Republic of China (1912-1949) in the context of "Universal Postal Union"

The Kuomintang (KMT) is a major political party in the Republic of China (Taiwan). It was the sole ruling party of the country during its rule from 1927 to 1949 in Mainland China until its relocation to Taiwan, and in Taiwan ruled under martial law until 1987. The KMT is a centre-right to right-wing party and the largest in the Pan-Blue Coalition, one of the two main political groups in Taiwan. Its primary rival is the Democratic Progressive Party (DPP), the largest party in the Pan-Green Coalition. As of 2025, the KMT is the largest single party in the Legislative Yuan and is chaired by Cheng Li-wun.

The party was founded by Sun Yat-sen in 1894 in Honolulu, Hawaii, as the Revive China Society. He reformed the party in 1919 in the Shanghai French Concession under its current name. From 1926 to 1928, the KMT under Chiang Kai-shek successfully unified China in the Northern Expedition against regional warlords, leading to the fall of the Beiyang government. After initially allying with the Chinese Communist Party (CCP) in the First United Front, the party under Chiang purged communist members. It was the sole ruling party of China from 1928 to 1949 but gradually lost control while fighting the Empire of Japan in the Second Sino-Japanese War and the CCP in the Chinese Civil War. In December 1949, the Kuomintang retreated to Taiwan following its defeat by the communists.

The Kwantung Army (Japanese: 関東軍, Kantō-gun) was a general army of the Imperial Japanese Army from 1919 to 1945.

The Kwantung Army was formed in 1906 as a security force for the Kwantung Leased Territory and South Manchurian Railway Zone after the Russo-Japanese War of 1904–1905 and expanded into an army group during the interwar period to support Japanese interests in China, Manchuria, and Mongolia. The Kwantung Army became the most prestigious command in the Imperial Japanese Army, and many of its personnel won promotions to high positions in the Japanese military and civil government, including Hideki Tojo and Seishirō Itagaki. The Kwantung Army was largely responsible for the establishment and proxy control of the Japanese puppet-state of Manchukuo in Manchuria and functioned as one of the main Japanese fighting forces during the 1937–1945 Second Sino-Japanese War.

The First Indochina War (generally known as the Indochina War in France, and as the Anti-French Resistance War in Vietnam, and alternatively internationally as the French Indochina War) was fought in Indochina between France and the Việt Minh, and their respective allies, from 19 December 1946 until 1 August 1954. The Việt Minh was led by Võ Nguyên Giáp and Hồ Chí Minh. The conflict mainly happened in Vietnam.

At the Potsdam Conference in July 1945, the Allied Combined Chiefs of Staff decided that Indochina south of latitude 16° north was to be included in the Southeast Asia Command under British Admiral Mountbatten. The French return to southern Indochina was also supported by the Allies. On V-J Day, September 2, Hồ Chí Minh proclaimed in Hanoi the establishment of the Democratic Republic of Vietnam (DRV). Also in September 1945, Chinese forces entered Hanoi, and Japanese forces to the north of that line surrendered to Generalissimo Chiang Kai-shek. At the same time, British forces landed in Saigon, and Japanese forces in the south surrendered to the British. The Chinese acknowledged the DRV and the communist-led Việt Minh, then in power in Hanoi, even though they also supported pro-Chinese nationalist factions. The British refused to do that in Saigon, and deferred to the French. The DRV ruled as the only civil government in all of Vietnam for a period of about 20 days, after the abdication of Emperor Bảo Đại, who had governed Vietnam since 1926.

The century of humiliation (simplified Chinese: 百年国耻; traditional Chinese: 百年國恥; pinyin: bǎinián guóchǐ) was a period in Chinese history beginning with the First Opium War (1839–1842), and ending in 1945 with China (then the Republic of China) emerging out of the Second World War as one of the Big Four and established as a permanent member of the United Nations Security Council, or alternatively, ending in 1949 with the founding of the People's Republic of China. The century-long period is typified by the decline, defeat and political fragmentation of the Qing dynasty and the subsequent Republic of China, which led to demoralizing foreign intervention, annexation and subjugation of China by Western powers, Russia, and Japan.

