page_title: China
section_title: Imperial China
hierarchical_section_title: China / History / Imperial China
caption_attribution_description: English: Along the River During the Qingming Festival, detail of the original version showing wooden bridge日本語: 清明祭の情景を描くja:清明上河図（せいめいじょうがず）の部分。12世紀 (北宋末期) の張択端 (中国語版 张择端) の作品とされる。
context_page_description: China, officially the People's Republic of China, is a country in East Asia. It is the world's most populous country, with a population of around 1.4 billion in 2019. Covering approximately 9.6 million square kilometres, it is the world's third or fourth-largest country by area. Governed solely by the Chinese Communist Party, the state exercises jurisdiction over 22 provinces, five autonomous regions, four direct-controlled municipalities, and the special administrative regions of Hong Kong and Macau.
  China emerged as one of the world's first civilizations, in the fertile basin of the Yellow River in the North China Plain. For millennia, China's political system was based on absolute and hereditary monarchies, or dynasties, beginning with the semi-mythical Xia dynasty in 21st century BCE. Since then, China has expanded, fractured, and re-unified numerous times. In the 3rd century BCE, the Qin reunited core China and established the first Chinese empire. The succeeding Han dynasty, which ruled from 206 BCE until 220 CE, saw some of the most advanced technology at that time, including papermaking and the compass, along with agricultural and medical improvements.
context_section_description: The Warring States period ended in 221 BCE after the state of Qin conquered the other six kingdoms, reunited China and established the dominant order of autocracy. King Zheng of Qin proclaimed himself the First Emperor of the Qin dynasty. He enacted Qin's legalist reforms throughout China, notably the forced standardization of Chinese characters, measurements, road widths (i.e., cart axles' length), and currency. His dynasty also conquered the Yue tribes in Guangxi, Guangdong, and Vietnam. The Qin dynasty lasted only fifteen years, falling soon after the First Emperor's death, as his harsh authoritarian policies led to widespread rebellion.
  Following a widespread civil war during which the imperial library at Xianyang was burned, the Han dynasty emerged to rule China between 206 BCE and CE 220, creating a cultural identity among its populace still remembered in the ethnonym of the Han Chinese. The Han expanded the empire's territory considerably, with military campaigns reaching Central Asia, Mongolia, South Korea, and Yunnan, and the recovery of Guangdong and northern Vietnam from Nanyue. Han involvement in Central Asia and Sogdia helped establish the land route of the Silk Road, replacing the earlier path over the Himalayas to India. Han China gradually became the largest economy of the ancient world. Despite the Han's initial decentralization and the official abandonment of the Qin philosophy of Legalism in favor of Confucianism, Qin's legalist institutions and policies continued to be employed by the Han government and its successors.
  After the end of the Han dynasty, a period of strife known as Three Kingdoms followed, whose central figures were later immortalized in one of the Four Classics of Chinese literature. At its end, Wei was swiftly overthrown by the Jin dynasty. The Jin fell to civil war upon the ascension of a developmentally-disabled emperor; the Five Barbarians then invaded and ruled northern China as the Sixteen States. The Xianbei unified them as the Northern Wei, whose Emperor Xiaowen reversed his predecessors' apartheid policies and enforced a drastic sinification on his subjects, largely integrating them into Chinese culture. In the south, the general Liu Yu secured the abdication of the Jin in favor of the Liu Song. The various successors of these states became known as the Northern and Southern dynasties, with the two areas finally reunited by the Sui in 581. The Sui restored the Han to power through China, reformed its agriculture, economy and imperial examination system, constructed the Grand Canal, and patronized Buddhism. However, they fell quickly when their conscription for public works and a failed war in northern Korea provoked widespread unrest.
  Under the succeeding Tang and Song dynasties, Chinese economy, technology, and culture entered a golden age. The Tang Empire retained control of the Western Regions and the Silk Road, which brought traders to as far as Mesopotamia and the Horn of Africa, and made the capital Chang'an a cosmopolitan urban center. However, it was devastated and weakened by the An Lushan Rebellion in the 8th century. In 907, the Tang disintegrated completely when the local military governors became ungovernable. The Song dynasty ended the separatist situation in 960, leading to a balance of power between the Song and Khitan Liao. The Song was the first government in world history to issue paper money and the first Chinese polity to establish a permanent standing navy which was supported by the developed shipbuilding industry along with the sea trade.
  Between the 10th and 11th centuries, the population of China doubled in size to around 100 million people, mostly because of the expansion of rice cultivation in central and southern China, and the production of abundant food surpluses. The Song dynasty also saw a revival of Confucianism, in response to the growth of Buddhism during the Tang, and a flourishing of philosophy and the arts, as landscape art and porcelain were brought to new levels of maturity and complexity. However, the military weakness of the Song army 
caption: A detail from Along the River During the Qingming Festival, a 12th-century painting showing everyday life in the Song dynasty's capital, Bianjing (present-day Kaifeng)
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