Qin dynasty
The Qin dynasty was the first imperial dynasty of China. It is named for its progenitor state of Qin, a fief of the confederal Zhou dynasty. Beginning in 230 BC, the Qin under King Ying Zheng engaged in a series of wars conquering each of the rival states that had previously pledged fealty to the Zhou. This culminated in 221 BC with the successful unification of China under Qin, which then assumed an imperial prerogativewith Ying Zheng declaring himself to be Qin Shi Huang, the first emperor of China, and bringing an end to the Warring States period. This state of affairs lasted until 206 BC, when the dynasty collapsed in the years following Qin Shi Huang's death. The Qin dynasty's 14-year existence was the shortest of any major dynasty in Chinese history, with only two emperors. However, the succeeding Han dynasty largely continued the military and administrative practices instituted by the Qin; as a result, the Qin have been credited as the originators of the Chinese imperial system that would endure in some form until the Xinhai Revolution in 1911.
Qin was a minor power for the first several centuries of its existence; its strength greatly increased in the 4th century BC, in large part owing to the administrative and military reforms of Shang Yang. They sought to create a strong, centralised state and a large army supported by a stable economy, which were developed in the Qin homeland and implemented across China following its unification. Reforms included the standardisation of currency, weights, measures, and the writing system, along with innovations in weaponry, transportation and military tactics.
The central government sought to undercut aristocrats and landowners and administer the peasantry directly, who comprised the vast majority of the population. This enabled numerous large-scale construction projects involving the labour of hundreds of thousands of peasants and convictswhich included the connection of walls along the northern border into what would eventually become the Great Wall of China, a large national road system, and the city-sized Mausoleum of Qin Shi Huang guarded by the life-sized Terracotta Army. The state possessed an unprecedented capacity to transform the environment through the management of people and land; as a result, Qin's rise has been characterised as one of the most important events in East Asian environmental history.
When Qin Shi Huang died in 210 BC, two of his advisors placed an heir on the throne in an attempt to exert control over the dynasty and wield state power. These advisors squabbled among themselves, resulting in both of their deaths and that of the second Qin emperor. Popular revolt broke out, and the weakened empire soon fell to Chu generals Xiang Yu and Liu Bang, the latter of whom founded the Han dynasty.
History
Origin and development, 9th century – 230 BC
According to the Shiji, during the 9th century BC, Feizisaid to be a descendant of the legendary political advisor Gao Yaowas granted rule over the settlement of Qin. During the rule of King Xiao of Zhou, this area became known as the state of Qin. In 897 BC, during the Gonghe Regency, the area was allocated as a dependency dedicated to raising horses. In the late 8th century BC, one of Feizi's descendants, Duke Zhuang of Qin, was summoned by the Zhou to take part in a military campaign against the Western Rong; the effort was successful and Zhuang was rewarded with additional territory. In 770 BC, Zhuang's son Duke Xiang helped escort the Zhou court under King Ping in their emergency evacuation from Fenghao to Chengzhou under threat from the Western Rongmarking the divide between the Western and Eastern Zhou periodisations. As a reward, Duke Xiang was sent as the leader of an expedition against the Western Rong to recapture the territory they had taken, during which he formally established the Qin as a major vassal state, incorporating Fenghao and much of the territory previously under direct Zhou control and thus expanding Qin eastward.The state of Qin began military expeditions into central China in 672 BC, initially refraining from serious incursions due to the threat still posed by neighbouring tribes to their west; by the 4th century BC, they had all either been subdued or conquered, setting the stage for Qin expansionism.
