Sea of Japan
The Sea of Japan is the marginal sea between the Japanese archipelago, the Korean Peninsula and Russia. The Japanese archipelago separates the sea from the Pacific Ocean, it is bordered by Japan and Russia. Like the Mediterranean Sea, it has no tides due to its nearly complete enclosure from the Pacific Ocean; this isolation reflects in the fauna species and in the water salinity, lower than in the ocean. The sea has bays or capes, its water balance is determined by the inflow and outflow through the straits connecting it to the neighboring seas and Pacific Ocean. Few rivers discharge into the sea and their total contribution to the water exchange is within 1%; the seawater has an elevated concentration of dissolved oxygen that results in high biological productivity. Therefore, fishing is the dominant economic activity in the region; the intensity of shipments across the sea has been moderate owing to political issues, but it is increasing as a result of the growth of East Asian economies. Sea of Japan is the dominant term used in English for the sea, the name in most European languages is equivalent, but it is sometimes called by different names in surrounding countries reflecting historical claims to hegemony over the sea.
The sea is called Rìběn hǎi or Jīng hǎi in China, Yaponskoye more in Russia, Chosŏn Tonghae in North Korea, Donghae in South Korea. A naming dispute exists about the sea name, with South Korea promoting the English translation of its native name as the East Sea; the use of the term "Sea of Japan" as the dominant name is a point of contention. South Korea wants the name "East Sea" to instead of or in addition to "Sea of Japan; the primary issue in the dispute revolves around a disagreement about when the name "Sea of Japan" became the international standard. Japan claims the term has been the international standard since at least the early 19th century, while the Koreas claim that the term "Sea of Japan" arose while Korea was under Japanese rule, before that occupation other names such as "Sea of Korea" or "East Sea" were used in English; the International Hydrographic Organization, the international governing body for the naming bodies of water around the world, in 2012 recognized the term "Sea of Japan" as the only title for the sea, stated they would will review the issue again in 2017.
For centuries, the sea had protected Japan from land invasions by the Mongols. It had long been navigated by Asian and, from the 18th century, by European ships. Russian expeditions of 1733–1743 mapped Sakhalin and the Japanese islands. In the 1780s, the Frenchman Jean-François de Galaup, comte de Lapérouse, traveled northward across the sea through the strait named after him. In 1796, a British naval officer, William Robert Broughton explored the Strait of Tartary, the eastern coast of the Russian Far East and the Korean Peninsula. In 1803–1806, the Russian navigator Adam Johann von Krusenstern while sailing across the globe in the ship Nadezhda explored, in passing, the Sea of Japan and the eastern shores of Japanese islands. In 1849, another Russian explorer Gennady Nevelskoy discovered the strait between the continent and Sakhalin and mapped the northern part of the Strait of Tartary. Russian expeditions were made in 1853–1854 and 1886–1889 to measure the surface temperatures and record the tides.
They documented the cyclonal character of the sea currents. Other notable expeditions of the 19th century include the American North Pacific Exploring and Surveying Expedition and British Challenger expedition; the aquatic life was described by V. K. Brazhnikov in P. Yu. Schmidt in 1903–1904; the Japanese scientific studies of the sea became systematic since the 1920s. American and French whaleships cruised for whales in the sea between 1848 and 1892. Most entered the sea via Korea Strait and left via La Pérouse Strait, but some entered and exited via Tsugaru Strait, they targeted right whales, but began catching humpbacks as right whale catches declined. They made attempts to catch blue and fin whales, but these species invariably sank after being killed. Right whales were caught from March with peak catches in May and June. During the peak years of 1848 and 1849 a total of nearly 160 vessels cruised in the Sea of Japan, with lesser numbers in following years; the Sea of Japan was a landlocked sea.
The onset of formation of the Japan Arc was in the Early Miocene. The Early Miocene period corresponds to the Japan Sea starting to open, the northern and southern parts of the Japanese archipelago separating from each other. During the Miocene, there was expansion of Sea of Japan; the north part of the Japanese archipelago was further fragmented until orogenesis of the northeastern Japanese archipelago began in the Late Miocene. The south part of the Japanese archipelago remained as a large landmass; the land area had expanded northward in the Late Miocene. The orogenesis of high mountain ranges in northeastern Japan started in Late Miocene and lasted in Pliocene also. Nowadays the Sea of Japan is bounded by the Russian mainland and Sakhalin island to the north, the Korean Peninsula to the west, the Japanese islands of Hokkaidō, Honshū and Kyūshū to the east and south, it is connected to other seas by five straits: the Strait of Tartary between the Asia
Romanization of Japanese
The romanization of Japanese is the use of Latin script to write the Japanese language. This method of writing is sometimes referred to in Japanese as rōmaji (. There are several different romanization systems; the three main ones are Hepburn romanization, Kunrei-shiki romanization, Nihon-shiki romanization. Variants of the Hepburn system are the most used. Japanese is written in a combination of logographic characters borrowed from Chinese and syllabic scripts that ultimately derive from Chinese characters. Rōmaji may be used in any context where Japanese text is targeted at non-Japanese speakers who cannot read kanji or kana, such as for names on street signs and passports, in dictionaries and textbooks for foreign learners of the language, it is used to transliterate Japanese terms in text written in English on topics related to Japan, such as linguistics, literature and culture. Rōmaji is the most common way to input Japanese into word processors and computers, may be used to display Japanese on devices that do not support the display of Japanese characters.
