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In the thousands of years of history of the mainland, the Great Wall can be called one of the most representative cultural heritages.
Today, the Great Wall has become a famous attraction on the mainland, but in ancient times, the Great Wall was an important military fortification, used to defend against enemy attacks.
The Great Wall was built in the Western Zhou Dynasty and took more than 2,000 years of construction to become its current appearance.
It is the longest built and most heavily engineered ancient defense project on the mainland and in the world.
Its existence bears witness to the history of the continent and is also the crystallization of the wisdom of the ancients.
There are many countries that marvel that we have such a cultural heritage.
The United States also followed the mainland's example and wanted to spend 30 billion to build a Great Wall, but it has not succeeded.
History of the Great Wall
If we want to trace the history of the Great Wall, we must start from the Western Zhou Dynasty.
At that time, the Zhou Dynasty was often attacked by northern nomads. Because the opponent was physically strong and capable of fighting, the Zhou Dynasty had to do some defensive measures.
In order to resist the attacks of nomads, they built continuous wall lines, which are the prototypes of the Great Wall.
By the Spring and Autumn Warring States period, the struggle between countries became more and more intense.
In order to expand their power in various places, they continued the methods of the Western Zhou Dynasty and began to build the Great Wall on the borders of their respective domains.
After the construction and reinforcement of successive kings, the Great Wall has begun to take shape in the pre-Qin period, and the Great Wall at this time can be divided into the Northern Great Wall and the Southern Great Wall.
Later, Qin Shi Huang annexed the Six Kingdoms and ruled the world. In order to maintain the security of the Qin state, Qin Shi Huang made an important decision, that is, to build the Great Wall on a large scale.
At first, Qin Shi Huang still focused on maintenance and did not build a lot of construction. At this time, the amount of work was not large, and no human and financial resources were used.
In the later period, in order to build the Great Wall on a large scale, Qin Shi Huang used nearly one million laborers, which accounted for one-twentieth of the country's total population at that time.
When Qin Shi Huang built the Great Wall, it was not the time when the country and the people were safe, so he used such a large manpower to build the Great Wall, which made the people miserable.
However, in the historical environment at that time, the Great Wall did ensure the border security of the Qin State to a certain extent, and also provided a stable production environment for farmers.
The Great Wall of Qin stretched from Lintao in the west to Liaodong in the east, building a total of tens of thousands of li. It was also from this time that the Great Wall began to be called the Great Wall.
During the period of Emperor Wudi of Han, in order to resist the Xiongnu, the Great Wall built by Qin Shi Huang was repaired, and an outer Great Wall was built on this basis, with a total length of nearly 10,000 meters.
The Great Wall built during the Warring States period was completely abandoned at this time, losing its original defensive role.
The Great Wall did play a vital role in the development of the Han Dynasty and ensured the security of the Silk Road. During the Sui Dynasty, in order to deal with the Turks, Emperor Wen of Sui ordered the construction of the Great Wall to continue.
They also used a lot of manpower to build the Great Wall twice.
Although the Great Wall was not built on a large scale during the Tang Dynasty, there are historical records that they did build the Great Wall.
For example, three ancient ancient border walls in the territory of the current Mudanjiang River were built in the Tang Dynasty.
The Great Wall project during the Ming Dynasty was mainly extended and repaired on the basis of the Sui Great Wall, while building hollow wall platforms and using bricks and stones to make the Great Wall stronger.
The Ming Dynasty can be said to be the last dynasty to build the Great Wall on a large scale, and most of the Great Wall seen now was completed during this period.
The construction process of the Great Wall
The Great Wall has been built for more than 2,000 years, and its construction methods have been very mature.
Since the beginning of the Qin Shi Huang period, the method of "using danger to make congestion due to the terrain" has been proposed.
Because this experience was so effective, every subsequent dynasty continued this approach.
Today's Great Wall is not a single wall, but a wall inside.
As an important military defense base, the Great Wall is mainly composed of fortifications such as city walls, camp castles, enemy towers, guard posts and beacon towers.
The height of the walls averages 7.8 meters, and the highest place can reach 14 meters.
The beacon tower in the Great Wall is mainly used to transmit intelligence, and the beacon tower appeared earlier than the Great Wall, which can make the military situation convey thousands of miles away.
Because of its important role, the Great Wall was built with a beacon system.
Guancheng is the main defense point, and if Guancheng is built on favorable terrain, it can achieve the effect of "one husband is the pass, and no one can open it".
Because there was no reinforced concrete in ancient times, the Great Wall was mainly built using local materials, including rammed earth, masonry, etc.
If it is built in a desert area, it will also be built using reeds and sand grains. Until the Ming Dynasty, brick-making technology developed, and the construction of the Great Wall became more and more exquisite.
In addition to being stronger on the inside, the appearance is also more beautiful, and many architectural decorations are from this period.
In addition to consuming a lot of financial resources, the most important thing in the construction of the Great Wall is that a large number of human resources were mobilized.
Especially the Qin and Sui dynasties, in order to achieve the effect of rapid construction of the Great Wall, they dispatched millions of people.
These people not only sweated on the Great Wall, but many others paid with their lives for it.
The United States wants to spend 30 billion to build a Great Wall
As one of the most important historical and cultural heritage sites in the mainland, the Great Wall is one of the best in the world.
Because of this, many countries want to emulate the mainland and also build a great wall, of which the United States is the strongest.
