Great Wall of China

Within a long time we had a thought to set up a website that could introduce the Great Wall of China to all over the world, which writings appearing in sources online and offline are often oversimple and centered generally on titles granted to the world's longest construction, and on travel information whose browsers might not know that the Great Wall is gasping under the burden of tourism.

The Great Wall is one of the largest building construction projects ever completed. It stretches across the mountains of northern China, winding north and northwest of Beijing. It is constructed of masonry, rocks and packed-earth. It was over 5,000 km (=10,000 Li) long. Its thickness ranged from about 4.5 to 9 meters (15 to 30 feet) and was up to 7.5 meters (25 feet) tall.

The wall was originally built of stone, wood, grass and earth. In the Ming Dynasty bricks were produced in kilns set up along the wall. The bricks were transported by men carrying them on their backs, donkeys, mules and even goats had a brick tied to their head before being driven up a mountain.

History

The Chinese were already familiar with the techniques of wall-building by the time of the Spring and Autumn Period, which began around the 7th century BC. During the Warring States Period from the 5th century BC to 221 BC, the states of Qi, Yan and Zhao all constructed extensive fortifications to defend their own borders. Built to withstand the attack of small arms such as swords and spears, these walls were made mostly by stamping earth and gravel between board frames. Qin Shi Huang conquered all opposing states and unified China in 221 BC, establishing the Qin Dynasty.

During the Ming Dynasty, however, bricks were heavily used in many areas of the wall, as were materials such as tiles, lime, and stone. The size and weight of the bricks made them easier to work with than earth and stone, so construction quickened. Additionally, bricks could bear more weight and endure better than rammed earth. Stone can hold under its own weight better than brick, but is more difficult to use. Consequently, stones cut in rectangular shapes were used for the foundation, inner and outer brims, and gateways of the wall. Battlements line the uppermost portion of the vast majority of the wall, with defensive gaps a little over 30 cm (one foot) tall, and about 23 cm (9 inches) wide.

Construction

The mystery of the construction of the wall is amazing. The construction of the Great Wall, drew heavily on the local resources for construction materials, was carried out in line with the local conditions under the management of contract and responsibility system. A great army of manpower, composed of soldiers, prisoners, and local people, built the wall. The construction result demonstrates the manifestation of the wisdom and tenacity of the Chinese people.

The Great Wall was renovated from time to time after the Qin Dynasty. A major renovation started with the founding of the Ming Dynasty in 1368, and took 200 years to complete. The wall we see today is almost exactly the result of this effort. With a total length of over 6,000 kilometers, it extends to the jiayu Pass in Gansu Province in the west and to the mouth of the Yalu River in Liaoning Province in the east. What lies north of Beijing is but a small section of it.

Much of the Wall is now in ruins but some parts of the the Great Wall of China have been repaired and are popular tourist attractions. Thousands and thousands of people visit each year.