Question: When did Wu'erkaixi's birthplace fall?

full_context: Document 1: Qing dynasty: Ming government officials fought against each other, against fiscal collapse, and against a series of peasant rebellions. They were unable to capitalise on the Manchu succession dispute and installation of a minor as emperor. In April 1644, the capital at Beijing was sacked by a coalition of rebel forces led by Li Zicheng, a former minor Ming official, who established a short-lived Shun dynasty. The last Ming ruler, the Chongzhen Emperor, committed suicide when the city fell, marking the official end of the dynasty.
Document 2: Liang Congjie: Liang's father, architect Liang Sicheng, had led attempts to prevent the destruction of the walls surrounding Beijing with the land to be used for the construction of highways. His grandfather Liang Qichao spent 14 years in exile in Japan after he advocated on behalf of turning the Qing Dynasty into a constitutional monarchy. His ancestry came to haunt him during the Maoist Cultural Revolution when he was purged for his being the "grandson of China's biggest royalist". Liang was ultimately able to attend Peking University.
Document 3: Qing dynasty: To extend and consolidate the dynasty's control in Central Asia, the Kangxi Emperor personally led a series of military campaigns against the Dzungars in Outer Mongolia. The Kangxi Emperor was able to successfully expel Galdan's invading forces from these regions, which were then incorporated into the empire. Galdan was eventually killed in the Dzungar–Qing War. In 1683, Qing forces received the surrender of Taiwan from Zheng Keshuang, grandson of Koxinga, who had conquered Taiwan from the Dutch colonists as a base against the Qing. Zheng Keshuang was awarded the title "Duke Haicheng" (海澄公) and was inducted into the Han Chinese Plain Red Banner of the Eight Banners when he moved to Beijing. Several Ming princes had accompanied Koxinga to Taiwan in 1661-1662, including the Prince of Ningjing Zhu Shugui and Prince Zhu Honghuan (朱弘桓), son of Zhu Yihai, where they lived in the Kingdom of Tungning. The Qing sent the 17 Ming princes still living on Taiwan in 1683 back to mainland China where they spent the rest of their lives in exile since their lives were spared from execution. Winning Taiwan freed Kangxi's forces for series of battles over Albazin, the far eastern outpost of the Tsardom of Russia. Zheng's former soldiers on Taiwan like the rattan shield troops were also inducted into the Eight Banners and used by the Qing against Russian Cossacks at Albazin. The 1689 Treaty of Nerchinsk was China's first formal treaty with a European power and kept the border peaceful for the better part of two centuries. After Galdan's death, his followers, as adherents to Tibetan Buddhism, attempted to control the choice of the next Dalai Lama. Kangxi dispatched two armies to Lhasa, the capital of Tibet, and installed a Dalai Lama sympathetic to the Qing.
Document 4: Qing dynasty: The early Manchu rulers also established two foundations of legitimacy which help to explain the stability of their dynasty. The first was the bureaucratic institutions and the neo-Confucian culture which they adopted from earlier dynasties. Manchu rulers and Han Chinese scholar-official elites gradually came to terms with each other. The examination system offered a path for ethnic Han to become officials. Imperial patronage of Kangxi Dictionary demonstrated respect for Confucian learning, while the Sacred Edict of 1670 effectively extolled Confucian family values. The second major source of stability was the Central Asian aspect of their Manchu identity which allowed them to appeal to Mongol, Tibetan and Uighur constituents. The Qing used the title of Emperor (Huangdi) in Chinese while among Mongols the Qing monarch was referred to as Bogda khan (wise Khan), and referred to as Gong Ma in Tibet. Qianlong propagated the image of himself as Buddhist sage rulers, patrons of Tibetan Buddhism. In the Manchu language, the Qing monarch was alternately referred to as either Huwangdi (Emperor) or Khan with no special distinction between the two usages. The Kangxi Emperor also welcomed to his court Jesuit missionaries, who had first come to China under the Ming. Missionaries including Tomás Pereira, Martino Martini, Johann Adam Schall von Bell, Ferdinand Verbiest and Antoine Thomas held significant positions as military weapons experts, mathematicians, cartographers, astronomers and advisers to the emperor. The relationship of trust was however lost in the later Chinese Rites controversy.