All Japanese who have attended elementary school since World War II have been taught to read and write romanized Japanese. Therefore all Japanese are able to read and write Japanese using rōmaji, although it is rare in Japan to use this method to write Japanese, most Japanese are more comfortable reading kanji and kana; the earliest Japanese romanization system was based on Portuguese orthography. It was developed around 1548 by a Japanese Catholic named Yajiro. Jesuit priests used the system in a series of printed Catholic books so that missionaries could preach and teach their converts without learning to read Japanese orthography; the most useful of these books for the study of early modern Japanese pronunciation and early attempts at romanization was the Nippo jisho, a Japanese–Portuguese dictionary written in 1603. In general, the early Portuguese system was similar to Nihon-shiki in its treatment of vowels; some consonants were transliterated differently: for instance, the /k/ consonant was rendered, depending on context, as either c or q, the /ɸ/ consonant as f.
The Jesuits printed some secular books in romanized Japanese, including the first printed edition of the Japanese classic The Tale of the Heike, romanized as Feiqe no monogatari, a collection of Aesop's Fables. The latter continued to be read after the suppression of Christianity in Japan. Following the expulsion of Christians from Japan in the late 1590s and early 17th century, rōmaji fell out of use and was used sporadically in foreign texts until the mid-19th century, when Japan opened up again. From the mid-19th century onward, several systems were developed, culminating in the Hepburn system, named after James Curtis Hepburn who used it in the third edition of his Japanese–English dictionary, published in 1887; the Hepburn system included representation of some sounds. For example, Lafcadio Hearn's book Kwaidan shows the older kw- pronunciation. In the Meiji era, some Japanese scholars advocated abolishing the Japanese writing system and using rōmaji instead; the Nihon-shiki romanization was an outgrowth of that movement.
Several Japanese texts were published in rōmaji during this period, but it failed to catch on. In the early 20th century, some scholars devised syllabary systems with characters derived from Latin that were less popular since they were not based on any historical use of the Latin script. Today, the use of Nihon-shiki for writing Japanese is advocated by the Oomoto sect and some independent organizations. During the Allied occupation of Japan, the government of the Supreme Commander for the Allied Powers made it official policy to romanize Japanese. However, that policy failed and a more moderate attempt at Japanese script reform followed. Hepburn romanization follows English phonology with Romance vowels, it is an intuitive method of showing Anglophones the pronunciation of a word in Japanese. It was standardized in the United states as American National Standard System for the Romanization of Japanese, but that status was abolished on October 6, 1994. Hepburn is the most common romanization system in use today in the English-speaking world.
The Revised Hepburn system of romanization uses a macron to indicate some long vowels and an apostrophe to note the separation of confused phonemes. For example, the name じゅんいちろう is written with the kana characters ju-n-i-chi-ro-u, romanized as Jun'ichirō in Revised Hepburn. Without the apostrophe, it would not be possible to distinguish this correct reading from the incorrect ju-ni-chi-ro-u; this system is used in Japan and among foreign students and academics. Nihon-shiki romanization, which predates the Hepburn system, was invented as a method for Japanese to write their own language in Latin characters, rather than to transcribe it for Westerners as Hepburn was, it follows the Japanese syllabary strictly, with no adjustments for changes in pronunciation. It is therefore the only major system of romanization that allows near-lossless mapping to and from kana, it has been st
Romanization of Russian
Romanization of Russian is the process of transliterating the Russian language from the Cyrillic script into the Latin script. As well as its primary use for citing Russian names and words in languages which use a Latin alphabet, romanization is essential for computer users to input Russian text who either do not have a keyboard or word processor set up for inputting Cyrillic, or else are not capable of typing using a native Russian keyboard layout. In the latter case, they would type using a system of transliteration fitted for their keyboard layout, such as for English QWERTY keyboards, use an automated tool to convert the text into Cyrillic. There are a number of incompatible standards for the Romanization of Russian Cyrillic, with none of them having received much popularity and in reality transliteration is carried out without any uniform standards. Scientific transliteration known as the International Scholarly System, is a system, used in linguistics since the 19th century, it is formed the basis of the GOST and ISO systems.
