Guo Junnan stared at the map and said, "I'm talking about it now. Zhou started from Xiqi, so Haojing is naturally the capital! But the reason why Zhou was built in the early Zhou Dynasty was to suppress the east. The accompanying capital of the Great Zhou also provided soil for the relocation of the Western Zhou Dynasty and later the construction of the capital. Needless to say, the capital was established after the reunification of the Great Qin Dynasty. Guanzhong and Xianyang, which had been operating for many years, are naturally unlikely to change. From a comprehensive economic and military perspective, Guanzhong, on the one hand, is solid in the four barriers, and on the other hand, it is rich, and on the other hand, this absolute advantage makes it difficult for Liu Bang, the Emperor Gaozu of Han, to inherit it."

"When it comes to military affairs, around the Guanluo area, Hangu Pass is located in Shangyang City, the east gate of Tongguan Guanzhong, Hulao Pass is also the gateway to the east of Luoyang and the important pass, named after King Mu of Zhou, here is the siege of the military. They are all places that must be fought for by military strategists." Xu Wendong looked at them with dark eyes and said,

"Yeah!" Everyone nodded together, and they were the memories of the important military situation engraved in their bones.

"Then let's set the capital in Chang'an!" Tang Bingzhong said without thinking, "With these barriers, one man should be a barrier that cannot be opened."

"Bingzhong, we haven't won Chang'an yet!" Xu Wendong reminded him.

"It's all ours sooner or later." Tang Bingzhong said with bright eyes looking at them.

"Listen to me, you won't think so." Yao Changsheng looked at him with a funny look.

"Speak quickly, speak quickly." Tang Bingzhong urged him to look at him.

"The capital was moved during the Eastern Han Dynasty because Emperor Guangwu ascended the throne in Luoyang. At that time, Guanzhong was not in hand. After the recapturing Chang'an, Chang'an was also treated as a capital. Therefore, it can be said that Zhou, Qin, Han, Wei and Jin were both the capital of Guanluo. Of course, the reason was the generous time and geographical conditions." Yao Changsheng changed his tone, "When the Western Jin Dynasty changed, because the Five Barbarians invaded China, a city wall could not be the capital of several countries at the same time. The Eastern Jin Dynasty was the capital of Jiankang of Eastern Wu. The reason was that Jiankang could indeed integrate military and economically to take into account the Three Wus and Huainan." The baton pointed to the position on the map.

"In addition to the Eastern Jin Dynasty, Han Zhao, Later Zhao, and the capitals of the Former and Later Yan changed many times, and suddenly fell. Except for Xiangguo, they were generally traditional metropolitan cities, and Xiangguo was also abandoned by Later Zhao. Shi Hu moved the capital to Yecheng. As for other small countries that appeared, I won't talk about it, and it can be ignored." After pausing, he said, "After the Southern and Northern Dynasties, he moved from Luoyang to Yecheng. It was mainly military considerations." He pointed to the map and said, "The situation in the world changed again, and it was about to be the Sui and Tang Dynasties. The Sui Dynasty established its capital to Guanzhong and destroyed Yecheng and Jiankang. Jiankang was another scene with the rise of the south, but Yecheng never recovered from it, and he rarely heard of it. The economy moved north to Jizhou, which is the land of Yanzhao."

"Due to hundreds of years of war, plague, and famine, Guan Luo can no longer suppress the world in all aspects like the Qin, Han, Wei and Jin Dynasties." Yao Changsheng looked at them with cold eyes and said.

"No! That's the desirable Chang'an and Luoyang! The prosperous atmosphere is like this!" Tang Bingzhong looked at him in disbelief and said.

"What Changsheng said is true." Guo Junnan looked at them with delicate eyes and said, "Luoyang is surrounded by mountains, there are no plains, and he does not produce food. The Guanzhong Plain can no longer provide enough food for Chang'an to use for daily chewing."

"This..." Tang Bingzhong's eyes were glaring like a copper bell.

"Don't be so surprised. During the prosperous Tang Dynasty, Guanluo needed to rely on the canal transportation to guide the inflow of materials from Jianghuai and Jizhou." Yao Changsheng pointed on the map, "In "New Book of Tang? Food and Goods III" said: Jianghuai canal rented rice to Dongdu and transported to Hanjiacang, and then transported to Shaanxi by car or carriage, and then traveled to Chang'an by Weishui." Nunu said, "This shows that Guanzhong and Luoyang were highly dependent on Youyun and Jianghuai during the Sui and Tang Dynasties."

"Military, if you keep the transportation routes under control, you can trap Chang'an and Luoyang to death." Guo Junnan said bluntly, "So the Anshi Rebellion caused a devastating blow to the Tang Dynasty."

"Because there is no food and grass!" Tang Bingzhong gasped and said in a cold air.

"There are many reasons, but that's what I can say." Guo Junnan nodded.

"And not only that, the transportation cost is also very high. On the roads of the Yellow River, Luoshui, Jianshui, Shangyangcheng, and Weishui, if you take the water route," Yao Changsheng pointed Shangyangcheng, "because of the danger of Shangyangcheng, the goods often go to 90% of the ten." Turning his head and looking at them, "There is a word called 'Zhonglizhu' that refers to the Sanmen Dizhu Mountain of Shangyangcheng. Boats and ships often crash here, and when they enter the Weishui River, it is also difficult to pass because of the poor water flow." After a pause, he said,

"The Tang and Han Dynasty built Guangtong Canal here for transportation, but because it was connected to the Yellow River, it was greatly affected. It was necessary to clean the silt from time to time, so the cost was very high. If you do not take water, you can go on land? The land transportation is only 300 miles, and you can take two hu of commission and a thousand yuan. The price is also very high. Therefore, during the Sui and Tang Dynasties, once a disaster occurred in Guanzhong, the emperor would lead the ministers to the eastern capital Luoyang for a long time. Because Chang'an food was not enough to support the huge temple center and its various departments and government offices, this situation is called 'just food'."

