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Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 million residents. It has an administrative area of , the third in the country after Guangzhou and Shanghai. It is located in Northern China, and is governed as a municipality under the direct administration of the State Council with 16 urban, suburban, and rural districts.Figures based on 2006 statistics published in 2007 National Statistical Yearbook of China and available online at
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. Retrieved 21 April 2009. Beijing is mostly surrounded by Hebei Province with the exception of neighboring Tianjin to the southeast; together, the three divisions form the Jingjinji megalopolis and the national capital region of China.

Beijing is a global city and one of the world's leading centres for culture, diplomacy, politics, finance, business and economics, education, research, language, tourism, media, sport, science and technology and transportation. As a megacity, Beijing is the second largest Chinese city by urban population after Shanghai. It is home to the headquarters of most of China's largest state-owned companies and houses the largest number of Fortune Global 500 companies in the world, as well as the world's four biggest financial institutions by total assets. It is also a major hub for the national highway, expressway, railway, and high-speed rail networks. The Beijing Capital International Airport has been the second busiest in the world by passenger traffic ( Asia's busiest) since 2010, and, , the city's subway network is the busiest and longest in the world. The Beijing Daxing International Airport, a second international airport in Beijing, is the largest single-structure airport terminal in the world.

Combining both modern and traditional style architectures, Beijing is one of the oldest cities in the world, with a rich history dating back over three millennia. As the last of the Four Great Ancient Capitals of China, Beijing has been the political center of the country for most of the past eight centuries, and was the largest city in the world by population for much of the second millennium CE. With mountains surrounding the inland city on three sides, in addition to the old inner and outer city walls, Beijing was strategically poised and developed to be the residence of the emperor and thus was the perfect location for the imperial capital. The city is renowned for its opulent palaces, temples, parks, gardens, tombs, walls and gates. Beijing is one of the most important tourist destinations of the world. In 2018, Beijing was the second highest earning tourist city in the world after Shanghai. Beijing is home to many national monuments and museums and has seven UNESCO World Heritage Sites—the Forbidden City, Temple of Heaven, Summer Palace, Ming Tombs, Zhoukoudian, and parts of the Great Wall and the Grand Canal—all of which are popular tourist locations. Siheyuans, the city's traditional housing style, and hutongs, the narrow alleys between siheyuans, are major tourist attractions and are common in urban Beijing.

Beijing's public universities make up more than one-fifth of Double First-Class Universities, and many of them consistently rank among the best in the Asia-Pacific and the world. Beijing is home to the two best C9 League universities (Tsinghua and Peking) in Asia & Oceania region and emerging countries. Beijing CBD is a center for Beijing's economic expansion, with the ongoing or recently completed construction of multiple skyscrapers. Beijing's Zhongguancun area is a world leading center of scientific and technological innovation as well as entrepreneurship. Beijing has been ranked the city with the largest scientific research output by the Nature Index since 2016. The city has hosted numerous international and national sporting events, the most notable being the 2008 Summer Olympics and 2008 Summer Paralympics Games. In 2022, Beijing became the first city ever to host both the Summer and Winter Olympics, and also the Summer and Winter Paralympics. Beijing hosts 175 foreign embassies as well as the headquarters of many organizations, including the Asian Infrastructure Investment Bank (AIIB), the Shanghai Cooperation Organisation (SCO), the Silk Road Fund, the Chinese Academy of Sciences, the Chinese Academy of Engineering, the Chinese Academy of Social Sciences, the Central Academy of Fine Arts, the Central Academy of Drama, the Central Conservatory of Music, and the Red Cross Society of China.

Etymology

Over the past 3,000 years, the city of Beijing has had numerous other names. The name ''Beijing'', which means "Northern Capital" (from the Chinese characters for ''north'' and for ''capital''), was applied to the city in 1403 during the Ming dynasty to distinguish the city from Nanjing (the "Southern Capital"). The English spelling ''Beijing'' is based on the government's official romanization (adopted in the 1980s) of the two characters as they are pronounced in Standard Mandarin. An older English spelling, ''Peking'', was used by Jesuit missionary Martino Martini in a popular atlas published in Amsterdam in 1655. Although Peking is no longer the common name for the city, some of the city's older locations and facilities, such as Beijing Capital International Airport, with the IATA Code PEK, and Peking University, still retain the former romanization.

The single Chinese character abbreviation for Beijing is , which appears on automobile license plates in the city. The official Latin alphabet abbreviation for Beijing is "BJ".

