Geography of Taiwan in the context of "Taiwan under Japanese rule"

Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main island of Taiwan, also known as Formosa, lies between the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. It has an area of 35,808 square kilometres (13,826 square miles), with mountain ranges dominating the eastern two-thirds and plains in the western third, where its highly urbanized population is concentrated. The combined territories under ROC control consist of 168 islands in total covering 36,193 square kilometres (13,974 square miles). The largest metropolitan area is formed by Taipei (the capital), New Taipei City, and Keelung. With around 23.9 million inhabitants, Taiwan is among the most densely populated countries.

Taiwan has been settled for at least 25,000 years. Ancestors of Taiwanese indigenous peoples settled the island around 6,000 years ago. In the 17th century, large-scale Han Chinese immigration began under Dutch colonial rule and continued under the Kingdom of Tungning, the first predominantly Han Chinese state in Taiwanese history. The island was annexed in 1683 by the Qing dynasty and ceded to the Empire of Japan in 1895. The Republic of China, which had overthrown the Qing in 1912 under the leadership of Sun Yat-sen, assumed control following the surrender of Japan in World War II. But with the loss of mainland China to the Communists in the Chinese Civil War, the government moved to Taiwan in 1949 under the Kuomintang (KMT).

Most information about Taiwan before the arrival of the Dutch East India Company in 1624 comes from archaeological finds throughout the island. The earliest evidence of human habitation dates back 20,000 to 30,000 years, when lower sea levels exposed the Taiwan Strait as a land bridge. Around 5,000 years ago, farmers from what is now the southeast coast of China settled on the island. These people are believed to have been speakers of Austronesian languages, which dispersed from Taiwan across the islands of the Pacific and Indian Oceans. The current Taiwanese aborigines are believed to be their descendants.

The Ryukyu Islands (Japanese: 琉球列島, Hepburn: Ryūkyū Rettō), also known as the Nansei Islands (南西諸島, Nansei Shotō; lit. 'Southwest Islands') or the Ryukyu Arc (琉球弧, Ryūkyū-ko), are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ryukyu Islands are divided into the Satsunan Islands (Ōsumi, Tokara and Amami) and Okinawa Prefecture (Daitō, Miyako, Yaeyama, Senkaku, Okinawa, Sakishima Islands (further divided into the Miyako and Yaeyama Islands), and Yonaguni as the westernmost). The larger ones are mostly volcanic islands and the smaller mostly coral. The largest is Okinawa Island.

The climate of the islands ranges from humid subtropical climate (Köppen climate classification Cfa) in the north to tropical rainforest climate (Köppen climate classification Af) in the south. Precipitation is very high and is affected by the rainy season and typhoons. Except the outlying Daitō Islands, the island chain has two major geologic boundaries, the Tokara Strait (between the Tokara and Amami Islands) and the Kerama Gap (between the Okinawa and Miyako Islands). The islands beyond the Tokara Strait are characterized by their coral reefs.

The Taiwan Area, also called the Taiwan Area of the Republic of China, the free area of the Republic of China, and the "Tai-Min Area (Taiwan and Fuchien)", is a term used to refer to the territories under the effective control of the Republic of China (ROC, commonly known as "Taiwan"). It has been in official use since the Additional Articles of the Constitution of the Republic of China took effect, ending temporary anti-communist provisions on 1 May 1991. The term is also used in the 1992 Cross-Strait Act.

The area currently under the definition consists of the island groups of Taiwan, Penghu, Kinmen, Matsu and some minor islands. The collective term "Tai-Peng-Kin-Ma" is literally equivalent except that it only refers to the geographical areas of Taiwan, Penghu, Kinmen and Matsu Area, to the exclusion of Wuqiu, Dongsha Island, and Taiping Island.

The islands comprising the Taiwan Area under the jurisdiction of the Republic of China (ROC) are classified into various island groups. The island of Taiwan, also known as Formosa, is the largest island and the main component of the ROC-controlled territories. Islands that are claimed by the ROC but not administered, including those administered by the People's Republic of China (PRC), and those disputed with other countries such as the Tiaoyutai Islands (Senkaku Islands) and most of the South China Sea Islands, are excluded from this list.

At the adoption of Additional Articles of the Constitution of the Republic of China in the 1990s, these islands collectively form the "Free area of the Republic of China" or known alternatively as "Taiwan Area", which legally defines the territorial extent under the actual control of the ROC government.

Taiwanese indigenous peoples, formerly called Taiwanese aborigines, are the indigenous peoples of Taiwan, with the nationally recognized subgroups numbering about 600,303 or 3% of the island's population. This total is increased to more than 800,000 if the indigenous peoples of the plains in Taiwan are included, pending future official recognition. When including those of mixed ancestry, such a number is possibly more than a million. Academic research suggests that their ancestors have been living on Taiwan for approximately 15,000 years. A wide body of evidence suggests that the Taiwanese indigenous peoples had maintained regular trade networks with numerous regional cultures of Southeast Asia before Han Chinese settled on the island from the 17th century, at the behest of the Dutch colonial administration and later by successive governments towards the 20th century.

