Old man Li Ruhai was introducing the emperors who had taken refuge with his students, and Zhang Yang was also kicking open another cave with a tentative kick, looking at the cave that had obviously become a little brighter, and returned to the cave, talking about his own guess, obviously he also knew the relevant history.

"I suspect this is a shelter, but we can't say why no bones or frozen bodies have been found, but we can probably confirm it now, at least judging by the situation in this cave, this should be a shelter for now.

I don't know if you have ever understood such a period of history, in 756 AD, An Lushan rebels captured Tongguan, Tang Xuanzong deeply felt that Chang'an was in danger, and fled west with members of the royal family and civil and military ministers, with Yang Guozhong's experience in serving as the envoy of Jiannan Jiedu in Sichuan, it is better to be familiar with the road than to go to the strange and barren Xiliang, so Tang Xuanzong agreed with Prime Minister Yang Guozhong's suggestion and went straight to Sichuan.

......”

After introducing a few emperors who had come to Sichuan for refuge, Zhang Yang took out a thermos pot from his backpack, took a sip of warm water, and continued after using his throat.

"And Daocheng Scenic Area, this Xiannai Ri Snow Mountain is located in Sichuan, as for why some emperors like to take refuge in this area, we have to talk about the special geographical environment and historical factors of this region.

People often say 'belly and back by the enemy', which means that they have been attacked by the enemy in front and back, and they feel the danger of the situation, and there is a dilemma, but in fact, this situation occurs only a few, and more often than not, they are attacked on one side.

The Qinchuan River traverses 800 miles, and Chang'an City, surrounded by eight rivers, is located between the Qinling Mountains and the Loess Plateau.

As the throat of the vast hinterland of the Central Plains in the east and Guanlong and even the far Western Regions in the west, this narrow land actually played the role of almost the only channel for thousands of years before the Tang Dynasty, among which Chang'an City was the hub of the entire empire.

During the Anshi Rebellion, An Lushan attacked from north to south, and when the imperial uprising Huangchao marched from south to north, all in Henan turned to advance westward, in the east there were rebels, and there were mountains and plateaus in the north and south to block the 'pocket-like' situation, all the way to the west, fleeing to the rich Sichuan This area was the only choice of the Tang Dynasty emperor.

Whether it is Tang Xuanzong, Tang Xizong, or Jiang in modern times, their enemies all come from the east, and it is natural that they choose to flee to Sichuan in the west, but the situation of the Song Dynasty, which is in danger in northern Xinjiang, is very different. ”

Seeing that it was already 6 o'clock in the evening, Zhang Yang simply returned to the hole he had entered before and sat down, took out Snickers and chocolates from his backpack and continued to chat with the people in the live broadcast room while solving the dinner.

"During the Song Dynasty, disturbed by the frequent attacks of the northern Jin, the Song Dynasty also considered moving the capital westward, and then set its sights on Sichuan, when Sichuan could be said to be extremely prosperous in commerce, fully equipped with the conditions for building the capital, when Zhao Gou talked about moving the capital, many people proposed that Jiangning south of the Yangtze River was the only choice for the new capital.

At that time, Sichuan's handicraft industry and commerce flourished, and during the Northern Song Dynasty, the world's earliest paper money 'Jiaozi' was produced, and it stands to reason that the emperor must have preferred it here.

However, Li Gang, who was deeply trusted by the emperor, objected to those colleagues at that time, saying 'Jin...... moved the capital to Jiankang, and never returned to the Central Plains, if the purpose is to avoid chaos, it should also be ...... Avoid the chaos in the western Shu land. ’

Although this opinion is also reasonable, with the division within the imperial court, Li Gang was impeached, and the relocation of the capital to Sichuan was no longer mentioned, and it was no longer mentioned.

It's just that with the frequent wars in the north, the Jin army was like a sharp sword hanging over the head of the Song Dynasty, which made the Song Dynasty restless, so Zhao Gou decided to move south, and in 1138 AD, the Southern Song Dynasty officially set the capital Lin'an.

Later, in the thrilling process of escaping, there were constantly dangerous battles coming from the east, coupled with the long journey, the lack of people and horses, the emperor who was on the way to escape felt that the back was thorny, in this case to find a natural terrain, easy to defend and difficult to attack, and rich in closed 'shelter' became a top priority.

And the Sichuan that has encompassed these conditions, obviously in front of you, in the thousands of years of Dujiangyan moistening, by the Min River, Tuo River, Qingyi River, Dadu River alluvial plain, a total area of 23,000 square kilometers Chengdu Plain wind and rain, grain year after year bumper yield, to the first year of Tang Tianbao, that is, 742 AD, Sichuan population accounted for 22% of the country.

Even the great poet Li Bai couldn't help but sigh that 'nine days open out of Chengdu, thousands of households and thousands of doors enter the drawing, the grass, trees, clouds and mountains are like splendor, and there is nothing in Qin'.

At that time, the closed environment of Sichuan attracted the attention of the evacuees in the turbulent situation, with Daba Mountain in the north, Yunnan-Guizhou Plateau and Dalou Mountain in the south, Qionglai Mountain and Daliang Mountain on the edge of the Qinghai-Tibet Plateau in the west, and Wushan Mountain in the east.

After you sing, I will take the stage, the situation has changed for two thousand years, and the separatist regime has changed frequently in this slightly remote land, and how many princes and princes will come one after another, and then quietly retreat.

These factors also became the reason why I suspect that this is a shelter, but although there are traces of human activity here, looking at the two sealed holes, it should be the ventilation position at that time, but since it is sealed, it means that this place should not have been activated. ”

......

"Okay, that's right, this guy still knows a lot about that history, Meiling, don't say it's you, you always say that I like to watch this guy's live broadcast now, haha, why don't I also register an account and pay attention to his live broadcast? Which software is it?"

Old man Li Ruhai looked at Zhang Yang's confident appearance in the picture, and listened to him sitting there talking casually, and couldn't help but gently raise his hand and pat the desk, obviously agreeing with what Zhang Yang would say.

"That's right, but looking at the scene in this cave at the top of the mountain, this should be an unused vault, but if other discoveries are found elsewhere, it is possible to overturn this speculation.

But there must be a downward channel here, otherwise those people wouldn't have been able to come up at that time, so Meiling, let's see if you can contact this anchor, it's called Zhang Yang, right?

Let's see if you can contact this Xiao Zhang and ask him to find out if there is a downward passage here, so that he should be able to leave the snowy mountain more safely along the passage. ”

......

After settling the dinner, it was as if he had heard the suggestion made by the old man Li Ruhai in a distant place, Zhang Yang clapped his hands and stuffed the thermos pot that had just screwed the lid into the backpack, and then stood up with the backpack on his back again.

"Okay, now we have to find out where the downward passage is, of course the passage must exist, but it may be hidden, and we need to look for it, so maybe I can leave this snowy mountain directly from the inside of the mountain." ”