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108-412: (genus) (species) Claytosmunda is a genus of fern . It has only one extant species, Claytosmunda claytoniana ( synonym Osmunda claytoniana ), the interrupted fern , native to Eastern Asia , Eastern United States , and Eastern Canada . The specific epithet is named after the English-born Virginian botanist John Clayton . "Interrupted" describes the gap in middle of the blade left by

216-518: A centrally planned industrial economy. South Korea is a multi-party state with a capitalist market economy , alongside membership in the Organisation for Economic Co-operation and Development and the Group of Twenty . The two states have greatly diverged both culturally and economically since their partition, though they still share a common traditional culture and pre-Cold War history. Since

324-557: A species : see Botanical name and Specific name (zoology) . The rules for the scientific names of organisms are laid down in the nomenclature codes , which allow each species a single unique name that, for animals (including protists ), plants (also including algae and fungi ) and prokaryotes ( bacteria and archaea ), is Latin and binomial in form; this contrasts with common or vernacular names , which are non-standardized, can be non-unique, and typically also vary by country and language of usage. Except for viruses ,

432-619: A Silla prince whose influence made Mount Jiuhua one of the Four Sacred Mountains of Chinese Buddhism. Later Silla fell apart in the late 9th century, giving way to the tumultuous Later Three Kingdoms period (892–935), and Balhae was destroyed by the Khitans in 926. Goryeo unified the Later Three Kingdoms and received the last crown prince and much of the ruling class of Balhae, thus bringing about

540-554: A class system that consisted of yangban the noble class, jungin the middle class, yangin the common class, and cheonin the lowest class, which included occupations such as butchers, tanners, shamans, entertainers, and nobi , the equivalent of slaves, bondservants, or serfs . In 1592 and again in 1597, the Japanese invaded Korea ; the Korean military at the time was unprepared and untrained, due to two centuries of peace on

648-517: A combination of the adjectives ("high, lofty") with the name of a local Yemaek tribe, whose original name is thought to have been either " Guru" ( 溝樓 , 'Walled City', inferred from some toponyms in Chinese historical documents) or " Gauri" ( 가우리 , 'Center'). With expanding British and American trade following the opening of Korea in the late 19th century, the spelling "Korea" appeared and gradually grew in popularity. The name Korea

756-597: A coup and defeated General Ch'oe Yŏng . Yi Seong-gye named his new dynasty Joseon and moved the capital from Kaesong to Hanseong (formerly Hanyang; modern-day Seoul ) and built the Gyeongbokgung palace. In 1394, he adopted Confucianism as the country's official ideology, resulting in much loss of power and wealth by the Buddhists . The prevailing philosophy of the Joseon dynasty was Neo-Confucianism , which

864-651: A later homonym of a validly published name is a nomen illegitimum or nom. illeg. ; for a full list refer to the International Code of Nomenclature for algae, fungi, and plants and the work cited above by Hawksworth, 2010. In place of the "valid taxon" in zoology, the nearest equivalent in botany is " correct name " or "current name" which can, again, differ or change with alternative taxonomic treatments or new information that results in previously accepted genera being combined or split. Prokaryote and virus codes of nomenclature also exist which serve as

972-628: A long time and redescribed as new by a range of subsequent workers, or if a range of genera previously considered separate taxa have subsequently been consolidated into one. For example, the World Register of Marine Species presently lists 8 genus-level synonyms for the sperm whale genus Physeter Linnaeus, 1758, and 13 for the bivalve genus Pecten O.F. Müller, 1776. Within the same kingdom, one generic name can apply to one genus only. However, many names have been assigned (usually unintentionally) to two or more different genera. For example,

1080-465: A new renaissance of the Joseon dynasty during the 18th century. In the 19th century, the royal in-law families gained control of the government, leading to mass corruption and weakening of the state, with severe poverty and peasant rebellions spreading throughout the country. Furthermore, the Joseon government adopted a strict isolationist policy, earning the nickname "the hermit kingdom ", but ultimately failed to protect itself against imperialism and

1188-409: A reference for designating currently accepted genus names as opposed to others which may be either reduced to synonymy, or, in the case of prokaryotes, relegated to a status of "names without standing in prokaryotic nomenclature". An available (zoological) or validly published (botanical) name that has been historically applied to a genus but is not regarded as the accepted (current/valid) name for

