'China's Great Wall' was built 2000 years ago. Construction started in 5th century BC and is said many families over the wall and spread throughout the year. Great Wall is the longest man-made structure. Wall at a distance of 6,400 km spans.
Qin Shi wall Huangdi, which (Ch'in) dynasty from the first emperor of China was started. The wall in China, "Li Wan Qang Qeng" is called. Wall against nomadic tribes as a primary defense was built. King near the wall in the position to signal a warning about the attack. Initially, the wall was built with earth and gravel. Wall as resources that were available local resources, transportation was difficult to build. Rocks and gravel mountain ranges and plains near the ground were used. The wall came down curricula and repair and rebuilt several times by the ruling families have been.
During the Ming dynasty Great Wall was present. Ming northern frontier were defeated by the Mongols. So to protect yourself Ming walls built in northern direction strategy. Ming construction was of high quality bricks and stone instead they used the land. To cope with frequent attacks Ming walls allocate adequate resources to maintain.
Wall clock at regular intervals tower was equipped with. Most of the time the weapons, food and the tower. Step in the formation of China's Great Wall is very fast and tall in some areas. The Great Wall is visible from Earth's orbit.
Qin Shi wall Huangdi, which (Ch'in) dynasty from the first emperor of China was started. The wall in China, "Li Wan Qang Qeng" is called. Wall against nomadic tribes as a primary defense was built. King near the wall in the position to signal a warning about the attack. Initially, the wall was built with earth and gravel. Wall as resources that were available local resources, transportation was difficult to build. Rocks and gravel mountain ranges and plains near the ground were used. The wall came down curricula and repair and rebuilt several times by the ruling families have been.
During the Ming dynasty Great Wall was present. Ming northern frontier were defeated by the Mongols. So to protect yourself Ming walls built in northern direction strategy. Ming construction was of high quality bricks and stone instead they used the land. To cope with frequent attacks Ming walls allocate adequate resources to maintain.
Wall clock at regular intervals tower was equipped with. Most of the time the weapons, food and the tower. Step in the formation of China's Great Wall is very fast and tall in some areas. The Great Wall is visible from Earth's orbit.
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