长城在中华民族的发展史上,在中国多民族的生存以及政治、经济、文化演化过程中,曾起到过重要的作用。在两千五百多年前的春秋战国时代,长城就已出现,历经秦、汉等历朝历代的改扩增筑,至明代形成了其历史上最为完整、最为严密的防御体系。至今保留给我们后人旅游、观赏的长城基本上以明代长城为主体,而其中蓟镇长城(包括八达岭、金山岭、慕田峪、山海关等处)又可以说是明长城中的经典之作。 In the history of the development of the Chinese nation, the Great Wall played an important role in the survival of many ethnic groups in China and its political, economic and cultural evolution. During the Spring and Autumn Period and the Warring States Period of more than 2500 years ago, the Great Wall had emerged. After the Qin and Han dynasties dynasties’ reforms and expansion, the Ming Dynasty formed the most complete and rigorous defense system in the history. So far reserved for our descendants to travel, watch the Great Wall is basically the Ming Dynasty Great Wall as the main body, of which the town of Jizhen (including the Badaling, Jinshanling, Mutianyu, Shanhaiguan, etc.) can be said that the Great Wall in the classic .