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Not to be confused with Old Summer Palace
The Summer Palace (simplified Chinese: ; traditional Chinese: ; pinyin: Yíhéyuán) is a vast ensemble of lakes, gardens and palaces in Beijing. It was an imperial garden during the Qing dynasty. Inside includes Longevity Hill (; ; Wànshòu Shān) Kunming Lake and Seventeen Hole Bridge. It covers an expanse of 2.9 square kilometres (1.1 sq mi), three-quarters of which is water.
Longevity Hill is about 60 metres (200 ft) high and has many buildings positioned in sequence. The front hill is the site of splendid halls and pavilions, while the back hill, in sharp contrast, is quiet with natural beauty. The central Kunming Lake, covering 2.2 square kilometres (540 acres), was entirely man-made and the excavated soil was used to build Longevity Hill.
The Summer Palace, which is inspired by the gardens of South China, contains over 3,000 Chinese ancient buildings that house a collection of over 40,000 valuable historical relics from various dynasties.
In December , UNESCO included the Summer Palace on its World Heritage List. It declared the Summer Palace "a masterpiece of Chinese landscape garden design. The natural landscape of hills and open water is combined with artificial features such as pavilions, halls, palaces, temples and bridges to form a harmonious ensemble of outstanding aesthetic value".
Notably in Chinese history, it is also the Central Route terminus of the South-North Water Transfer Project having traversed 1,267 km (787 mi) from Danjiangkou Reservoir, Hubei, making it Beijing's main water supply.
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The origins of the Summer Palace date back to the Jurchen-led Jin dynasty. In , when the fourth ruler, Wanyan Liang (r. ), moved the Jin capital from Huining Prefecture (in present-day Acheng District, Harbin, Heilongjiang) to Yanjing (present-day Beijing), he ordered the construction of a palace in the Fragrant Hills and Jade Spring Hill in what is now the northwest of Beijing.
Around , after the Yuan dynasty established its capital in Khanbaliq (present-day Beijing), the engineer Guo Shoujing initiated a waterworks project to direct the water from Shenshan Spring () in Baifu Village (), Changping into the Western Lake (), which would later become Kunming Lake. Guo aimed to create a water reservoir that would ensure a stable water supply for the palace.
In , the Hongzhi Emperor (r. ) of the Ming dynasty had a Yuanjing Temple () built for his wet nurse, Lady Luo, in front of Jar Hill (), which was later renamed Longevity Hill. The temple fell into disrepair over the years and was abandoned, and the area around the hill became lush with vegetation. The Zhengde Emperor (r. 21), who succeeded the Hongzhi Emperor, built a palace on the banks of the Western Lake and turned the area into an imperial garden. He renamed Jar Hill "Golden Hill" () and named the lake "Golden Sea" (). Both the Zhengde Emperor and the Wanli Emperor (r. ) enjoyed taking boat rides on the lake. During the reign of the Tianqi Emperor (r. 27), the court eunuch Wei Zhongxian took the imperial garden as his personal property.
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In the early Qing dynasty, Jar Hill served as the site for horse stables in the imperial palace. Eunuchs who committed offences were sent there to weed and cut grass. At the beginning of the reign of the Qianlong Emperor (r. -), many imperial gardens were built in the area around present-day Beijing's Haidian District and accordingly, water consumption increased tremendously. At the time, much of the water stored in the Western Lake came from the freshwater spring on Jade Spring Hill, while a fraction came from the Wanquan River (). Any disruption of the water flow from Jade Spring Hill would have affected the capital's water transport and water supply systems.
