Question: When did the Kuomintang defeat and take over the city the capitol was moved to?

full_context: Document 1: Nanjing: Nanjing first became a state capital in 229 AD, when the state of Eastern Wu founded by Sun Quan during the Three Kingdoms period relocated its capital to Jianye (建業), the city extended on the basis of Jinling Yi in 211 AD. Although conquered by the Western Jin dynasty in 280, Nanjing and its neighbouring areas had been well cultivated and developed into one of the commercial, cultural and political centers of China during the rule of East Wu. This city would soon play a vital role in the following centuries.
Document 2: Nationalist government: The Nationalist government, officially the National Government of the Republic of China () or the Second Republic of China, refers to the government of the Republic of China between 1 July 1925 and 20 May 1948, led by the Kuomintang (KMT, Chinese Nationalist Party). The name derives from the Kuomintang's translated name "Nationalist Party". The government was in place until it was replaced by the current Government of the Republic of China in the newly promulgated Constitution of the Republic of China.
Document 3: Nanjing: Being one of the four ancient capitals of China, Nanjing has always been a cultural centre attracting intellectuals from all over the country. In the Tang and Song dynasties, Nanjing was a place where poets gathered and composed poems reminiscent of its luxurious past; during the Ming and Qing dynasties, the city was the official imperial examination centre (Jiangnan Examination Hall) for the Jiangnan region, again acting as a hub where different thoughts and opinions converged and thrived.
Document 4: Nanjing: Located in Yangtze River Delta area and the center of East China, Nanjing is home to one of the world's largest inland ports. Nanjing 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. Nanjing has been ranked seventh in the evaluation of "Cities with Strongest Comprehensive Strength" issued by the National Statistics Bureau, and second in the evaluation of cities with most sustainable development potential in the Yangtze River Delta. It has also been awarded the title of 2008 Habitat Scroll of Honour of China, Special UN Habitat Scroll of Honour Award and National Civilized City. Nanjing boasts many high-quality universities and research institutes, with the number of universities listed in 100 National Key Universities ranking third, including Nanjing University. The ratio of college students to total population ranks No.1 among large cities nationwide. Nanjing is one of the three Chinese top research centres according to Nature Index.
Document 5: Nanjing: Since the Three Kingdoms period, Nanjing has been an industrial centre for textiles and minting owing to its strategic geographical location and convenient transportation. During the Ming dynasty, Nanjing's industry was further expanded, and the city became one of the most prosperous cities in China and the world. It led in textiles, minting, printing, shipbuilding and many other industries, and was the busiest business center in East Asia. Textiles boomed particularly in Qing dynasty, the industry created around 200 thousand jobs and there were about 50 thousand satin machines in the city in 18th and 19th century.
Document 6: Nanjing: On 21 April, Communist forces crossed the Yangtze River. On April 23, 1949, the Communist People's Liberation Army (PLA) captured Nanjing. The KMT government retreated to Canton (Guangzhou) until October 15, Chongqing until November 25, and then Chengdu before retreating to Taiwan on December 10. By late 1949, the PLA was pursuing remnants of KMT forces southwards in southern China, and only Tibet was left. After the establishment of the People's Republic of China in October 1949, Nanjing was initially a province-level municipality, but it was soon merged into Jiangsu province and again became the provincial capital by replacing Zhenjiang which was transferred in 1928, and retains that status to this day.
Document 7: Nationalist government: The following year, Chiang Kai - shek became the de facto leader of the Kuomintang (KMT). Chiang led the Northern Expedition through China with the intention of defeating the warlords and unifying the country. Chiang received the help of the Soviet Union and the Chinese Communist Party; however, he soon dismissed his Soviet advisors. He was convinced, not without reason, that they wanted to get rid of the KMT (also known as the Chinese Nationalist Party) and take over. Chiang decided to strike first and purged the Communists, killing thousands of them. At the same time, other violent conflicts took place in the south of China where the Communist Party fielded superior numbers and were massacring Nationalist supporters. These events eventually led to the Chinese Civil War between the Nationalist Party and the Communist Party. Chiang Kai - shek pushed the Communist Party into the interior as he sought to destroy them, and moved the Nationalist Government to Nanjing in 1927. Leftists within the KMT still allied to the communists, lead by Wang Jingwei, had established a rival Nationalist Government in Wuhan two months earlier, but soon joined Chiang in Nanjing in August 1927. By the following year, Chiang's army had captured Beijing after overthrowing the Beiyang government and unified the entire nation, at least nominally, marking the beginning the Nanjing Decade.
Document 8: Nanjing: During the period of North–South division, Nanjing remained the capital of the Southern dynasties for more than two and a half centuries. During this time, Nanjing was the international hub of East Asia. Based on historical documents, the city had 280,000 registered households. Assuming an average Nanjing household had about 5.1 people at that time, the city had more than 1.4 million residents.