OST 8483 was the first Soviet standard on romanization of Russian, introduced in 16 October 1935. Developed by the National Administration for Geodesy and Cartography at the USSR Council of Ministers, GOST 16876-71 has been in service for over 30 years and is the only romanization system that does not use diacritics. Replaced by GOST 7.79-2000. This standard is an equivalent of GOST 16876-71 and was adopted as an official standard of the COMECON. GOST 7.79-2000 System of Standards on Information and Publishing–Rules for Transliteration of the Cyrillic Characters Using the Latin Alphabet is an adoption of ISO 9:1995. It is the Commonwealth of Independent States. GOST 52535.1-2006 Identification cards. Machine readable travel documents. Part 1. Machine readable passports is an adoption of an ICAO standard for travel documents, it was used in Russian passports for a short period during 2010–2013. The standard was substituted in 2013 by GOST R ISO/IEC 7501-1-2013, which does not contain romanization, but directly refers to the ICAO romanization.
Names on street and road signs in the Soviet Union were romanized according to GOST 10807-78, amended by newer Russian GOST R 52290-2004, the romanizations in both the standards are identical. ISO/R 9, established in 1954 and updated in 1968, was the adoption of the scientific transliteration by the International Organization for Standardization, it covers seven other Slavic languages. ISO 9:1995 is the current transliteration standard from ISO, it is based on its predecessor ISO/R 9:1968. ISO 9:1995 is the first language-independent, univocal system of one character for one character equivalents that faithfully represents the original and allows for reverse transliteration for Cyrillic text in any contemporary language; the UNGEGN, a Working Group of the United Nations, in 1987 recommended a romanization system for geographical names, based on the 1983 version of GOST 16876-71. It may be found in some international cartographic products. American Library Association and Library of Congress romanization tables for Slavic alphabets are used in North American libraries and in the British Library since 1975.
The formal, unambiguous version of the system requires some diacritics and two-letter tie characters, which are omitted in practice. British Standard 2979:1958 is the main system of the Oxford University Press, a variation was used by the British Library to catalogue publications acquired up to 1975; the BGN/PCGN system is intuitive for Anglophones to read and pronounce. In many publications, a simplified form of the system is used to render English versions of Russian names converting ë to yo, simplifying -iy and -yy endings to -y, omitting apostrophes for ъ and ь, it can be rendered using only the basic letters and punctuation found on English-language keyboards: no diacritics or unusual letters are required, although the interpunct character may be used to avoid ambiguity. This particular standard is part of the BGN/PCGN romanization system, developed by the United States Board on Geographic Names and by the Permanent Committee on Geographical Names for British Official Use; the portion of the system pertaining to the Russian language was adopted by BGN in 1944 and by PCGN in 1947.
In Soviet international passports, transliteration was based on French rules, so all of the names were transliterated in a French-style system. In 1997, with the introduction of new Russian passports, a diacritic-free English-oriented system was established by the Ministry of Internal Affairs, but this system was abandoned in 2010. In 2006, GOST 52535.1-2006 was adopted, which defines technical requirements and standards for Russian international passports and introduces its own system of transliteration. In 2010, the Federal Migratory Service of Russia approved Order No. 26, stating that all personal names in the passports issued after 2010 must be transliterated using GOST 52535.1-2006. Because of some differences between the new system and the old one, citizens who wanted to retain the old version of a name's transliteration, in the old pre-2010 passport, might apply to the local migratory office before acquiring a new passport; the standard was abandoned in 2013. In 2013, Order No. 320 of the Federal Migratory Service of Russia came into force.