Around , the Qianlong Emperor decided to build a palace in the vicinity of Jar Hill and the Western Lake to celebrate the 60th birthday of his mother, Empress Dowager Chongqing. He ordered the Western Lake to be expanded further west to create two more lakes, Gaoshui Lake () and Yangshui Lake (), with the aim of improving the capital's waterworks system. The three lakes served not only as a reservoir for the imperial gardens but also as a source of water for the surrounding agricultural areas. The Qianlong Emperor collectively named the three lakes "Kunming Lake" after the Kunming Pool () constructed by Emperor Wu (2nd century BC) in the Han dynasty for the training of his navy. The earth excavated from the expansion of Kunming Lake was used to enlarge Jar Hill, which was renamed "Longevity Hill". The Summer Palace, whose construction was completed in at a cost of over 4.8 million silver taels, was initially named "Qingyiyuan" (; 'Gardens of Clear Ripples"').
The design of the Summer Palace was based on a legend in Chinese mythology about three divine mountains in the East Sea, namely Penglai, Fangzhang () and Yingzhou (). The three islands in Kunming Lake Nanhu Island (), Tuancheng Island () and Zaojiantang Island () were made to represent the three mountains, while the lake itself was based on a blueprint of the West Lake in Hangzhou. Moreover, many architectural features in the palace were also built to resemble or imitate various attractions around China. For example, the Phoenix Pier () represented Lake Tai; the Jingming Tower () resembled Yueyang Tower, Hunan; the Wangchan Pavilion () resembled Yellow Crane Tower; the shopping streets were designed to imitate those in Suzhou and Yangzhou. The centrepiece of the Summer Palace was the "Great Temple of Gratitude and Longevity" (). There was also a Long Corridor more than 700 metres (2,300 ft) long which was furnished with artistic decorations. As the palace was not equipped with facilities for long-term residence and the daily administration of state affairs, the Qianlong Emperor never dwelt there and only remained for the day whenever he visited it.
As the Qing Empire started declining after the reign of the Daoguang Emperor (r. ), the Summer Palace gradually became more neglected and the architectural features on the three islands were ordered to be dismantled because the costs of maintenance were too high. During the Second Opium War, British and French forces occupied the Summer Palace and the nearby Old Summer Palace in December , sacking both and burning the latter. The occupations came as part of an invasion of Northern China by Britain and France to force the government of the Qing dynasty to come to the negotiating table. Despite being looted, the Summer Palace was not burned, however, as the British High Commissioner to China, Lord Elgin, had not issued orders to do so.
Between 95, during the reign of the Guangxu Emperor (r. ), Empress Dowager Cixi reportedly ordered up to 22 million silver taels,[4] originally designated for upgrading the Qing navy (the Beiyang Fleet), to be used for reconstructing and enlarging the Summer Palace to celebrate her 60th birthday; however, some other sources state that a maximum of six million taels were allotted, of which none came from the Navy's capital budget, but only the accrued bank interest paid.[5] As the funds were limited, the construction works were concentrated on the buildings at the front of Longevity Hill and the dams around Kunming Lake. The Summer Palace was also given its present-day Chinese name, "Yiheyuan" (), in . In , towards the end of the Boxer Rebellion, the Summer Palace suffered damage again when the forces of the Eight-Nation Alliance destroyed the imperial gardens and seized many artifacts stored in the palace. The palace was restored two years later.
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In , following the abdication of the Puyi, the Last Emperor, the Summer Palace became the private property of the former imperial family of the Qing Empire. Two years later, the Summer Palace was opened to the public and entry tickets were sold. In , after Puyi was expelled from the Forbidden City by the warlord Feng Yuxiang, the Beijing municipal government took charge of administering the Summer Palace and turned it into a public park.
After , the Summer Palace briefly housed the Central Party School of the Chinese Communist Party. Many of Mao Zedong's friends and key figures in the Communist Party, such as Liu Yazi and Jiang Qing, also lived there. Since , many major restoration and renovation works have been done on the Summer Palace, which is now open to the public as a tourist attraction and park.[citation needed]
In November , the Summer Palace was designated a World Heritage Site by UNESCO.[citation needed] Towards the end of , the Chinese government also started distributing commemorative coins to celebrate the Summer Palace as a cultural relic of the world.
Pictorial plan of the Summer Palace, c. .