Document 5: Qing dynasty: The newly allied armies captured Beijing on June 6. The Shunzhi Emperor was invested as the "Son of Heaven" on October 30. The Manchus, who had positioned themselves as political heir to the Ming emperor by defeating the rebel Li Zicheng, completed the symbolic transition by holding a formal funeral for the Chongzhen Emperor. However the process of conquering the rest of China took another seventeen years of battling Ming loyalists, pretenders and rebels. The last Ming pretender, Prince Gui, sought refuge with the King of Burma, but was turned over to a Qing expeditionary army commanded by Wu Sangui, who had him brought back to Yunnan province and executed in early 1662.
Document 6: Qing dynasty: The dynasty was founded by the Jurchen Aisin Gioro clan in Manchuria. In the late sixteenth century, Nurhaci, originally a Ming vassal, began organizing Jurchen clans into "Banners", military-social units. Nurhaci formed these clans into a unified entity, the subjects of which became known collectively as the Manchu people. By 1636, his son Hong Taiji began driving Ming forces out of Liaodong and declared a new dynasty, the Qing. In 1644, peasant rebels led by Li Zicheng conquered the Ming capital Beijing. Rather than serve them, Ming general Wu Sangui made an alliance with the Manchus and opened the Shanhai Pass to the Banner Armies led by Prince Dorgon, who defeated the rebels and seized Beijing. The conquest of China proper was not completed until 1683 under the Kangxi Emperor (r. 1661–1722). The Ten Great Campaigns of the Qianlong Emperor from the 1750s to the 1790s extended Qing control into Central Asia. While the early rulers maintained their Manchu ways, and while their official title was Emperor they were known as khans to the Mongols and patronized Tibetan Buddhism, they governed using Confucian styles and institutions of bureaucratic government. They retained the imperial examinations to recruit Han Chinese to work under or in parallel with Manchus. They also adapted the ideals of the tributary system in international relations, and in places such as Taiwan, the Qing so-called internal foreign policy closely resembled colonial policy and control.
Document 7: Wang Fanxi: Born near Hangzhou in the Zhejiang province, he joined the Communist Party of China, then an illegal organisation, in 1925. In 1927, he went to Moscow to study at the Communist University of the Toilers of the East. There he became a supporter of Trotsky and the International Left Opposition. On his return to China, Wang worked for the Communist Party and became a leading member of the Trotskyist October Group, and then the Chinese Left Opposition. He was jailed for most of the period from 1931 and 1937, and was expelled from the Communist Party for his views.
Document 8: Xiao Qiang: A theoretical physicist by training, he studied at the University of Science and Technology of China and entered the PhD program (1986–1989) in Astrophysics at the University of Notre Dame. He became a full-time human rights activist after the Tiananmen Massacre in 1989. Xiao was the Executive Director of the New York-based NGO Human Rights in China from 1991 to 2002 and vice-chairman of the steering committee of the World Movement for Democracy.
Document 9: Qing dynasty: Widespread drought in North China, combined with the imperialist designs of European powers and the instability of the Qing government, created conditions that led to the emergence of the Righteous and Harmonious Fists, or "Boxers." In 1900, local groups of Boxers proclaiming support for the Qing dynasty murdered foreign missionaries and large numbers of Chinese Christians, then converged on Beijing to besiege the Foreign Legation Quarter. A coalition of European, Japanese, and Russian armies (the Eight-Nation Alliance) then entered China without diplomatic notice, much less permission. Cixi declared war on all of these nations, only to lose control of Beijing after a short, but hard-fought campaign. She fled to Xi'an. The victorious allies drew up scores of demands on the Qing government, including compensation for their expenses in invading China and execution of complicit officials.
