Nanjing is the capital of Jiangsu, East China. The city, which is located in the southwestern corner of the province, has 11 districts, an administrative area of 6,600 square kilometres (2,500 sq mi), and as of 2021 a population of 9,423,400.
Situated in the Yangtze River Delta, Nanjing has a prominent place in Chinese history and culture, having served as the capital of various Chinese dynasties, kingdoms and republican governments dating from the 3rd century to 1949, and has thus long been a major center of culture, education, research, politics, economy, transport networks and tourism, being home to one of the world's largest inland ports. The city is also one of the fifteen sub-provincial cities in the People's Republic of China's administrative structure, enjoying jurisdictional and economic autonomy only slightly less than that of a province. It has also been awarded the title of 2008 Habitat Scroll of Honor of China, Special UN Habitat Scroll of Honor Award and National Civilized City. Nanjing is also considered a Beta (global second-tier) city classification, together with Chongqing, Hangzhou and Tianjin by the Globalization and World Cities Research Network, and ranked as one of the world's top 100 cities in the Global Financial Centres Index.
As of 2021, Nanjing has 68 institutions of higher learning, including 13 double-first-class universities, ten 111-plan universities, eight 211 universities, and 97 academies. Nanjing University, which has a long history, is among the world's top 10 universities ranked by the Nature Index. The ratio of college students to the total population ranks No.1 among large cities nationwide. Nanjing has the fifth-largest scientific research output of any city in the world. As of 2024, it has been ranked as the world's second most prolific scientific research center in earth and environmental sciences and the world's third most prolific scientific research center in chemistry and physical sciences, according to the Nature Index.
Nanjing, one of the nation's most important cities for over a thousand years, is recognized as one of the Four Great Ancient Capitals of China. It has been one of the world's largest cities, enjoying peace and prosperity despite various wars and disasters. Nanjing served as the capital of Eastern Wu (229–280), one of the three major states in the Three Kingdoms period; the Eastern Jin and each of the Southern dynasties (Liu Song, Southern Qi, Liang and Chen), which successively ruled southern China from 317 to 589; the Southern Tang (937–75), one of the Ten Kingdoms; the Ming dynasty when, for the first time, all of China was ruled from a single city (1368–1421); and the Republic of China (1927–37, 1946–49), serving as the internationally recognized capital of China and the seat of the central government of China under the Kuomintang, until the government's relocation to Taipei at the conclusion of the Chinese Civil War. The city also served as the seat of the rebel Taiping Heavenly Kingdom (1853–64) and the Japanese-installed collaborationist regime of Wang Jingwei (1940–45) during the Second Sino-Japanese War. It suffered devastating atrocities in both conflicts, most notably the Nanjing Massacre of 1937–38.
Nanjing became the capital city of Jiangsu province in 1952, after serving as a Direct-administered Municipality from 1949 to 1952 following the establishment of the People's Republic of China. It has many important heritage sites, including the Presidential Palace, Sun Yat-sen Mausoleum and Ming Xiaoling Mausoleum. Nanjing is famous for human historical landscapes, mountains and waters such as Fuzimiao, Ming Palace, Chaotian Palace, Porcelain Tower, Drum Tower, Stone City, City Wall, Qinhuai River, Xuanwu Lake and Purple Mountain. Key cultural facilities include Nanjing Library, Nanjing Museum and Jiangsu Art Museum.
The name "Nanjing" (literally "Southern Capital") was formally established to designate the modern-day city in 1368, the first year of the Ming dynasty. Upon establishing his capital there, the Hongwu Emperor officially named it "Southern Capital" to distinguish it from the "Northern Capital" at Kaifeng. The name later served as a counterpart to the Northern Capital, Beijing.
Nanjing, formerly romanized as Nanqim, Nankin, and Nanking, was also transcribed in the Wade–Giles system as Nan-ching.
There was a yi (settlement) known as Jinling (Chinese: 金陵; pinyin: Jīnlíng; lit. 'Ridge with the Gold') around the 4th century BCE in the area—mentioning the specific metal that later lore insisted must have been buried by the Chu monarch, before it was renamed Moling (Chinese: 秣陵; pinyin: Mòlíng; lit. 'Haltered Ridge') after Qin's unification. Between 624 and 626, the name "Jinling" was briefly restored as a county designation. By the early 10th century, the Yang Wu regime once again designated this area as Jinling. In the early Republican era, Jinling Circuit was established to administer Nanjing and its surrounding counties.
At the turn of the 4th century, Jiangning (Chinese: 江寧; pinyin: Jiāngníng; lit. 'Tranquil Jiang[nan]') county was established to the southwest of the former Eastern Wu capital, with its seat located in what is now Jiangning Subdistrict. Following the Sui dynasty's destruction of Jiankang, several counties within the former metropolitan area were annexed into Jiangning, and this remained the primary designation for the county until the mid-Tang period.
In 761, Emperor Suzong of Tang renamed the area Shangyuan (Chinese: 上元; pinyin: Shàngyuán; lit. 'Upper Prime'), after his regnal era. In 917, Jiangning county was partitioned from the southern territories; since then, both county seats came to be located within the same walled city. Subsequently, during the periods of 937–975, 1018–1129, and 1645–1911, the Nanjing region was designated as Jiangning Prefecture, with Shangyuan long serving as the prefectural seat.
Pre-imperial and early imperial eras
Human habitation in the Nanjing region dates to the Neolithic period. Sites near the modern urban core, including the type-site of the Beiyinyangying (北阴阳营) culture, contain a cemetery with 225 burials and grave goods like polished stone tools, jade, and agate, indicating connections with the Lake Tai region. Incised pictorial marks on zun pottery vessels have also been recovered from Beiyinyangying and related late Dawenkou-period deposits.
The lower strata of the Dianjiangtai (点将台) site in Pukou are contemporaneous with the Erlitou period and predate the Bronze Age Hushu (湖熟) culture, which characterized the Ning–Zhen (Nanjing–Zhenjiang) area during the second millennium BCE.
At the Xijie (西街) site on the south bank of the Qinhuai River, archaeological excavations have identified a fortified settlement with concentric ditches and wall foundations dating to the Shang–Zhou transition. While its precise relationship to later historical cities is undetermined, the site indicates organized settlement in the Qinhuai area prior to the urban foundations documented in transmitted texts.
Historical records attribute early named urban foundations in the area to the 5th century BCE: Yuecheng, reportedly built by Fan Li of Yue, and Yecheng, associated in later accounts with metallurgical activity and attributed to King Fuchai of Wu. However, their exact locations and chronologies remain subjects of academic debate. Under Chu rule, the area was known as Jinling, before being renamed Moling following the Qin unification.
Throughout the Six Dynasties period, successive regimes in the southeast maintained their administrative center at Jiankang (originally Jianye), except for brief intervals in 221–229, 265–267, and 552–554, when the seat of government relocated to the middle Yangtze.
In 211, Sun Quan moved his headquarters to Moling. The following year, he fortified Shitou Hill to build the Stone City and renamed the region Jianye (建業). After proclaiming himself emperor in 229, Sun Quan established his capital here and built the Taichu (太初) Palace, followed by the larger Zhaoming (昭明) Palace in 267. These structures were largely destroyed during the Western Jin conquest and subsequent early 4th-century conflicts.