Kaohsiung in the context of "Taiping Island"

New Taipei City is a special municipality located in northern Taiwan. The city is home to an estimated population of 4,004,367 as of January 2023, making it the most populous city in Taiwan, and also the second largest special municipality by area, behind Kaohsiung. The top-level administrative divisions bordering New Taipei City are Keelung to the northeast, Yilan County to the southeast, and Taoyuan to the southwest, and it completely encloses the capital city of Taipei. Banqiao District is its municipal seat and biggest commercial area.

Before the establishment of Spanish and Dutch outposts in Tamsui in 1626, the area of present-day New Taipei City was mostly inhabited by Taiwanese indigenous peoples, mainly the Ketagalan people. From the late Qing era, the port of Tamsui was opened up to foreign traders as one of the treaty ports after the Qing dynasty of China signed the Treaty of Tientsin in June 1858. By the 1890s, the port of Tamsui accounted for 63 percent of the overall trade for entire Taiwan, port towns in the middle course of Tamsui River had also developed into bustling business and transportation centers. During the Japanese rule of Taiwan, the entire area of New Taipei City was organized as part of the Taihoku Prefecture. After the Republic of China took control of Taiwan in 1945, the present-day New Taipei City was designated on 7 January 1946 as Taipei County in Taiwan Province, which was constituted from the former Taihoku Prefecture, but not including present-day divisions of Taipei City, Keelung and Yilan County, the latter of which became detached from Taipei County on 10 October 1950. Its county status remained until 25 December 2010 when it was promoted to special municipal status and renamed as "New Taipei City".

Keelung (/kiːˈlʊŋ/ kee-LUUNG; Chinese: 基隆; pinyin: Jīlóng; Pe̍h-ōe-jī: Ke-lâng), Chilung or Jilong (/dʒiːˈlʊŋ/ jee-LUUNG), officially known as Keelung City, is a major port city in northeastern Taiwan. The city is part of the Taipei–Keelung metropolitan area with neighboring New Taipei City and Taipei. Nicknamed the Rainy Port for its frequent rain and maritime role, the city is Taiwan's second largest seaport (after Kaohsiung), and was the world's 7th largest port in 1984.

In 1626, the Spanish established Fort San Salvador at present-day Keelung, an area inhabited by Taiwanese indigenous peoples. Control of the area eventually passed to the Qing dynasty. Fighting between China and Europeans around Keelung occurred in the 19th century during the First Opium War and the Sino-French War. The island of Taiwan was ceded to the Empire of Japan in 1895 after the First Sino-Japanese War; under Japanese rule the city was called Kirun. Keelung became part of Taiwan Province under the Republic of China after 1945. Administratively, the city became a first-level subdivision in 2018 after the provincial government was abolished.

Wade–Giles (/weɪd ˈdʒaɪlz/ wayd JYLZ) is a romanization system for Mandarin Chinese. It developed from the system produced by Thomas Francis Wade during the mid-19th century, and was given completed form with Herbert Giles's A Chinese–English Dictionary (1892).

The romanization systems in common use until the late 19th century were based on the Nanjing dialect, but Wade–Giles was based on the Beijing dialect and was the system of transcription familiar in the English-speaking world for most of the 20th century. Both of these kinds of transcription were used in postal romanizations (romanized place-names standardized for postal uses). In mainland China, Wade–Giles has been mostly replaced by Hanyu Pinyin, which was officially adopted in 1958, with exceptions for the romanized forms of some of the most commonly used names of locations and persons, and other proper nouns. The romanized name for most locations, persons and other proper nouns in Taiwan is based on the Wade–Giles derived romanized form, for example Kaohsiung, the Matsu Islands and Chiang Ching-kuo.

Pratas Island, also known as the Tungsha Islands or the Dongsha Islands (Chinese: 東沙群島; pinyin: Dōngshā Qúndǎo; Pe̍h-ōe-jī: Tang-soa Kûn-tó; lit. 'East Sand Islands'), is a coral island situated in the northern part of the South China Sea administered as part of Cijin District, Kaohsiung, Taiwan. It is located about 170 nautical miles (310 km; 200 mi) southeast of Hong Kong. It has an area of about 240 hectares (590 acres), including 64 hectares (160 acres) of lagoon, and is the largest of the South China Sea Islands. It is the location of the Dongsha Airport.

There are three undersea features in the waters associated with Pratas Island: Pratas Atoll, North Vereker Bank and South Vereker Bank. The atoll is circular, and the crescent-shaped Pratas Island occupies its western part. Below the ocean's surface to the northwest (21°N 116°E / 21°N 116°E / 21; 116) of Pratas Island, North Vereker Bank rises to 11 metres (36 ft) below sea level and South Vereker Bank to 58 metres (190 ft) below sea level.

Taiwan Province (Chinese: 臺灣省; pinyin: Táiwān Shěng; Pe̍h-ōe-jī: Tâi-oân-séng; PFS: Thòi-vàn-sén or Thòi-vân-sén) is a de jure administrative division of the Republic of China (Taiwan). Provinces remain a titular division as a part of the Constitution of the Republic of China, but are no longer considered to have any administrative function practically.

Taiwan Province covers approximately 69% of the island of Taiwan, and comprises around 31% of the total population. The province initially covered the entire island of Taiwan (Formosa), Penghu (the Pescadores), Orchid Island, Green Island, Xiaoliuqiu Island, and their surrounding islands. Between 1967 and 2014, six special municipalities (Kaohsiung, New Taipei, Taichung, Tainan, Taipei and Taoyuan) were split off from the province, all in the most populous regions.

Metropolitan areas were recognized by the government of the Republic of China (Taiwan) until 2010 and were separated into 5 metropolitan areas and 2 satellite cities. They were: Taipei, Taoyuan, Hsinchu, Taichung, Chiayi, Tainan, and Kaoshiung. All special municipalities are within these metropolitan areas.

The definition of metropolitan areas used by the ROC central government were:

Special municipality, historically known as Yuan-controlled municipality, is a first-level administrative division unit in Taiwan. It is the highest level of the country's administrative structure and is equivalent to a province. After the suspension of the provincial governments of 2018, the special municipalities along with provincial cities and counties have all governed directly under the central government.

Currently total six cities are designated as special municipalities: Taipei, Taoyuan, New Taipei, Taichung, Tainan, and Kaohsiung, all located in the most densely populated regions in the western half of the island. These special municipalities encompass five most populous metropolitan areas in Taiwan, accounting for more than two-thirds of the national population.