Document 10: Qing dynasty: In 1725 Yongzheng bestowed the hereditary title of Marquis on a descendant of the Ming dynasty Imperial family, Zhu Zhiliang, who received a salary from the Qing government and whose duty was to perform rituals at the Ming tombs, and was also inducted the Chinese Plain White Banner in the Eight Banners. Later the Qianlong Emperor bestowed the title Marquis of Extended Grace posthumously on Zhu Zhuliang in 1750, and the title passed on through twelve generations of Ming descendants until the end of the Qing dynasty.
Document 11: Xu Bing: Born in Chongqing in 1955, Xu grew up in Beijing. His father was the head of the history department at Peking University. In 1975, near the end of the Cultural Revolution, he was relocated to the countryside for two years as part of Mao Zedong's "re-education" policy. Returning to Beijing in 1977, he enrolled at the Central Academy of Fine Arts(CAFA) where he joined the printmaking department and also worked during a short period of time as a teacher, receiving his Masters in Fine Art in 1987. After the Tiananmen Square Protests of 1989 his recent work came under scrutiny from the government and received harsh criticism for what was perceived as a critique of the Chinese government. Due to the political pressure and artistic restrictions of the post-Tiananmen period in China, Xu Bing, like many of his contemporaries, moved to the United States in 1990 where he was invited by the University of Wisconsin–Madison. He then resided to the United States until his appointment as vice-president of the Beijing CAFA in 2008.
Document 12: Qing dynasty: First, the Manchus had entered "China proper" because Dorgon responded decisively to Wu Sangui's appeal. Then, after capturing Beijing, instead of sacking the city as the rebels had done, Dorgon insisted, over the protests of other Manchu princes, on making it the dynastic capital and reappointing most Ming officials. Choosing Beijing as the capital had not been a straightforward decision, since no major Chinese dynasty had directly taken over its immediate predecessor's capital. Keeping the Ming capital and bureaucracy intact helped quickly stabilize the regime and sped up the conquest of the rest of the country. However, not all of Dorgon's policies were equally popular nor easily implemented.
Document 13: Tuo Zhen: Tuo Zhen was born in Fangcheng County, Henan province, in 1959. His family name is extremely rare. In 1978, Tuo Zhen was admitted to Wuhan University, majoring in political economics. After graduating from university in 1982, he was assigned to work as an editor for the "Economic Daily". In 2005, he was promoted to chief editor. In 2011, he was transferred to become vice president of Xinhua News Agency. In May 2012, Tuo Zhen was transferred to Guangdong province, named a member of the provincial Party Standing Committee, and head of the Guangdong Propaganda Department.
Document 14: Zhou Ji: Zhou is a native of Shanghai, and attended Tsinghua University in Beijing, where he graduated from in 1970, and received M.E. degree in mechanical engineering from Huazhong University of Science and Technology in 1980. Zhou also acquired a doctorate from the University at Buffalo, The State University of New York (PhD, '84, M.S.'81) in the United States. Much of his early career was spent at the Huazhong University of Science and Technology in Wuhan, where he eventually rose to become the president of [Huazhong University of Science and Technology]] in 1997. He was elected as the fellow of the Chinese Academy of Engineering in 1999. He then spent a tenure in the municipal government of Wuhan, where he served as deputy mayor and Mayor.
Document 15: Wu'erkaixi: He was born in Beijing on February 17, 1968 with ancestral roots in Ili Kazakh Autonomous Prefecture, Xinjiang. He achieved prominence while studying at Beijing Normal University as a hunger striker who rebuked Chinese Premier Li Peng on national television. He was one of the main leaders of the pro-reform Beijing Students' Autonomous Federation, and helped lead abortive negotiations with officials.
ground_truth: June 6
sub_queries: Wu'erkaixi >> place of birth Answer: Beijing
When did Beijing fall? Answer: June 6