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Foxiang Ge (Tower of Buddhist Incense) at Wanshou Shan (Longevity Hill) Foxiang Ge and Kunming Lake The Wenchang Pavilion Paiyun Dian (Hall of Dispelling Clouds) and Foxiang Ge (Tower of Buddhist Incense) at Wanshou Shan (Longevity Hill), Summer Palace Summer Palace in JuneThe entire Summer Palace is centered around Longevity Hill and Kunming Lake, with the latter covering about three-quarters of the area. Most of the important buildings were built along the northsouth axis of Longevity Hill, which is divided into the front hill and the back hill. There are three small islands within Kunming Lake: Nanhu Island, Zaojiantang Island and Zhijingge Island. The West Dam of Kunming Lake divides the lake into two. The East Dam was constructed during the reign of the Guangxu Emperor. The attractions in the Summer Palace may be divided into six different sections or scenic areas: the Halls, Longevity Hill, Kunming Lake, the Farming and Weaving Picture Scenic Area, the Long Corridor, and the Central Axis area. Summer Palace is among the most-visited destinations in China, ranking in the top five, and attracts about 10 million tourists annually.[1]
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Wenchang Pavilion Relief of three Chinese dragons The Kunming lake The Seventeen-Arch Bridge[
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Zhīchūntíng
): Located on the east bank of Kunming Lake at the south of the Hall of Jade Billows.Wénchānggé
): Built to resemble a city gate. It served as an important entry point into the Summer Palace from the east and south during the Qianlong Emperor's time. The Wenchang Hall (), often called a Gallery, is located beside Wenchang Tower and displays cultural artefacts from the Summer Palace.Kuòrútíng
): Situated in the middle of the eastern dam, east of the 17 Openings Bridge. It covered an area of 130 m2 (1,400 sq ft).Tóngniú
): A bronze statue of an ox built in .Yēlǜ Chǔcái Cí
): A shrine built by the Qianlong Emperor to commemorate Yelü Chucai, an influential statesman in the Mongol Empire. It was closed down after and its front section was converted into a souvenir shop.[
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Portion of a fresco of a pavilion of the Summer Palace.[
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Jièhúqiáo
): The bridge that separates Kunming Lake from the northern lake.Yùdàiqiáo
)Bīnfēngqiáo
)Jǐngmínglóu
): It was destroyed by the British and French in and was restored only in . It was designed to imitate Yueyang Tower.Jìngqiáo
)Liànqiáo
)Liǔqiáo
): Located most south of the western dam.Gēngzhítú Jǐngqū
): Built during the Qianlong Emperor's time, it was designed to bring to life a scene from the daily lives of peasants. This area was excluded from the Summer Palace after it was renovated by Empress Dowager Cixi. In , the area was occupied by the People's Liberation Army and a paper-making factory was built there. In , the area was incorporated back into the Summer Palace and some old buildings were restored.[
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Kunming Lake Climate chart (explanation)J
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Average max. and min. temperatures in °C Precipitation totals in mmSource:[
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Imperial conversion JFMAMJJASOND
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Average max. and min. temperatures in °F Precipitation totals in inches[
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A main finding of this characterization and exploratory analysis of the first 72,314 cases of COVID-19 found in China in the 40 days between first recognition of the outbreak of pneumonia with unknown etiology on December 31, to the end of the study period on February 11, is that this novel coronavirus is highly contagious. It has spread extremely rapidly from a single city to the entire country within only about 30 days. Moreover, it has achieved such far-reaching effects even in the face of extreme response measures including the complete shutdown and isolation of whole cities, cancellation of Chinese New Year celebrations, prohibition of attendance at school and work, massive mobilization of health and public health personnel as well as military medical units, and rapid construction of entire hospitals.
In light of this rapid spread, it is fortunate that COVID-19 has been mild for 81% of patients and has a very low overall case fatality rate of 2.3%. Among the 1,023 deaths, a majority have been 60 years of age and/or have had pre-existing, comorbid conditions such as hypertension, cardiovascular disease, and diabetes. Moreover, the case fatality rate is unsurprisingly highest among critical cases at 49%, and no deaths have occurred among those with mild or even severe symptoms (Table 1).