Document 9: Ming dynasty: Great Ming 大明 1368 -- 1644 Ming China under the reign of the Yongle Emperor Ming China around 1580 Capital Nanjing (Yingtian prefecture) (1368 -- 1644) Beijing (Shuntian prefecture) (1403 -- 1644) Languages Official language: Mandarin Other Chinese languages Other languages: Turki (Modern Uyghur), Old Uyghur language, Tibetan, Mongolian, Jurchen, others Religion Heaven worship, Taoism, Confucianism, Buddhism, Chinese folk religion, Islam, Roman Catholicism Government Absolute monarchy Emperor (皇帝) 1368 -- 1398 (first) Hongwu Emperor 1402 -- 1424 Yongle Emperor 1627 -- 1644 (last) Chongzhen Emperor Senior Grand Secretary 1402 -- 1407 Xie Jin 1644 Wei Zaode History Established in Nanjing 23 January 1368 Beijing designated as capital 28 October 1420 Fall of Beijing 25 April 1644 End of the Southern Ming 1683 Area 1415 6,500,000 km (2,500,000 sq mi) Population 1393 est. 65,000,000 1403 est. 66,598,337 1 1500 est. 125,000,000 2 1600 est. 160,000,000 3 Currency Paper money (1368 -- 1450) Bimetallic: copper cashes (文, wén) in strings of coin and paper Silver taels (兩, liǎng) in sycees and by weight Preceded by Succeeded by Yuan dynasty Shun dynasty Southern Ming dynasty Today part of (show) Burma China Laos Russia Vietnam North Korea Remnants of the Ming dynasty ruled southern China until 1662, and Taiwan until 1683 a dynastic period which is known as the Southern Ming. 1The numbers are based on estimates made by CJ Peers in Late Imperial Chinese Armies: 1520 -- 1840 2According to A.G. Frank, ReOrient: global economy in the Asian Age, 1998, p. 109 3According to A. Maddison, The World Economy Volume 1: A Millennial Perspective Volume 2, 2007, p. 238
Document 10: Nanjing: A few days before the fall of the city, the National Government of China was relocated to the southwestern city Chungking (Chongqing) and resumed Chinese resistance. In 1940, a Japanese-collaborationist government known as the "Nanjing Regime" or "Reorganized National Government of China" led by Wang Jingwei was established in Nanjing as a rival to Chiang Kai-shek's government in Chongqing. In 1946, after the Surrender of Japan, the KMT relocated its central government back to Nanjing.
Document 11: Nanjing: 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, and had been the world's largest city aggregately for hundreds of years, enjoyed peace and prosperity and beared wars and disasters. Nanjing served as the capital of Eastern Wu, one of the three major states in the Three Kingdoms period (211-280); the Eastern Jin and each of the Southern Dynasties (Liu Song, Southern Qi, Liang and Chen), which successively ruled southern China from 317-589; the Southern Tang, one of the Ten Kingdoms (937-76); the Ming dynasty when, for the first time, all of China was ruled from the city (1368-1421); and the Republic of China (1927–37, 1945–49) prior to its flight to Taiwan during the Chinese Civil War. The city also served as the seat of the rebel Taiping Heavenly Kingdom (1851–64) and the Japanese puppet regime of Wang Jingwei (1940–45) during the Second Sino-Japanese War, and suffered appalling atrocities in both conflicts, including the Nanjing Massacre. It has been serving as the capital city of Jiangsu province after the China was established, and is still the nominal capital of Republic of China that accommodates many of its important heritage sites, including the Presidential Palace and Sun Yat-sen 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 Art Museum.
Document 12: Nanjing: As the center of the empire, early-Ming Nanjing had worldwide connections. It was home of the admiral Zheng He, who went to sail the Pacific and Indian Oceans, and it was visited by foreign dignitaries, such as a king from Borneo (Boni 渤泥), who died during his visit to China in 1408. The Tomb of the King of Boni, with a spirit way and a tortoise stele, was discovered in Yuhuatai District (south of the walled city) in 1958, and has been restored.
Document 13: Nanjing: In 1927, the Kuomintang (KMT; Nationalist Party) under Generalissimo Chiang Kai-shek again established Nanjing as the capital of the Republic of China, and this became internationally recognized once KMT forces took Beijing in 1928. The following decade is known as the Nanking decade.
Document 14: Nanjing: It is believed that Nanjing was the largest city in the world from 1358 to 1425 with a population of 487,000 in 1400. Nanjing remained the capital of the Ming Empire until 1421, when the third emperor of the Ming dynasty, the Yongle Emperor, relocated the capital to Beijing.
Document 15: Nanjing: Nanjing ( listen; Chinese: 南京, "Southern Capital") is the city situated in the heartland of lower Yangtze River region in China, which has long been a major centre of culture, education, research, politics, economy, transport networks and tourism. It is the capital city of Jiangsu province of People's Republic of China and the second largest city in East China, with a total population of 8,216,100, and legally the capital of Republic of China which lost the mainland during the civil war. The city whose name means "Southern Capital" has a prominent place in Chinese history and culture, having served as the capitals of various Chinese dynasties, kingdoms and republican governments dating from the 3rd century AD to 1949. Prior to the advent of pinyin romanization, Nanjing's city name was spelled as Nanking or Nankin. Nanjing has a number of other names, and some historical names are now used as names of districts of the city, and among them there is the name Jiangning (江寧), whose former character Jiang (江, River) is the former part of the name Jiangsu and latter character Ning (寧, simplified form 宁, Peace) is the short name of Nanjing. When being the capital of a state, for instance, ROC, Jing (京) is adopted as the abbreviation of Nanjing. Although as a city located in southern part of China becoming Chinese national capital as early as in Jin dynasty, the name Nanjing was designated to the city in Ming dynasty, about a thousand years later. Nanjing is particularly known as Jinling (金陵, literally meaning Gold Mountain) and the old name has been used since the Warring States Period in Zhou Dynasty.
ground_truth: 1928
sub_queries: Where was the capital moved to? Answer: Beijing
When did the Kuomintang (KMT; Nationalist Party) defeat and take over Beijing ? Answer: 1928