It states that all pe
Benten-jima is a small deserted island west by northwest of Cape Sōya, Hokkaidō, Japan. It is the northernmost piece of land under Japanese control; the island is 1 km north of Sannai settlement. Another island called. Benten-jima is 0.005 square kilometres in area, its perimeter is 0.5 kilometres, its highest point is 20 metres above sea level. It is named after Benzaiten, once enshrined on the island; the wildlife includes many seabirds, Steller sea lions, kombu kelp, sea urchins. Geography of Japan Japanese Archipelago Extreme points of Japan 宗谷岬弁天島におけるトド調査始まる, from マリンネット北海道
The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti
The Trans-Siberian Railway is a network of railways connecting Moscow with the Russian Far East. With a length of 9,289 kilometres, from Moscow to Vladivostok, it is the longest railway line in the world. There are connecting branch lines into Mongolia and North Korea, it has connected Moscow with Vladivostok since 1916, is still being expanded. It was built between 1891 and 1916 under the supervision of Russian government ministers appointed by Tsar Alexander III and his son, the Tsarevich Nicholas. Before it had been completed, it attracted travellers who wrote of their adventures; the railway is associated with the main transcontinental Russian line that connects hundreds of large and small cities of the European and Asian parts of Russia. At a Moscow–Vladivostok track length of 9,289 kilometres, it spans a record eight time zones. Taking eight days to complete the journey, it is the third-longest single continuous service in the world, after the Moscow–Pyongyang 10,267 kilometres and the Kiev–Vladivostok 11,085 kilometres services, both of which follow the Trans-Siberian for much of their routes.
The main route of the Trans-Siberian Railway begins in Moscow at Yaroslavsky Vokzal, runs through Yaroslavl, Omsk, Irkutsk, Ulan-Ude and Khabarovsk to Vladivostok via southern Siberia. A second primary route is the Trans-Manchurian, which coincides with the Trans-Siberian east of Chita as far as Tarskaya, about 1,000 km east of Lake Baikal. From Tarskaya the Trans-Manchurian heads southeast, via Harbin and Mudanjiang in China's Northeastern Provinces, joining with the main route in Ussuriysk just north of Vladivostok; this is the oldest railway route to Vladivostok. While there are no traverse passenger services on this branch, it is still used by several international passenger services between Russia and China; the third primary route is the Trans-Mongolian Railway, which coincides with the Trans-Siberian as far as Ulan-Ude on Lake Baikal's eastern shore. From Ulan-Ude the Trans-Mongolian heads south to Ulaan-Baatar before making its way southeast to Beijing. In 1991, a fourth route running further to the north was completed, after more than five decades of sporadic work.
Known as the Baikal Amur Mainline, this recent extension departs from the Trans-Siberian line at Taishet several hundred miles west of Lake Baikal and passes the lake at its northernmost extremity. It crosses the Amur River at Komsomolsk-na-Amure, reaches the Tatar Strait at Sovetskaya Gavan. On 13 October 2011, a train from Khasan made its inaugural run to North Korea. In the late 19th century, the development of Siberia was hampered by poor transport links within the region, as well as with the rest of the country. Aside from the Great Siberian Route, good roads suitable for wheeled transport were rare. For about five months of the year, rivers were the main means of transport. During the cold half of the year and passengers travelled by horse-drawn sledges over the winter roads, many of which were the same rivers, but ice-covered; the first steamboat on the River Ob, Nikita Myasnikov's Osnova, was launched in 1844. But early beginnings were difficult, it was not until 1857 that steamboat shipping started developing on the Ob system in a serious way.
Steamboats started operating on the Yenisei in 1863, on the Lena and Amur in the 1870s. While the comparative flatness of Western Siberia was at least well served by the gigantic Ob–Irtysh–Tobol–Chulym river system, the mighty rivers of Eastern Siberia—the Yenisei, the upper course of the Angara River, the Lena—were navigable only in the north-south direction. An attempt to remedy the situation by building the Ob-Yenisei Canal was not successful. Only a railway could be a real solution to the region's transport problems; the first railway projects in Siberia emerged after the completion of the Saint Petersburg–Moscow Railway in 1851. One of the first was the Irkutsk–Chita project, proposed by the American entrepreneur Perry Collins and supported by Transport Minister Constantine Possiet with a view toward connecting Moscow to the Amur River, to the Pacific Ocean. Siberia's governor, Nikolay Muravyov-Amursky, was anxious to advance the colonisation of the Russian Far East, but his plans could not materialise as long as the colonists had to import grain and other food from China and Korea.