Warring States period, c. 475–230 BC
During the Warring States period, the Qin statesman Shang Yang introduced a series of advantageous military reforms between 359 BC and his execution in 338. He also helped to construct the Qin capital at Xianyang on the Wei River near the former Zhou capital of Fenghao, a city which ultimately resembled the capitals of the other states. The Qin maintained a military that was superior in both doctrine and practice to that of the other Warring States. Its army was large, efficient, and staffed with capable generals. Unlike many of their enemies, the Qin utilised contemporary advancements in weapons technology and transportation, the latter of which enabled greater mobility across the different types of terrain throughout China.The geography of Qin's core territorieslocated at the heart of a region known as the Guanzhongprovided additional advantages, including fertile farmland, and a strategic position protected by mountains that made it a natural stronghold. The Guanzhong was in contrast with the flat, open Yangtze valley to its south-eastduring this period, Xianyang was the only capital city in China that did not require walls to be built around it. The legacy of Qin society within the Guanzhong inspired a Han-era adage that "Guanzhong produces generals, while Guandong produces ministers." The Qin's agricultural output helped sustain their large army, first expanded by Shang Yang's reforms and irrigation projects, and later via projects like the Wei River canal in 246 BC, said to have been engineered by Zheng Guo.
Qin engaged in practical and ruthless warfare. From the preceding Spring and Autumn period, the prevailing philosophy had dictated war as a gentleman's activity; military commanders were instructed to respect what they perceived to be Heaven's laws in battle. For example, during a war Duke Xiang of Song was waging against Chu, he declined an opportunity to attack Chu forces that were crossing a river. After allowing them to cross and marshal their forces, he was decisively defeated in the ensuing battle. When he was admonished by his advisors for excessive courtesy to the enemy, he retorted, "The sage does not crush the feeble, nor give the order for attack until the enemy have formed their ranks." The Qin disregarded this military tradition, taking advantage of their enemy's weaknesses. A nobleman in the state of Wei accused Qin of being "avaricious, perverse, eager for profit, and without sincerity. It knows nothing about etiquette, proper relationships, and virtuous conduct, and if there be an opportunity for material gain, it will disregard its relatives as if they were animals." This, combined with strong leadership from long-lived rulers, an openness to employ talented men from other states, and a lack of internal opposition, contributed to the Qin's strong political base.
Unification and expansion, 230–210 BC
During the Warring States period, the seven major states vying for dominance were Qin, Yan, Zhao, Qi, Chu, Han, and Wei. The rulers of these states styled themselves as kings, as opposed to the titles of lower nobility they had previously held. However, none elevated himself to believe that he had the Mandate of Heaven as claimed by the kings of Zhou, nor that he had the right to offer sacrifices.During the century that preceded the wars of unification, the Qin suffered several setbacks. Shang Yang was executed in 338 BC by King Huiwen due to a personal grudge harboured from his youth. There was also internal strife over the Qin succession in 307 BC, which decentralised Qin authority somewhat. The Qin was defeated by an alliance of the other states in 295 BC; this was soon followed by another defeat inflicted by Zhao, made possible by a majority of the Qin army already being occupied with defending against attacks by Qi. However, the aggressive became prime minister in 266 BC; after issues with the succession were resolved, Fan pursued an expansionist policy that had its origins in Jin and Qi, in which they endeavoured to conquer the other states.
The Qin first attacked the Han directly to their east, and took their capital city of Xinzheng in 230 BC. They then struck the state of Zhao to their north, who surrendered in 228 BC, followed by the northernmost state of Yan in 226. Next, Qin launched assaults to the east and south; they took the Wei capital of Daliang in 225, and forced Chu to surrender in 223. They then deposed the Zhou dynasty's remnants at Luoyang; finally, they conquered Qi, taking their capital at Linzi in 221 BC.
With the completion of Qin's conquests in 221 BC, King Zhengwho had acceded to the throne of Qin at age ninebecame the effective ruler of China. The subjugation of the six states was done by King Zheng who had used efficient persuasion and exemplary strategy. He solidified his position as sole ruler with the abdication of his prime minister, Lü Buwei. The states made by the emperor were assigned to officials dedicated to the task rather than place the burden on people from the royal family. He then combined the titles of the earlier Three Sovereigns and Five Emperors into the new name "Shi Huangdi", meaning 'First Emperor'. The newly declared emperor ordered all weapons not in the possession of the Qin to be confiscated and melted down. The resulting metal was sufficient to build twelve large ornamental statues at the Qin's newly declared capital at Xianyang.