Luoyang.

In the past, the old land of Luoyi of the Zhou Dynasty, after more than 300 years of military rebellion in the Spring and Autumn Period and the Warring States Period, became a barren grass again from a prosperous time, this large city known as Luoyang, the capital in later generations, can only be regarded as a small city within the jurisdiction of Sanchuan County of Qin State, and the reason why it is because of the county governance is mainly because of its superior geographical location.

Hearing that Li Yuan led the army to come, Yang Xiong and Sima Yin, who returned to Luoyang early, greeted Shili, this time Li Yuan's performance surprised these two hesitant former Sanchuan County chiefs, this battle can be fought so bloody, so domineering, and so angry.

Who dares to lead a light army into the enemy city, behead the enemy, and fight the enemy?

Only General Lee.

Who dares to leap on a horse with a gun, gallop across thousands of armies and horses, and take the enemy's head like a bag?

Only I am General Li.

Who is there who is talking and laughing, pointing out the country, scolding Fang Xuan, and letting all the powerful people flee in embarrassment?

It's still me, General Li.

"General Li, are you okay all the way?" Sima Yin's spirits are flying, he has almost left the army, and now he is focusing on craftsman affairs, and the workshop in Luoyang has gathered craftsmen and craftsmen from various counties in Sanchuan County under the recruitment of Sima Yin, and the concentration of smelting craftsmen from Xiping and Handan has made Sima Yin's confidence much more sufficient.

Xiping is the smelting capital of South Korea, Handan is the former capital of Zhao State, these two places are rich in iron ore resources nearby, coupled with developed commerce, created the leading point of smelting technology in the two places, South Korea, Zhao and Zhao have specially set up iron officials to manage the iron smelting process, and iron as the main production tool, and some of the merchants who rely on iron trading to make a fortune are directly called iron merchants.

Among the iron merchants who came to Luoyang, Zhuo Gong of Shandong was one of them, due to the rebellion in the area of Donghai County, Zhuo Gong took his family all the way west, wanting to find a place to live, when he arrived in Luoyang, more than 30 people were exhausted, and saw the notice posted at the gate of the city to summon craftsmen, so he decided to vote.

The arrival of the Zhuo clan is just a group of many like-minded craftsmen and businessmen in the Kanto region, and their arrival has given Li Yuanjun, who is in the entrepreneurial stage, a start-up capital: talent.

"Sima craftsmen have worked hard, and along the way, I have seen a large number of business craftsmen, which is much more prosperous than a few months ago, and Luoyang has changed a lot." Li Yuan said with sincere admiration.

"General, come and see, from the west of the city to Luoshui, in addition to the blast furnace built and smelted by craftsmen on this way, several transshipment wharves are also built on Luoshui, and it won't take long for Luoyang to be much worse than Xingyang." Sima Yin is full of confidence, as a city builder and planner, his sense of achievement is no worse than being a first-class general. Obviously, after being clear about his positioning, Sima Yin put more energy into construction and development.

The change of a city, the development of heavy industry is the foundation, light industry, service industry is the auxiliary, Sima Yin did not have so much theoretical knowledge accumulation in later generations, he did to recruit craftsmen, build weapons, agricultural tools of a series of actions, indirectly let the Luoyang area gather a large number of handicraftsmen, the arrival of these people, but also led to the prosperity of other industries in the city.

The process of iron smelting, in the late Qin and early Han dynasties, has gradually matured, but compared with the bronze smelting technology that matured to the apex of the Qin State, the use of iron is still only in the initial stage, and the main restriction on the use of iron is the scarcity of raw materials.

Compared with the scarce iron ore, the Guanzhong area has rich copper ore resources, and it is buried in the shallow layer of the earth, which is a naturally occurring metal, and the favorable mining conditions make the bronzes of the Qin State become the pinnacle of this era in terms of craftsmanship, flexibility and sharpness.

After all, one is a mature product, the other is a shiyan product, and the risk of choosing unknown products is much greater than that of mature products, on the other hand, the time for the unification of Qin is too short, and Hu Hai, the emperor, is too fucked, and the original strict and orderly craftsmanship system has been gradually abandoned in the hands of Hu Hai and Zhao Gao.

Luoyang, a small city that carries Li Yuanjun's hopes and dreams, is also changing itself day by day, perhaps, one day, it will have a resounding name like later generations: Luoyang.

Punching and kicking, Li Yuan finally created a small foundation in Sanchuan County after a lot of effort, this little butterfly has now completed the initial transformation from chrysalis to butterfly, and began to take off with its wings and dance.

――。

February 1 of the third year of Great Qin II.

For reasons of secrecy and suddenness, Li Yuan's army hardly made any effective mobilization, but at the sound of an order, the whole army packed up and rushed to the unknown new battlefield.

Li Yuanjun's 6,000 elite soldiers went straight to Hangu Pass along the river, and among the 6,000 generals, including 1,000 cavalry, 2,000 crossbowmen, and 3,000 fully armed foot soldiers.

If everything goes well in the westward expedition, Sima Yin and they will also follow Li Yuanjun and migrate to the most fertile homeland of Qin, the Wei Plain that the old Qin people yearn for.

――。

Hangu Pass.

The car is not square, and the horse is not bridled.

According to the plateau in the west, the river in the east, the Qinling Mountains in the south, and the Yellow River in the north. In the history of the Spring and Autumn Period and the Warring States Period, the Qin State relied on this dangerous pass to resist the onslaught of the coalition forces of the Kwantung countries many times, and the importance of the Hangu Pass to the Qin State can be imagined.

After Qin unified the six countries, the status of Hangu Pass declined, in the eyes of the first emperor who owned the world, the 36 counties of the Qin State must have a straight road, convenient and fast has become the main choice of those in power in peacetime, and the steepness of Hangu Pass is obviously not in line with this principle.

After the collapse of the first emperor, the second emperor couldn't even take care of Xianyang, so naturally he would not strengthen the defense of Hangu Pass, and when Chen Sheng's vanguard Zhou Wen entered Hangu and approached Xianyang, Hu Hai and Zhao Gaofang hurriedly ordered Zhang Han to lead hundreds of thousands of Xing disciples to make meritorious contributions, and finally defeated Zhou Wen's troops.

After this fright, Prime Minister Zhao Gao finally understood the importance of Hangu Pass, the Qin army guarding Hangu Pass was strengthened, and 2,000 elite troops transferred from Xianyang replaced the county soldiers who were not strong in combat, and at the same time, the Hangu Pass order was also directly appointed by Zhao Gao, except for the order of the Prime Minister's Mansion, other orders could not be followed.