"Yeah! The gods are Luoyang!" Tang Bingzhong nodded hurriedly.

"The Emperor of Grain Escape." Li Daotong said, "Why did the Emperor of Grain become an abolished capital after the Tang Dynasty? The Emperor of Grain Escape Escape revealed the truth. Xi'an's ability to become a capital mainly depends on the property resources of the Guanzhong Plain. During the Western Zhou Dynasty, Qin and Han Dynasties, the capital was small in population, and the property could still be maintained. By the Sui and Tang Dynasties, the Guanzhong Plain was not enough to supply Chang'an. The Guanzhong Plain was small and dense in population, and it was difficult to support a large number of bureaucrats and nobles."

"So, Emperor Yang of Sui built the Grand Canal for the sake of food." Tang Bingzhong said happily. This feeling is amazing. "Isn't it for going south to Yangzhou to play?"

"This man's two mouths can be said no matter what. The white ones are said to be black, and the living ones are said to be dead." Yao Changsheng said bluntly, "Most people just follow the crowd."

Li Daotong looked at Yao Changsheng in surprise. This man really dared to say anything, but he just pointed at someone's nose and scolded: he was brainless.

"His father, Emperor Wen of Sui, built canals when he was in power, but the problem of transporting food was not solved and it encountered a disaster year. He was forced to go to Luoyang to eat and become the first emperor to chase grain." Lin Guanbang looked at them and said seriously.

"Emperor Yang of Sui built the Grand Canal, built Luokou Cang near the Luoyang section of the Grand Canal, and Huiluo Cang. The total number of grain storage in Huiluo Cang City alone can reach 355 million jin, so he doesn't have to worry about food. Luokou Cang and Huiluo Cang were outside Luoyang City. At the end of the Sui Dynasty, Wagang Village occupied the granary, causing the capital Luoyang shortage. Emperor Taizong of Tang changed the granary to the city and built Hanjia Cang in Luoyang City. The total number of grain storage in Hanjia can reach more than 500 million jin, accounting for half of the national storage, becoming the world's granary." Guo Jun

Nan continued, "During the Tang Dynasty, Emperor Taizong and Emperor Gaozong of Tang came to Luoyang many times to live, and continued to perform the eviction of grain in the emperor. In April of the first year of Yongchun, Emperor Gaozong of Tang arrived in Luoyang for the last time. At that time, Guanzhong was famine, people in Chang'an City fed each other, and even the emperor's entourage were starved to death. It can be said that this was a great escape. The next year, Emperor Gaozong of Tang died of illness in the Zhenguan Hall of Ziwei Palace in Luoyang Palace. After Wu Zetian came to power, he lived in Luoyang City for a long time. After becoming the emperor, he established the capital of Luoyang, so he should not be eviction of grain in the emperor."

Li Daotong looked at them and said, "After the Anshi Rebellion, the feudal states were divided, the Grand Canal was neglected to manage, and the food crisis in Chang'an became even worse. During the reign of Emperor Dezong of Tang, a famine occurred again in Chang'an. The imperial guards had no food to eat and had to beg on the streets. Later, the food arrived in the capital. Emperor Dezong of Tang ran to the East Palace and said to the prince: The rice has arrived in Shaanxi, and my father and son have left over."

"This aborted capital in Chang'an, no, no!" Tang Bingzhong shook his head like a rattle, "Rice in Chang'an is expensive!"

"I'm afraid it's even more decay now." Yao Changsheng sighed, "The result of the tragedy caused is that there is no longer any precautionary effect on the northern grassland wolf. Since the Tang Dynasty, the grassland wolf has risen completely and has repeatedly deducted the borders and invaded the Central Plains."

"Isn't the Guanzhong Plain very rich?" Xu Wendong said to them.

"The population is too large, no matter how rich it is, it cannot withstand so many people!" Guo Junnan said with delicate eyebrows at them, "According to historical records, Chang'an was the first city with a population of over one million, and at its peak, it exceeded two million."

"I have so many gods, and we are worried about the food in tens of thousands of people." Tang Bingzhong couldn't help but smack his tongue, "Why are there so many people!"

"The world is peaceful, and you will naturally be born! Like a rabbit, you will be in a nest." Yao Changsheng said with a smile.

"Why are there so many disasters in Guanzhong?" Xu Wendong asked at them in confusion.

"There are many reasons, one of which is that there are too many trees cut down." Yao Changsheng held his hands on the back of the chair and looked at them, "Just as for locust plagues alone, I have checked historical books. In the more than 340 years from the Tang Dynasty to the Five Dynasties, a total of 45 locust plagues occurred, an average of about 7.6 years. These include the situation where multiple locust plagues occurred in the same year and the duration of one locust plagues spans two years. If multiple locust plagues in the same year are calculated as one year and the disaster spans two years are calculated as two years, then, according to the year, a total of 42 years have occurred in a total of 42 years, and an average of about every 8 years. The locust plagues in the Qin and Han Dynasties are 8.8 years, the Song Dynasty is 3.5 years, and the Dayan is 1.6 years."

"So often?" Li Daotong said in surprise.

"Otherwise, why are we going to revolt? It's because we can't survive." Yao Changsheng smiled bitterly, "This is not considered drought or flood! They are also frequent."
Chapter completed!