A major contribution of our study is a first description of the COVID-19 epidemic curves. We interpret the overall curve (Figure 3A) as having a mixed outbreak patternthe data appear to indicate a continuous common source pattern of spread in December and then from early January through February 11, , the data appear to have a propagated source pattern. This mixed outbreak time trend is consistent with the working theory that perhaps several zoonotic events occurred at Huanan Seafood Wholesale Market in Wuhan allowed -nCoV to be transmitted from a still-unknown animal into humans and, due to its high mutation and recombination rates, it adapted to become capable of and then increasingly efficient at human-to-human transmission (3,8).
The early days of the outbreak have been reminiscent of SARS and MERS, and indeed, the discovery that the causative agent was a closely-related, never-before-described coronavirus predicted potential for nosocomial transmission and so-called super-spreader events (8). Unfortunately, -nCoV did indeed infect health workers in China via nosocomial transmission. Here we offer a first description of the 1,716 confirmed cases among health workers. Overall, they also display a likely mixed outbreak patternperhaps the data are characterized by a point source curve beginning in late December , which was eclipsed by a higher magnitude continuous source curve beginning on January 20, . To date, there is no evidence of a super-spreader event occurring in any of the Chinese health facilities serving COVID-19 patients. However, we do not know whether this is due to the nature of the virus itself or whether these events have been successfully prevented.
It is these authors sincere hope and intent that this new analysis, on what has become a public health emergency of international concern, (12) helps to inform health and public health workers preparing for or perhaps already experiencing COVID-19 in their populations. This study provides important insight into several crucial open questions on this epidemic and how to design strategies to effectively control it (3). For instance, the downward trend in the overall epidemic curve suggests that perhaps isolation of whole cities, broadcast of critical information (e.g., promoting hand washing, mask wearing, and care seeking) with high frequency through multiple channels, and mobilization of a multi-sector rapid response teams is helping to curb the epidemic.
Chinas response is certainly an echo of lessons learned during SARS and is a tribute to the work China and other low- and middle-income countries have been doing, with the much-needed help of international partners, over the past few decades to build infectious disease surveillance systems and public health infrastructure capable of catching outbreaks early and responding swiftly using evidence-based best practices. The -nCoV and other coronaviruses may continue to adapt over time to become more virulent (3), and zoonosis is not going to stop. We must remain vigilant, hone our skills, fund our defenses, and practice our responses, and we must help our neighbors to do the same.
The very large number of cases included in our study was a major strength. Nevertheless, our study did have some important limitations. Firstly, a large proportion of cases included in our analysis (37%) were not confirmed by nucleic acid testing since this process is slow, labor intensive, and requires specialized equipment and skilled technicians. Yet all 72,314 cases were at least diagnosed clinically and investigated by trained epidemiologists. Secondly, some records did have missing data for a few important variables of interestWuhan-related exposure, comorbid conditions, and case severitywhich limits our ability to draw conclusions from the data.
In conclusion, the present descriptive, exploratory analysis of the first 72,314 cases of COVID-19 reported through February 11, offers important new information to the international community on the epidemic in China. In particular, this analysis chronicles the extremely rapid spread of the novel coronavirus despite extreme efforts to contain it. However, important questions remain including identification of the animal reservoir, determination of infectiousness period, identification of transmission routes, and effective treatment and prevention methods including further test development, drug development, and vaccine development (34,89). As an international community, we must all be responsible partners in surveillance, communication, response, research, and implementation of evidence-based public health and clinical practice. The massive vigorous actions taken by the Chinese government have slowed down the epidemic in China and curbed spread to the rest of the world. Although the epidemic appears to be in decline in the lead up to February 11, , we may yet face more challenges. Huge numbers of people will soon be returning to work and school after the extended New Year holiday. We need to prepare for a possible rebound of the COVID-19 epidemic in the coming weeks and months.
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