In fact, of course, it is not Yang Yong's good character, the Sui army inadvertently discovered this copper mine is the Erdenet copper mine of Outer Mongolia in later generations, the mine is not only easy to mine, but also has great reserves, in the seventies Outer Mongolia was mined with the aid of the Soviet Union, and after the collapse of the Soviet Union, Outer Mongolia and Russia joined forces, with an annual output of 400,000 tons of copper concentrate, and also associated with molybdenum and silver two precious metal veins. Once mined, the Erdenet copper mine became the main source of income for Outer Mongolia, accounting for 50% of the government's fiscal revenue at its peak.

However, at this time, there are still 600 years before the name Mongol appears, and now that history has changed, it is doubtful whether this nation can appear again, and the early discovery of this large copper mine is equivalent to cutting off the hope of nomadic herders to resurrect in this grassland, and the Han people will always firmly occupy this grassland for a steady stream of copper materials.

Of course, it may also be said that Yang Yong has a good character, and the territory of the Tang Dynasty in history has been expanded to the west of Lake Belga, but it has not been able to discover this large copper mine on the Mongolian plateau, otherwise these leaders would not have been abandoned in the later period.

Now there are only two kinds of copper coins in the territory of the Great Sui, one is the five baht of the emperor, one is the great cause of Tongbao, the great cause of the treasure, Gu Ming Siyi is the new money cast after Yang Yong ascended the throne, abolished the previous name of the five baht money, directly called the great cause of the treasure, the opening of the emperor five baht has been minted a small number of copper coins that have always reached six catties and four taels, however, the total amount is less than 10,000 guan, the rest are heavy four catties and two taels of consistent copper coins, the great cause of Tongbao continues the weight of the Kaihuang five baht, and the copper coin is also the standard four catties and two taels of Sui from the beginning of the emperor's coinage, In the first three years, a total of 45 million yuan of money was minted, and the currency of the former dynasty in circulation was confiscated. All of them were exchanged for five baht coins, and there was no old coins as a source of copper materials, and the amount of coinage in the back dropped greatly, first in 100 to 2 million yuan per year, and in the Renshou period, the court minted less than 450,000 yuan a year.

In the more than 20 years since the first Sui five baht was minted, more than 70 million copper coins have been minted by the imperial court, and more than 28 million yuan have been minted in the five years from the fifth year of Emperor Wu to the first year of Emperor Ping. This cannot but be said that the economy of the Great Sui has far surpassed that of the Han Dynasty.

The copper coins minted by the Great Sui were tin two copper eight, and the copper used was three catties and three taels and six coins, and 70 million copper coins required 117,600 tons of copper. These copper have almost exhausted the copper materials mined by previous dynasties, and now the newly mined copper ore in the court is only about a few hundred tons a year, and even if all of them are used to mint coins, it is only hundreds of thousands of yuan. It is far from meeting the needs of economic development.

If this copper mine can mine 1,000 tons of pure copper every year, it means that the Great Sui can mint an extra 600,000 copper coins, and 2,000 tons is 1.2 million yuan. Copper prices will also fall sharply. There will never be a good thing that the copper coin can be melted and the maker can make several times the profit.

"Congratulations to the emperor, congratulations to the emperor." The ministers who were with the emperor also reacted and said hello one after another.

"The emperor drove the expedition in person, and before he arrived at the battlefield, there was a windfall in front of me that could be used for a hundred years in the Great Sui, indicating that everything went well on this expedition, and the Liaodong clown who could definitely be killed." Zhao Nian joked beside him.

"Well, God doesn't take it, but suffers from it. Since God let the Great Sui discover this big copper mine, that is the wealth that God gave to the Great Sui, this copper mine is called the Tianyu Copper Mine, and the will of the Emperor will be passed on, and the twenty miles around the copper mine will be immediately divided into a forbidden area. The Ministry of Industry was ordered to formulate a detailed mining plan. The sooner the better, in addition. All the copper mines mined in China can be closed, and the miners will migrate to the grassland, and all the treatment will be preferential. ”

The discovery of Tianyu copper mine spread to the court, the Ministry of Industry took the greatest enthusiasm, and soon dispatched domestic skilled miners to the grassland, and the 50,000 Sui troops on the grassland no longer took a defensive position, became aggressive, mining copper ore requires a lot of manpower, these manpower can not come from the country, the best object is of course from the Western Turkic territory, the Western Turkic border herdsmen are also like the original Eastern Turks, caught in the bloody storm.

Although everyone has expected that this copper mine will bring benefits to the court, but no one expected that the benefits will be so great, in the first year just in the case of a small fight, the ore mined reached as many as 5,000 tons, if in China, these ores can only be refined 50 or 60 tons of refined copper, but the 5,000 tons of ore of Tianyu Copper Mine are enough to train more than 1,500 tons of refined copper.

Since then, this copper mine has been mined for more than 400 years, and the total output adds up to more than 5 million tons of refined copper, if all of them are used to cast copper coins, they can mint 3 billion copper coins, in fact, later due to the inflow of silver and gold, the copper coins in circulation at the highest time in the country are only about 150 million yuan, and only one-twentieth of the copper produced by this copper mine is needed.

