In the spring of the fourth year of the Great Qin Kaiyuan.

The emperor drew a few lines on the map, and the whole world began to get busy around these lines.

The first line, the re-dredging of the North-South Grand Canal, the imperial court set up four canal transfer envoys, respectively responsible for the Hebei section of the canal, the Henan section, the Huainan section and the Jiangnan section, the four transfer envoys have their own transfer envoy Yamen, they are responsible for the dredging of the canal, the taxation of the river pass, the maintenance of the embankment, and the safety of the water transportation.

The second line drawn by the emperor was to rebuild the Qin Straight Road from the north of Chang'an in Guanzhong. At that time, Qin Shi Huang ordered the construction of a road from Yunyang to Wuyuan County in Hetao, which was more than 700 kilometers long.

The road was still in use at this time, but in many places it fell into disrepair.

The reason why the emperor drew the second line on this Qin straight road is that Great Qin has now recovered the land of Hetao. The Yellow River is harmful, only rich in one set, the Hetao is a granary plugged, if you want to guard the northern Xinjiang, this granary is extremely important to Daqin.

However, although the Hetao is rich, it also has a very fatal problem, that is, it is separated from Guanzhong by a huge desert Gobi, which is too large and difficult to pass through.

If you don't directly cross the Hengshan Mountains and the desert in the north from the north to the north, you can only go north along the east bank of the Yellow River to the west, or go north along the west bank of the Yellow River to the east, but these two routes have a problem, one is to go around a farther road, and the other is to go along the Yellow River, especially the east route, which will face countless rivers and valleys in the east-west direction, and with this ability at that time, it is difficult to continue to cross these rivers to build a straight road.

If you have to constantly bypass these rivers, the road will be extended indefinitely.

It is precisely because of these reasons that the Qin Emperor finally ordered the construction of a straight road to the north to reach Wuyuan.

To cross the Hengshan Mountains, to cross the vast desert, especially to the north, and to cross many valleys and rivers, the Qin people at that time came up with a brilliant idea, that is, to build this road on the watershed of the Meridian Ridge.

A road was built along the ridge, and ten horse-drawn carriages could be used in parallel.

The Meridian Ridge is not low, but it is not extremely high, this is a height that can be used to build roads and walk, and at the same time, the climate of Guanzhong and the terrain make it relatively easy to build roads on the mountain ridge.

The most important point is that by building the road in this way, it perfectly bypasses those valleys and valleys on both sides of the Meridian Ridge, and there is no need to fill in the mountain frame river, and directly pass through the ridge.

It has arrived at the south side of Dingbian County, Shuofang, and then entered the Ordos Plateau to the north, and since then has been crossing the Yellow River in the Zhaojun Tomb to the north, and arriving at the Baotou area in the later generations.

This route has greatly reduced the distance from Guanzhong to Wuyuan, especially the road from Yunyang in Guannei to Shuofang Dingbian, which is full of mountains and valleys, and it can be said that this route is simply a miracle.

The 1,500 miles of straight, with an average width of 10 zhang, not only avoided the valley rivers, but also because it was built on the watershed ridge, so that he was not far from the water source, which was extremely important for the march of soldiers and horses and the transportation of supplies.

It was not until recent years that a Yellow River Highway along the Grand Canyon of the Yellow River in Shanxi Province was built, which shows how remarkable the Qin Straight Road is.

It's just that after the Qin Dynasty, the grasp of the Hetao was not firm, so this straight road did not achieve the purpose originally designed by Qin Shi Huang.

This road design is an offensive road, which is connected between Guanzhong and Hetao.

However, after the Qin Dynasty, in order to prevent the Hu people in the north from going directly south along this road, the imperial court adopted a conservative defensive strategy against this straight road. They contacted the Hetao, and more often used Yunzhong County in Daibei to control the Hetao with the support of Yunzhong in Yanmen, Taiyuan. Or, many times, it is the Hu people who use the clouds to contain the Hu people who defend the Hetao.