Taiwanese indigenous peoples are Austronesians, with linguistic, genetic and cultural ties to other Austronesian peoples. Taiwan is the origin and linguistic homeland of the oceanic Austronesian expansion, whose descendant groups today include the majority of the ethnic groups throughout many parts of East and Southeast Asia as well as Oceania and even Africa which includes Brunei, East Timor, Indonesia, Malaysia, Madagascar, Philippines, Micronesia, Island Melanesia and Polynesia.

The Qing dynasty ruled over the island of Taiwan from 1683 to 1895. The Qing dynasty sent an army led by General Shi Lang to defeat the Ming loyalist Kingdom of Tungning in 1683. Taiwan was then formally annexed in April 1684.

Taiwan was governed as Taiwan Prefecture of Fujian Province until the establishment of Fujian–Taiwan Province in 1887. The Qing dynasty extended its control of Taiwan across the western coast, the western plains, and the northeast over the 18th and 19th centuries. The Qing government did not pursue an active colonization policy and restricted Han migration to Taiwan for the majority of its rule out of fear of rebellion and conflict with the Taiwanese indigenous peoples. Han migrants were barred from settling on indigenous land, and markers were used to delineate the boundaries of settled areas and mountain dwelling aborigines. Despite Qing restrictions, settlers continued to enter Taiwan and push the boundaries of indigenous territory, resulting in the expansion of Qing borders in Taiwan to encompass all of the western plains and the northeast. The lack of state-sponsored colonial administration led to frequent rebellions by Han settlers. By the end of Qing rule in 1895, Taiwan's ethnic Han population had increased by over two million, with some estimates suggesting over three million, making Hans the majority demographic on the island. Taiwan was ceded to the Empire of Japan with the Treaty of Shimonoseki in April 1895, following the Qing dynasty's defeat in the First Sino-Japanese War.

The Treaty of Shimonoseki (Japanese: 下関条約, Hepburn: Shimonoseki Jōyaku), also known as the Treaty of Maguan in China or the Treaty of Bakan (馬關條約, Bakan Jōyaku) in Japan, was signed in Shimonoseki, Japan, on April 17, 1895, between the Empire of Japan and the Qing dynasty. The treaty ended the First Sino-Japanese War, in which the Japanese decisively defeated the Chinese land and naval forces. The treaty was signed at the Shunpanrō [ja] hotel by Count Itō Hirobumi and Viscount Mutsu Munemitsu for Japan and Li Hongzhang and his son Li Jingfang on behalf of China.

The peace conference took place from March 20 to April 17, 1895, and the treaty followed and superseded the Sino-Japanese Friendship and Trade Treaty of 1871. It consisted of 11 articles which provided for the termination of China's tributary relations with Korea; required that China pay an indemnity of 200 million taels and cede Taiwan (Formosa), the Penghu (Pescadores) Islands, and the Liaodong Peninsula to Japan; and opened four cities (Shashi, Chongqing, Suzhou, and Hangzhou) to Japan as trading ports. However, due to the diplomatic Triple Intervention of Russia, Germany, and France just one week after the treaty was signed, the Japanese withdrew their claim to the Liaodong Peninsula in return for an additional war indemnity of 30 million taels from China.

Following their defeat in the Chinese Civil War, the remnants of the Nationalist government of the Republic of China (ROC), alongside many refugees, retreated to the island of Taiwan (Formosa) beginning on December 7, 1949. The exodus is sometimes called the Great Retreat (Chinese: 大撤退) in Taiwan. The Nationalist Kuomintang party (KMT), its officers, and approximately 2 million ROC troops took part in the retreat, in addition to many civilians and refugees, fleeing the advance of the People's Liberation Army (PLA) of the Chinese Communist Party (CCP). The CCP, who now effectively controlled most of mainland China, spent the subsequent years purging any remnant Nationalist agents in western and southern China, solidifying the rule of the newly established People's Republic of China (PRC).

ROC troops mostly fled to Taiwan from provinces in southern China, in particular Sichuan Province, where the last stand of the ROC's main army took place. The flight to Taiwan took place over four months after Mao Zedong had proclaimed the founding of the PRC in Beijing on October 1, 1949. The island of Taiwan remained part of Japan during the occupation until Japan severed its territorial claims in the Treaty of San Francisco, which came into effect in 1952. In addition, some of the ROC troops in Yunnan also fled to Burma, where the insurgency lasted until 1961.