History

Early history

The earliest traces of human habitation in the Peking municipality were found in the caves of Dragon Bone Hill near the village of Zhoukoudian in Fangshan District, where Peking Man lived. ''Homo erectus'' fossils from the caves date to 230,000 to 250,000 years ago. Paleolithic ''Homo sapiens'' also lived there more recently, about 27,000 years ago. Archaeologists have found neolithic settlements throughout the municipality, including in Wangfujing, located in central Peking.

The first walled city in Beijing was Jicheng, the capital city of the state of Ji and was built in 1045 BC. Within modern Beijing, Jicheng was located around the present Guang'anmen area in the south of Xicheng District. This settlement was later conquered by the state of Yan and made its capital.

Early Imperial China

After the First Emperor unified China in 221 BC, Jicheng became a prefectural capital for the region. During the Three Kingdoms period, it was held by Gongsun Zan and Yuan Shao before falling to the Wei Kingdom of Cao Cao. The AD third-century Western Jin demoted the town, placing the prefectural seat in neighboring Zhuozhou. During the Sixteen Kingdoms period when northern China was conquered and divided by the Wu Hu, Jicheng was briefly the capital of the Xianbei Former Yan Kingdom.

After China was reunified by the Sui dynasty in 581, Jicheng, also known as Zhuojun, became the northern terminus of the Grand Canal. Under the Tang dynasty, Jicheng as Youzhou, served as a military frontier command center. During the An-Shi Rebellion and again amidst the turmoil of the late Tang, local military commanders founded their own short-lived Yan dynasties and called the city Yanjing, or the "Yan Capital." Also in the Tang dynasty, the city's name Jicheng was replaced by Youzhou or Yanjing. In 938, after the fall of the Tang, the Later Jin ceded the frontier territory including what is now Beijing to the Khitan Liao dynasty, which treated the city as Nanjing, or the "Southern Capital", one of four secondary capitals to complement its "Supreme Capital" Shangjing (modern Baarin Left Banner in Inner Mongolia). Some of the oldest surviving pagodas in Beijing date to the Liao period, including the Tianning Pagoda.

The Liao fell to the Jurchen Jin dynasty in 1122, which gave the city to the Song dynasty and then retook it in 1125 during its conquest of northern China. In 1153, the Jurchen Jin made Beijing their "Central Capital", or Zhongdu. The city was besieged by Genghis Khan's invading Mongolian army in 1213 and razed to the ground two years later. Two generations later, Kublai Khan ordered the construction of Dadu (or Daidu to the Mongols, commonly known as Khanbaliq), a new capital for his Yuan dynasty to the northeast of the Zhongdu ruins. The construction took from 1264 to 1293, but greatly enhanced the status of a city on the northern fringe of China proper. The city was centered on the Drum Tower slightly to the north of modern Beijing and stretched from the present-day Chang'an Avenue to the northern part of Line 10 subway. Remnants of the Yuan rammed earth wall still stand and are known as the Tucheng.

Ming dynasty

In 1368, soon after declaring the new Hongwu era of the Ming dynasty, the rebel leader Zhu Yuanzhang captured Dadu/Khanbaliq and razed the Yuan palaces to the ground.Ebrey, Patricia Buckley. ''The Cambridge Illustrated History of China''. Cambridge: Cambridge University Press, 1999. Since the Yuan continued to occupy Shangdu and Mongolia, Dadu was used to supply the Ming military garrisons in the area and renamed Beiping (Wade–Giles: Peip'ing, "Northern Peace"). Under the Hongwu Emperor's feudal policies, Beiping was given to his son Zhu Di, who was created " Prince of Yan".

The early death of Zhu Yuanzhang's heir led to a succession struggle upon his death, one that ended with the victory of Zhu Di and the declaration of the new Yongle era. Since his harsh treatment of the Ming capital Yingtian (modern Nanjing) alienated many there, he established his fief as a new co-capital. The city of Beiping became Beijing ("Northern Capital") or Shuntian in 1403. The construction of the new imperial residence, the Forbidden City, took from 1406 to 1420; this period was also responsible for several other of the modern city's major attractions, such as the Temple of Heaven and Tian'anmen. On 28 October 1420, the city was officially designated the capital of the Ming dynasty in the same year that the Forbidden City was completed. Beijing became the empire's primary capital, and Yingtian, also called Nanjing ("Southern Capital"), became the co-capital. (A 1425 order by Zhu Di's son, the Hongxi Emperor, to return the primary capital to Nanjing was never carried out: he died, probably of a heart attack, the next month. He was buried, like almost every Ming emperor to follow him, in an elaborate necropolis to Beijing's north.)

By the 15th century, Beijing had essentially taken its cu