Back in Washington, the United States wanted to build the Great Wall.
At that time, they wanted to use the defense function of the Great Wall to ensure the safety of the Indians.
After some thought, Washington decided to build a fan-shaped Great Wall into the Gulf of Mexico, starting with Lake Erie.
It's just that this plan died before it even began.
At that time, the United States was not strong and sparsely populated. To build such a big project is simply impossible.
So at the beginning of the plan, anticipating the need for a lot of human and financial resources, Washington abandoned the idea.
In the end, we can only look at the Great Wall of our country, and we can't see the dust.
Although Washington did not succeed.
But every U.S. president, when invaded by borders and outsiders, has put the construction of the Great Wall on the agenda again.
Especially after the 911 incident, the United States increasingly felt the importance of having fortifications.
After Trump took office, he put down the sentence that he must build a great wall between the United States and Mexico to keep all illegal immigrants from Mexico out.
Because the United States is close to Mexico, they are opposite Ciudad Juárez, Mexico, known as the "Capital of Violence".
It is home to a large number of illegal immigrants, seriously endangering the safety of people at the U.S. border.
Against this backdrop, building the Great Wall is a good idea.
However, Trump's words quickly sparked heated discussions.
Many people think that he is not self-sufficient, after all, how can he emulate the Great Wall that China has spent more than 2,000 years to build.
But Trump doesn't think so. He felt that the Great Wall built on the mainland thousands of years ago, using the advanced technology now, would definitely be able to replicate.
Moreover, the current United States is not the Washington period, and its human and financial resources are relatively sufficient.
Nor are they trying to build a Great Wall like China, as long as it can intercept the U.S. border and Mexico.
So when it comes to building a Great Wall, Trump is confident.
So why haven't you seen the Great Wall of America until now?
Apparently they did not succeed.
The United States was ready to spend 30 billion dollars to build the Great Wall, which in their eyes was already a huge investment.
But it's not enough to really calculate it.
Although the original Great Wall on the mainland was built from local materials, using rammed earth, stone chips, sand grains, etc. But after the repair of successive kings, it is already very strong.
Especially during the Ming Dynasty, bricks were already used to build.
If the United States also uses bricks to build, then at the current market price, the price of a brick is close to 4 yuan.
According to relevant data, it is estimated that 6,000 square bricks are needed to build 1 cubic meter of brick wall.
At the same time, we also need to use mortar for coating, the price of mortar is higher, calculating that it costs nearly 27,000 yuan to build 1 square meter.
If the United States wants to build a 10,000-kilometer Great Wall, it will cost 200 million yuan for construction materials alone.
You may see that everyone will think that the budget is 30 billion, isn't it only 200 million?
It is necessary to know that building materials are the most basic expenses, in addition to a lot of construction costs, labor costs and machinery costs.
In particular, manpower, if it is to be built quickly, needs at least hundreds of thousands of people.
If these people's monthly wages are calculated at 5,000 yuan, then labor costs alone are a big expense.
If you don't use square bricks to build, use stone instead.
Although the price of stone is relatively cheap, a large number of stones need to be mined, and the mining fee is much greater than the cost of square bricks.
Someone once calculated Trump's Great Wall plan if only a section of the wall was built as he requested.
Then a conservative estimate would cost at least $150 billion, which far exceeded his budget of $30 billion.
This is also the reason why the United States wants to build the Great Wall but has not started construction.
In fact, not only the United States, but also many countries covet the Great Wall of the mainland.
Japan, for example, is an island country and does not have neighbors like the United States, but they are often hit by tsunamis.
So Japan's leaders also wanted to build a Great Wall to withstand tsunamis.
Similarly, after they finished budgeting, they chose to give up.
If you want to build a Great Wall that can withstand tsunamis, even if you only build a 12.5-meter-high wall, it will cost 40 billion yuan.
So far, no country has been able to build the Great Wall of China. This is enough to see the wisdom of our ancients and the long history and culture of the mainland.
These are things that other countries cannot steal and learn.
In this way, it is a joke that the United States wants to spend 30 billion to build a Great Wall.
The Great Wall is unique to our country, and it was built by the ancients with sweat and tears. Its value cannot be measured in money.
The Great Wall was inscribed on the World Heritage List in 1987 and has become a World Heritage Site.
Now the Great Wall has become a famous attraction on the mainland. In the past, it made outstanding contributions to all the kings.
Therefore, as a modern person, we should also remember Chinese history, and at the same time love the Great Wall, so that it can stand forever.
epilogue
Some people say that from the moment it was built, the Great Wall heralded the unification of the Chinese nation. If you think about it, that's true.
The construction and improvement of the Great Wall is of great significance to the history of the mainland, and it has led us to prosperity and the new century.
We are proud that our country has such a great wall. Any country that wants to follow suit is self-inflicted, and the United States is an example of this.
Until now, they have not been able to build a Great Wall. Of course, not only the United States, but every country has not found a way to build the Great Wall.
And the Great Wall of the mainland, if we take good care of it and carefully repair it, it can exist for at least a few centuries.
It shows the strong will and majestic physique of the mainland people, and they will be proud to be Chinese.
Finally, I would like to ask everyone, what do you think about the United States spending 30 billion to build the Great Wall? Do you think they will have a chance of success later?
You are welcome to leave a message below and tell us your opinion.