Far back to the Western Zhou Dynasty in the 9th century BC, people began to build beacon towers along the borderline. When the enemy came, people used fires on the towers to provide early warning. During the Spring and Autumn andWarringStatesperiods (770-221BC), mutually defensive beacon towers were also built along the national boundaries between various countries. In the middle of the 7th century BC, in order to link up various isolated beacon towers bordering the State ofQin,ChuStatewas the first to set up city walls, becoming the earliest part of the Great Wall. Later, similar walls were built one after another by various states. After Emperor Qinshihuang unifiedChina, he demolished the walls between the various states, leaving behind only those of Yan, Zhao and Qin and linked them together, so as to resist the attack by northern nomadic people. This section of the Great Wall goes west from Lintao and east to Liaodong.
Today, the practical functions of the Great Wall as defense work no longer exist, but its beauty has long remained up to this date, becoming the object of beauty for sightseeing.
The Great Wall extends mostly along the undulating mountain ridges, with close interdependence of precipitous topography-mountains and walls in the outer side of the mountain ridges often made use of to reinforce the structure. The mystical picture resulting from the combination of points, lines and areas formed by the majestic passes, rotating city walls, strong towers, turrets, enemy fortresses and solitary and unique beacon towers have all become part of the rhythm of beauty. The beauty of the Great Wall comes from its grandeur, a kind of noble beauty characterized by magnificence, firmness, grandeur and boldness. It is an expression of the pioneering spirit of the Chinese who pursue peace and dare to make progress, conveying deep national sentiment.
Therefore, the Great Wall is not only beautiful, but is also a symbol of the character of the Chinese nation. It is clear that the nature of architectural art not only demonstrates the form of a certain beauty, it also demands playing up a certain kind of strong feeling, temperament and interest, countenance and appeal and finally exhibiting a tendency related to a certain thought and concept. If stressing esthetic beauty that only pleases the eye is shallow delight, then stressing the artistic beauty that gladdens the heart is all the more a pursuit of artistic conception, and richer and deeper heart-stirring sincerity.
Based on the broad and profound Chinese culture,China's architecture has gained unique and great achievements, giving a profound expression to a culture which is the pride of the Chinese people.