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1296-618: A result. The Korean Peninsula remained divided, the Korean Demilitarized Zone being the de facto border between the two states. In June 1950 North Korea invaded the South, using Soviet tanks and weaponry. During the Korean War (1950–53) more than 1.2 million people died and the three years of fighting throughout the nation effectively destroyed most cities. The war ended with an armistice agreement at approximately

1404-427: A taxon; however, the names published in suppressed works are made unavailable via the relevant Opinion dealing with the work in question. In botany, similar concepts exist but with different labels. The botanical equivalent of zoology's "available name" is a validly published name . An invalidly published name is a nomen invalidum or nom. inval. ; a rejected name is a nomen rejiciendum or nom. rej. ;

1512-455: A total of c. 520,000 published names (including synonyms) as at end 2019, increasing at some 2,500 published generic names per year. "Official" registers of taxon names at all ranks, including genera, exist for a few groups only such as viruses and prokaryotes, while for others there are compendia with no "official" standing such as Index Fungorum for fungi, Index Nominum Algarum and AlgaeBase for algae, Index Nominum Genericorum and

1620-457: A unification of the two successor nations of Goguryeo . Goryeo was founded in 918 and replaced Silla as the ruling dynasty of Korea. Goryeo's land was at first what is now South Korea and about 1/3 of North Korea, but later on managed to recover most of the Korean peninsula. Momentarily, Goryeo advanced to parts of Jiandao while conquering the Jurchens , but returned the territories due to

1728-560: Is commonly called the Three Kingdoms Period , following the fall of Gojoseon but before Goguryeo , Baekje , and Silla fully developed into kingdoms. This time period saw numerous states spring up from the former territories of Gojoseon, which encompassed northern Korea and southern Manchuria . With the fall of Gojoseon, southern Korea entered the Samhan period. Located in the southern part of Korea, Samhan referred to

1836-612: Is discouraged by both the International Code of Zoological Nomenclature and the International Code of Nomenclature for algae, fungi, and plants , there are some five thousand such names in use in more than one kingdom. For instance, A list of generic homonyms (with their authorities), including both available (validly published) and selected unavailable names, has been compiled by the Interim Register of Marine and Nonmarine Genera (IRMNG). The type genus forms

1944-796: Is located somewhere in Southern Siberia / Manchuria, such as the Liao river area or the Amur region. Proto-Koreans arrived in the southern part of the Korean Peninsula at around 300 BC, replacing and assimilating Japonic-speakers and likely causing the Yayoi migration. According to Korean legend, Dangun , a descendant of Heaven , established Gojoseon in 2333 BCE. In 108 BCE, the Han dynasty defeated Gojoseon and installed four commanderies in

2052-471: Is now believed to have been the last kingdom to develop. By the 2nd century, Silla existed as a large state in the southeast, occupying and influencing its neighbouring city-states. In 562, Silla annexed the Gaya confederacy , which was located between Baekje and Silla. The Three Kingdoms of Korea often warred with each other and Silla was often dominated by Baekje and Goguryeo. Silla was the smallest and weakest of

2160-649: Is now commonly used in English contexts by both North and South Korea. In South Korea, Korea as a whole is referred to as Hanguk ( 한국 ; lit.  country of the Han , [haːnɡuk] ). The name references Samhan , referring to the Three Kingdoms of Korea , not the ancient confederacies in the southern Korean Peninsula. Although written in Hanja as 韓 , 幹 , or 刊 , this Han has no relation to

2268-488: Is often found alongside ostrich , cinnamon , and sensitive ferns . Osmunda × ruggii , is a hybrid between C. claytoniana and O. spectabilis (American royal fern). The hybrid is considered important because it suggests a closer genetic relationship between C. claytoniana and O. spectabilis than between C. claytoniana and O. cinnamomeum (a fact which has led to moving O. cinnamomeum out of Osmunda and into its own genus Osmundastrum ). Osmunda × ruggii

