mr. Zili, from the first year of Yande to the winter of the thirty-sixth year. There are only two records without snow in winter! ”

When Xu He said that there is no snow in winter, he does not mean that there is no snow in winter, but that there is no snow disaster in winter.

Moreover, from the first year of Yande to the present, there have been seven records of rain and snow in Wanzhou, Qiongzhou Prefecture, Guangdong.

Qiongzhou!

Hainan Island!

Thirty or forty centimeters.

It is snowing on Hainan Island, and the snow is thirty or forty centimeters!

Just think about the numbness of the scalp!

Tan Lun said with a heavy heart: "So does the champion think that this is a natural disaster, and a man-made disaster is just a small cause?" ”

Xu He shook his head: "I said so much, I just wanted to tell Mr. Zili that there are Tartars and Japanese robbers raging outside, and natural disasters are frequent inside. ”

Tan Lun smiled bitterly: "According to what Gongzi Xu said, the natural disaster is so powerful, do we still have hope?" ”

Xu He nodded firmly: "How difficult it is to consolidate the country, or how worried it is to enlighten the Shengming!" ”

"How difficult it is to prosper the country! Mr. Zili! ”

When Tan Lun heard these four words, his whole body couldn't help but tremble slightly.

"This chapter is for our unfortunate compatriots in the earthquake!

Also to all the mourning Chinese!"