page_title: History of the Great Wall of China
section_title: Pre-imperial China (7th century–221 BC)
hierarchical_section_title: History of the Great Wall of China / Pre-imperial China (7th century–221 BC)
caption_attribution_description: English: Photograph of the remnants of the Great Wall of Qi in the Da Feng Shan (Big Peak Mountain) in Shandong Province, China.
context_page_description: The history of the Great Wall of China began when fortifications built by various states during the Spring and Autumn and Warring States periods were connected by the first emperor of China, Qin Shi Huang, to protect his newly founded Qin dynasty against incursions by nomads from Inner Asia. The walls were built of rammed earth, constructed using forced labour, and by 212 BC ran from Gansu to the coast of southern Manchuria.
  Later dynasties adopted different policies towards northern frontier defense. The Han, the Northern Qi, the Jurchen Jin, and particularly the Ming were among those that rebuilt, re-manned, and expanded the Walls, although they rarely followed Qin's routes. The Han extended the fortifications furthest to the west, the Qi built about 1,600 kilometres of new walls, while the Sui mobilised over a million men in their wall-building efforts. Conversely, the Tang, the Song, the Yuan, and the Qing mostly did not build frontier walls, instead opting for other solutions to the Inner Asian threat like military campaigning and diplomacy.
context_section_description: One of the first mentions of a wall built against northern invaders is found in a poem, dated from the seventh century BC, recorded in the Classic of Poetry. The poem tells of a king, now identified as King Xuan (r.  827 – 782 BC) of the Western Zhou dynasty (1046 – 771 BC), who commanded General Nan Zhong (南仲) to build a wall in the northern regions to fend off the Xianyun. The Xianyun, whose base of power was in the Ordos region, were regarded as part of the charioteering Rong tribes, and their attacks aimed at the early Zhou capital region of Haojing were probably the reason for King Xuan's response. Nan Zhong's campaign was recorded as a great victory. However, only a few years later in 771 BC another branch of the Rong people, the Quanrong, responded to a summons by the renegade Marquess of Shen by over-running the Zhou defences and laying waste to the capital. The cataclysmic event killed King Xuan's successor King You (795–771 BC), forced the court to move the capital east to Chengzhou (成周, later known as Luoyang) a year later, and thus ushered in the Eastern Zhou dynasty (770–256 BC). Most importantly, the fall of Western Zhou redistributed power to the states that had acknowledged Zhou's nominal rulership. The rule of the Eastern Zhou dynasty was marked by bloody interstate anarchy. With smaller states being annexed and larger states waging constant war upon one another, many rulers came to feel the need to erect walls to protect their borders. Of the earliest textual reference to such a wall was the State of Chu's wall of 656 BC, 1,400 metres (4,600 feet) of which were excavated in southern Henan province in the modern era. However the Chu border fortifications consisted of many individual mountain fortresses; they do not constitute to a lengthy, single wall.  The State of Qi also had fortified borders up by the 441 BC, and the extant portions in Shandong province had been christened the Great Wall of Qi. The State of Wei built two walls, the western one completed in 361 BC and the eastern in 356 BC, with the extant western wall found in Hancheng, Shaanxi. Even non-Chinese peoples built walls, such as the Di state of Zhongshan and the Yiqu Rong, whose walls were intended to defend against the State of Qin.
  Of these walls, those of the northern states Yan, Zhao, and Qin were connected by Qin Shi Huang when he united the Chinese states in 221 BC. The walls, known as Changcheng (長城) – literally "long walls", but often translated as "Great Wall" – were mostly constructed of tamped earth, with some parts built with stones. Where natural barriers like ravines and rivers sufficed for defence, the walls were erected sparingly, but long fortified lines were laid where such advantageous terrains did not exist. Often in addition to the wall, the defensive system included garrisons and beacon towers inside the wall, and watchtowers outside at regular intervals. In terms of defence, the walls were generally effective at countering cavalry shock tactics, but there are doubts as to whether these early walls were actually defensive in nature. Nicola Di Cosmo points out that the northern frontier walls were built far to the north and included traditionally nomadic lands, and so rather than being defensive, the walls indicate the northward expansions of the three northern states and their desire to safeguard their recent territorial acquisitions. This theory is supported by the archeological discovery of nomadic artifacts within the walls, suggesting the presence of pre-existing or conquered barbarian societies. It is entirely possible, as Western scholars like di Cosmo and Lattimore suggest, that nomadic aggression against the Chinese in the coming centuries was partly caused by Chinese expansionism during this period.
caption: Remnants of the Great Wall of Qi on Dafeng Mountain, Changqing District, Jinan, which was once part of the ancient State of Qi during the Warring States Period.
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