Of course, it is impossible for all copper to be used to mint money, in fact, there are too many uses of copper, weapons, agricultural tools, utensils, large dings, bronze statues...... It's just that when the copper coins can't meet the requirements, naturally most of the copper materials are used to mint coins.

With this large copper mine, all the low-grade copper mines in the Great Sui stopped mining in the second year, and all the new copper materials in the Central Plains came from the Tianyu copper mine, until hundreds of years later, the Han people entered the era of comprehensive industry and thermal weapons, and the supply of this copper mine alone could not meet domestic demand.

However, at that time, the Han people had already broken through the barriers of the ocean, and the source of copper mines was even richer, and there was no need to fight the idea of low-grade copper mines in China, so that many primeval forests and landforms could be preserved to future generations.

Later generations have commented that the significance of this copper mine to China, no less than the significance of the textile industry to promote the industrial revolution, it is precisely because of the sufficient amount of copper provided by Tianyu Copper Mine, not only for the rapid economic development of the Great Sui to provide coinage of copper, but also for the manufacturing machine to provide enough copper, after the Sui Dynasty a large number of bronzes have also been preserved as antiques, leaving a lot of colorful and various exquisite bronzes to future generations.

Zhuo County, the soldiers from all the counties have gathered here, 10,000, 20,000...... By the time Qin Qiong and Cheng Yanjin arrived in Zhuozhou, Zhuozhou's soldiers and horses were at their peak, reaching more than 100,000 people, and these hundreds of thousands of horses turned the entire Zhuojun County into a large barracks.

Although Qin Qiong joined the army for the first time, he got a position as a chief because of the recommendation of the county order, and there are two special characters in his team, one is of course Cheng Yanjin, who is only fifteen years old, and the other is younger than Cheng Yanjin, only thirteen years old.

Although the government soldiers are not as elite as the forbidden army, they are all young and strong men with big shoulders and round waists, and no one is convinced by each other, Qin Qiong is over thirty years old and still has a little white face, Cheng Biting Jin is tall and strong, and a black face is supposed to be able to bluff people, but there is no hair on his mouth, and he is extremely immature at first glance, plus an age younger than Cheng Biting Jin, which makes people feel weak and bullied.

At the beginning, Qin Qiong's team was not a little laughable, even the veterans of the same group were extremely unconvinced by Qin Qiong and the others. often makes provocative remarks, if it weren't for the strict prohibition of armed fighting in the army, I'm afraid that some people would have been unkind to them a long time ago.

However, after a few days, everyone looked at Qin Qiong but felt afraid in their hearts, although it is strictly forbidden to fight in the army, however, the soldiers will always find an opportunity to take the opportunity to compete, in just a few days, Qin Qiong and the three of them beat dozens of people who provoked them, the thirteen-year-old child's martial arts compared to Qin Qiong, Cheng Biting Jin and the two of them were not bad at all, and one person beat more than a dozen people.

This thirteen-year-old child's surname is Luo Mingshixin, a native of Licheng in Qi County, and Qin Qiong is a fellow countryman, with his age, he is naturally not qualified to become a registered government soldier, hearing the imperial edict to recruit government soldiers, he actually ran out of his home to join the army, because he didn't bring much money, and there was no money on the way, and he was in a dilemma, and he happened to meet Qin Qiong and his party, Qin Qiong saw that he was a fellow countryman, and he had a rich bag, so he generously helped, and originally wanted Luo Shixin to take the plate and go home, after all, he was still young, Luo Shixin saw that Qin Qiong looked down on him, proposed to compete with Qin Qiong, but Qin Qiong had no choice but to let Cheng Yanjin compete with him.

Luo Shixin is two years younger than Cheng Biting Jin, and his body is almost half of Cheng Biting Jin, for Luo Shixin, Cheng Biting Jin looked down on him at the beginning, thinking that he could defeat with one hand, but he didn't expect to be given a dismount by Luo Shixin, and Cheng Biting Jin fell to the sky with four feet in the sky.

Seeing that Luo Shixin was so powerful, Qin Qiong agreed to leave him, and when he arrived in Zhuozhou, Qin Qiong could report with the registration of the government soldiers, but Cheng Yanjin and Luo Shixin took a lot of effort, and practiced martial arts in front of the officer in charge of registration and registration, so that they could become government soldiers and be separated from Qin Qiong.

This time, the emperor drove the expedition in person, many soldiers wanted to see the emperor with their own eyes, Cheng Yanjin and Luo Shixin were no exception, but unfortunately Zhuo County was still nearly a thousand miles away from the first line of the Liao River, in order to prevent the Goguryeo people from getting the news first to prepare, Yang Yong appointed the military department Shangshu He Ruobi as the front-line commander, and the government soldiers set off in advance immediately after gathering and training into an army in Zhuo County.

When Yang Yong's dragon boat arrived in Zhuo County, the government soldiers had been organized into ten armies, twenty regiments per army, ten teams per regiment, one hundred people per team, one army every twenty miles, a total of seven armies and ten regiments were sent in front, Zhuo County only left 50,000 horses, and the team to which Qin Qiong belonged belonged to the people and horses left in Zhuo County.