At the same time as repairing the Qin Straight Road, the emperor also drew a line, opening a waterway from Lingwu to Yulin County, and creating a water transportation line for the entire zigzag Hetao area, which is a relatively gentle section of the Yellow River.

Many sections of the Yellow River are not navigable, but the river surface around the Hetao is more than 1,000 miles away, but it is suitable for navigation and can be transported by boat.

Therefore, the Qin Straight Road was repaired, and the land passage from Guanzhong to Jiuyuan City through the 1,500-mile straight road was opened, and at the same time, the emperor also opened up the Yellow River shipping from Lingwu to Yulin.

After the shipping was opened, Guanzhong and the Hetao were no longer tied together by a thin thread.

At the same time, a Yellow River route can also connect Chang'an, Hexi, Longyou, Shuofang, and Dingxiang together.

1,500 miles of straight roads, 1,500 miles of waterways, Guanlong Heshuo is completely opened up and connected.

The third line drawn by the emperor is from Tongba County in Hanzhong, and then to Guizhou, connecting Yunnan and Guangnan, and connecting with Jiannan.

This southwest artery is completely to collude and connect the entire southwest provinces and revitalize them together.

The emperor drew several lines, and the entire northwest and southwest regions became huge construction sites.

The shipyards that can be seen everywhere are full of lumber mills, and the rivers and valleys are dragged along the way, and according to the emperor's route, these old roads along the way are to be connected.

This is a big project, and almost all the counties in the southwest and northwest have been mobilized.

Every day, new ships enter the water, cars and horses gallop on the roads, groups of slaves are sent over, and countless people respond to the call of the government to be hired to build roads and make money.

All counties and counties of Zhudao shall implement comprehensive planning, and then divide them into sections and do special work.

Open the road in the mountains, build bridges in the water, a fort every ten miles, a post station every twenty miles, a military station in thirty miles, and a military fort in fifty miles.

This one, a team came along the Hanqian Road, which was beginning to take shape.

A young man in the team looked at the people who were building roads along the way, and he had long lost the curiosity and excitement he had at the beginning, his name was Li Sanlang, also known as Li Sanbao, a native of Luling County, Jiangnan West Province, who was poor in a small family, so he entered the shop as a buddy apprentice. The apprentices of this era are not as simple as those of later generations, and they have to worship the master when they enter the shop, and they don't let you learn anything in the first three years, just work as a handyman and wait for the master.

In the words of the master, this is to sharpen the character of the child, it is not difficult to learn the craft, but it is difficult to raise the mouth. If the apprentice is impatient and can't stand it for three years, he will be expelled and will not be able to teach the skill at all. Even after the first three years, the master did not pass on the craft to you all at once.

In the second three years, only the basic skills are taught, and the work of waiting for the master is not exempt. Wait until the third three years, so that you can get started with some simple, the fourth three years have passed, can barely be regarded as a teacher, but you have to continue to work for the master in the shop, there is no random job hopping, and even the first ten years of the guy, basically no salary, can stutter is good, and send something again during the New Year's holidays, even if the master is generous.

If there was no turmoil at the end of the Sui Dynasty, maybe Li Sanbao would have been qualitated like this in this life, staying up for three years and three years, from apprentice to buddy, and then to steward to shopkeeper, when he is old, he may be able to save a small amount of money, and then return to his hometown to buy some land and enjoy his old age in peace.

It's just that the world is in turmoil, last year he went north with his master to Yuzhang County to do business, but he encountered Lin Shihong and Shen Faxing's two battles, the master was killed, the goods were taken away, and he jumped into the river to escape with his life. Later, he swam to the north bank of the Yangtze River and became a wanderer.

Fortunately, he was lucky, and at this time, the north was unified and relatively more stable.

Although the three feudal feudatories in the south were under the Zhengshuo of the Qin State and the northern were not in the south, the three feudatories themselves still attacked each other continuously.

Taxes are also high, and there are various apportionments, so many people in the south of the Yangtze River secretly crossed the river to the north, and the Great Qin court has always welcomed these people from the south.