It was on Muravyov's initiative. Before 1880, the central government had ignored these projects, because of the weakness of Siberian enterprises, a clumsy bureaucracy, fear of financial risk. By 1880, there were a large number of rejected and upcoming applications for permission to construct railways to connect Siberia with the Pacific, but not Eastern Russia; this made connecting Siberia with Central Russia a pressing concern. The design process lasted 10 years. Along with the route constructed, alternative projects were proposed: Southern route: via Kazakhstan, Barnaul and Mongolia. Northern route: via Tyumen, Tomsk and the modern Baikal Amur Mainline or through Yakutsk; the line was divided into seven sections, on all or mo
Sakhalin is Russia's largest island, lying in the North Pacific Ocean between 45°50' and 54°24' N. It is administered as part of Sakhalin Oblast. Sakhalin, about one third the size of Honshu, is just off the east coast of Russia, just north of Japan; the island's population was 497,973 as of the 2010 census, made up of ethnic Russians and a smaller Korean community. The indigenous peoples of the island are the Ainu and Nivkhs. Sakhalin was claimed by both Japan over the course of the 19th and 20th centuries; these disputes sometimes involved military conflict and divisions of the island between the two powers. In 1875, Japan ceded its claims to Russia in exchange for the northern Kuril Islands. In 1905, following the Russo-Japanese War, the island was divided, with the south going to Japan. Russia has held all of the island since seizing the Japanese portion—as well as all the Kuril Islands—in the final days of World War II in 1945. Japan no longer claims any of Sakhalin. Most Ainu on Sakhalin moved to Hokkaido, only 43 kilometres to the south, when the Japanese were displaced from the island in 1949.
The island is known in Russian as Sakhalin. In Chinese, it is known as Kuye. In Japanese, it is known as Karafuto or, as Saharin; the spelling Saghalien may be found in historical texts. Choka is another name found in the early literature and seems to have been the name used by the islanders themselves, but it is not clear whether these were the Gilyak or the Ainu; the European names derive from misinterpretation of a Manchu name ᠰᠠᡥᠠᠯᡳᠶᠠᠨᡠᠯᠠ ᠠᠩᡤᠠᡥᠠᡩᠠ sahaliyan ula angga hada. Sahaliyan, the word, borrowed in the form of "Sakhalin", means "black" in Manchu, ula means "river" and sahaliyan ula is the proper Manchu name of the Amur River, its Japanese name, Karafuto comes from Ainu kamuy kar put ya mosir, which means "the island a god has created at the estuary". The name was used by the Japanese during their possession of its southern part. Sakhalin was inhabited in the Neolithic Stone Age. Flint implements such as those found in Siberia have been found at Dui and Kusunai in great numbers, as well as polished stone hatchets similar to European examples, primitive pottery with decorations like those of the Olonets, stone weights used with fishing nets.
A population familiar with bronze left traces in earthen walls and kitchen-middens on Aniva Bay. Among the indigenous people of Sakhalin are the Ainu in the southern half, the Oroks in the central region, the Nivkhs in the north. Chinese chronicled the Hezhe tribes, which had a way of life based on fishing; the Mongol Empire made some efforts to subjugate the native people of Sakhalin starting in about 1264 A. D. According to Yuanshi, the official history of the Yuan dynasty, the Mongols militarily subdued the Guwei, by 1308, all inhabitants of Sakhalin had submitted to the Yuan; the Nivkhs and the Oroks were subjugated earlier, whereas the Ainu people submitted to the Mongols later. Following their subjugation, Gǔwéi elders made tributary visits to Yuan posts located at Wuleihe and Boluohe until the end of the Mongol Yuan dynasty in China. In the early Ming dynasty, the tributary relationship was re-established. By the middle of the 15th century, following the introduction of Chinese political and commercial institutions in the Amur region, the Sakhalin Ainu were making frequent tributary visits to Chinese-controlled outposts.
Chinese of the Ming dynasty knew the island as Kuyi or Kuwu, as Kuye, as it is known today. There is some evidence that the Ming eunuch Admiral Yishiha reached Sakhalin in 1413 during one of his expeditions to the lower Amur, granted Ming titles to a local chieftain. Under the Ming dynasty, commerce in Northeast Asia and Sakhalin was placed under the "system for subjugated peoples", or ximin tizhi; this suggests that the island was at least nominally under the administration of the Nurgan Regional Military Commission, established by Yishiha near today's village of Tyr on the Siberian mainland in 1411, continued operating until the mid-1430s. A Ming boundary stone still exists on the island. According to Wei Yuan's work Military history of the Qing dynasty, the Later Jin sent 400 troops to Sakhalin in 1616 in response to Japanese activity in the area, but withdrew, judging there to be no major threat to their control of the island. In an early colonization attempt, a Japanese settlement was established at Ootomari on Sakhalin's southern end in 1679.
Cartographers of the Matsumae clan created a map of the island and called it "Kita-Ezo". The 1689 Nerchinsk Treaty between Russia and China, which defined the Stanovoy Mountains as their mutual border, made no explicit mention of the island. Local people were forced to pay tribute at Qing posts, Qing officials sometimes granted titles to local elders, entrusting them with the task of "keeping the peace". By the mid-18th century, Qing officials had registered 56 surname groups.