The characterization of the period as a "humiliation" arose with an atmosphere of Chinese nationalism following China's defeat in the First Sino-Japanese War of 1894–1895 and the subsequent events including the scramble for concessions in the late 1890s. Since then the idea of national humiliation became a focus of discussions among many Chinese writers and scholars, although they differed somewhat in their understandings of national humiliation; ordinary scholars and constitutionalists also had different understanding of their home country from the anti-Qing revolutionaries in the late Qing period. The idea of national humiliation was also mentioned in late Qing textbooks.

Chahar (Mongolian: ᠴᠠᠬᠠᠷ/ Чахар; Chinese: 察哈爾; pinyin: Cháhā'ěr), also known as Chaha'er, Chakhar or Qahar, was a province of the Republic of China in existence from 1912 to 1936, mostly covering territory in what is part of Eastern Inner Mongolia. It was named after the Chahar Mongols.
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).

The Japanese invasion of French Indochina (仏印進駐, Futsu-in shinchū) (French: Invasion japonaise de l'Indochine) was a short undeclared military confrontation between Japan and Vichy France in northern French Indochina. Fighting lasted from 22 to 26 September 1940; the same time as the Battle of South Guangxi in the Sino-Japanese War, which was the main objective as to why Japan occupied Vietnam during this time.

The main objective of the Japanese was to prevent China from importing arms and fuel through French Indochina along the Kunming–Haiphong railway, from the Indochinese port of Haiphong, through the capital of Hanoi to the Chinese city of Kunming in Yunnan.

The National Day of the Republic of China, also referred to as Double Ten Day or Double Tenth Day, is a public holiday on 10 October, now held annually as national day in the Republic of China (ROC, commonly known as Taiwan). It commemorates the start of the Wuchang Uprising on 10 October 1911 which ultimately led to the establishment of the Republic of China on 1 January 1912, and the collapse of the imperial Qing dynasty, ending 2,133 years of imperial rule of China since the Qin dynasty. The day was once held as a public holiday in mainland China during the Mainland Period of the ROC before 1949. The subsequent People's Republic of China continues to observe the Anniversary of the Xinhai Revolution on the same date but not as a public holiday and places more emphasis on its revolutionary characteristics as a commemoration of a historical event rather than celebrating it as the founding of the Republic of China.

Following the consequence of the Chinese Civil War, the ROC government lost control of mainland China to the Chinese Communist Party and retreated to the island of Taiwan in December 1949. The National Day is now mainly celebrated in the Taiwan Area, thus the name "Taiwan National Day" is also used by some groups, but it is also celebrated by many overseas Chinese communities.

The National Languages Committee was established in 1919 by the Ministry of Education of the Republic of China with the purpose of standardizing and popularizing the usage of Standard Chinese in the country. The committee was known in English as the Mandarin Promotion Council or the National Languages Promotion Committee until 2003, but the Chinese name has not changed. The phrase Guoyu (國語 "National language") typically refers to Standard Chinese, but could also be interpreted as referring to "national languages". The reorganization of the Executive Yuan made the duties of the National Languages Committee be transferred to the Department of Lifelong Education's fourth sector (Reading and Language Education) from 2013.

It was created as the Preparatory Commission for the Unification of the National Language by the Republic (then still based in Nanjing) on 21 April 1919. On 12 December 1928, the commission was renamed to the Preparatory Committee for the Unification of the National Language, headed by Woo Tsin-hang and had 31 members. The committee was revived in 1983 as the Mandarin Promotion Council based on Taiwan.

The Hangzhou City Wall was the city wall that once surrounded Hangzhou during the medieval and early modern periods of imperial China. Despite being the most populous city in the world during the Song and early Yuan dynasties, the historic city was much smaller than the borders of the present Hangzhou Municipality and only surrounded the districts immediately east of West Lake in the present city's urban core. The walls were largely dismantled in the early 20th century and what remains has largely been rebuilt and maintained as tourist attractions, but they were a significant part of Hangzhou's historical urban identity and the wall's course and gates are still evidenced by many aspects of modern Hangzhou's design and place names.