Great Wall of China
It is one of the most prominent seven worldly wonders that man made, as it is the longest building that mankind has seen during the ages, it extends from the northern to northwestern borders of China, where it reaches nearly 2,400 kilometers, and its construction dates back to two thousand years, it is one of the most important monuments and tourist sites In China, where tourists from all over the world flock to it, the Great Wall of China won the cycling Olympic Games in 2008.
History of the construction of the Great Wall of China
Emperor Qin Shi Huang ordered the construction of the Great Wall of China in 221 BC, and the construction of the first parts of it dates back to Turkey’s Sobu Changhu, and the idea of building it was based on the defense wall of the state against the Mongols and the Turks, and the Chinese completed the construction in 204 BC, as it contributed to the construction This wall has 300,000 workers, and it took nearly 300 years to build it.
The materials used to build the Great Wall of China
The Great Wall of China was distinguished by its mediating natural terrain, as its location is characterized by its location between deserts, rivers and mountains. Dedicated to drain the water that collects in it, in addition to rain water that protects the wall from collapses.
The Great Wall of China was also built of stone and mud, where it was completely covered with bricks, and the width of the fence reaches nine meters, and the height is eight meters. The wall was supported by guard towers of twelve meters in length, and between each tower and tower is approximately one hundred meters.
Reasons for building the Great Wall of China
The main goal of building the Great Wall of China is to protect the borders of China from aggressors or surprise attacks, as it was used for migration, and it is a major corridor for transportation, and millions of workers have died during the construction of this wall, and they were buried near it, so it was known that it is the longest cemetery on the ground And many military attacks were launched on parts of the fence for multiple times, which caused its demolition and re-restoration, and what remains of the fence is the eastern side of it that extends for a distance of kilometers, in addition to some effects in different locations, as the Chinese invented gunpowder and used it To defend the Great Wall, also Of the vehicle to the invention manual that contributed to the construction of the wall significantly.