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2376-542: Is referred to as Joseon ( 조선 ; lit.  [land of the] Morning Calm, [tɕosʰʌn] ). Joseon is the modern Korean pronunciation of the Hanja 朝鮮 , which is also the basis of the word for Korea as a whole in Japan ( 朝鮮 , Chōsen ), China ( 朝鮮 ; Cháoxiǎn ), and Vietnam ( Triều Tiên ). "Great Joseon " was the name of the kingdom ruled by the Joseon dynasty from 1392 until their declaration of

2484-460: Is somewhat arbitrary. Although all species within a genus are supposed to be "similar", there are no objective criteria for grouping species into genera. There is much debate among zoologists about whether enormous, species-rich genera should be maintained, as it is extremely difficult to come up with identification keys or even character sets that distinguish all species. Hence, many taxonomists argue in favor of breaking down large genera. For instance,

2592-520: Is sterile and is known from only about two natural populations, despite the many areas in which both C. claytoniana and O. spectabilis are found. The Iroquois used the plant as treatment for blood disorders and venereal diseases. Genus The composition of a genus is determined by taxonomists . The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including

2700-474: Is the type species , and the generic name is permanently associated with the type specimen of its type species. Should the specimen turn out to be assignable to another genus, the generic name linked to it becomes a junior synonym and the remaining taxa in the former genus need to be reassessed. In zoological usage, taxonomic names, including those of genera, are classified as "available" or "unavailable". Available names are those published in accordance with

2808-400: Is the country with the highest number of military personnel , with a total of 7.8 million active , reserve , and paramilitary personnel, or approximately 30% of its population. Its active duty army of 1.3 million soldiers is the fourth-largest in the world, consisting of 4.9% of its population. North Korea is widely considered to have the worst human rights record in the world. "Korea"

2916-588: Is the modern spelling of "Corea", a name attested in English as early as 1614. "Corea" is derived from the name of the ancient kingdom of Goryeo . Korea was transliterated as Cauli in The Travels of Marco Polo , of the Chinese 高麗 ( MC : Kawlej , mod. Gāolì ). This was the Hanja for the Korean kingdom of Goryeo ( Korean :  고려 ; MR :  Koryŏ ), which ruled most of

3024-746: The Gapsin Coup , Donghak Peasant Revolution , and the assassination of Empress Myeongseong . In 1895, Japan defeated China in the First Sino-Japanese War and China lost suzerainty over Korea and Korea was placed under further Japanese influence. In 1897, the centuries old Joseon was replaced by the Korean Empire with the Joseon's last king, Gojong , becoming the Emperor of the Korean Empire. Japan's further victory in

3132-828: The Great Lakes region ; eastern Canada – in southern Manitoba , Ontario , Quebec (north to tree line ); and east to Newfoundland ; eastern United States – upper New England south through the Appalachian Mountains and Atlantic seaboard, into the Southeastern United States in Georgia and Alabama ; and west across the Southern United States to Mississippi River , and back up the Mississippi embayment through

3240-621: The International Code of Zoological Nomenclature ; the earliest such name for any taxon (for example, a genus) should then be selected as the " valid " (i.e., current or accepted) name for the taxon in question. Consequently, there will be more available names than valid names at any point in time; which names are currently in use depending on the judgement of taxonomists in either combining taxa described under multiple names, or splitting taxa which may bring available names previously treated as synonyms back into use. "Unavailable" names in zoology comprise names that either were not published according to

3348-824: The International Plant Names Index for plants in general, and ferns through angiosperms, respectively, and Nomenclator Zoologicus and the Index to Organism Names for zoological names. Totals for both "all names" and estimates for "accepted names" as held in the Interim Register of Marine and Nonmarine Genera (IRMNG) are broken down further in the publication by Rees et al., 2020 cited above. The accepted names estimates are as follows, broken down by kingdom: The cited ranges of uncertainty arise because IRMNG lists "uncertain" names (not researched therein) in addition to known "accepted" names;

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3456-580: The Khitans and the Mongols . Goryeo had a hostile relationship with the Khitans, because the Khitan Empire had destroyed Balhae , also a successor state of Goguryeo. In 993, the Khitans, who had established the Liao dynasty in 907, invaded Goryeo , demanding that it make amity with them. Goryeo sent the diplomat Sŏ Hŭi to negotiate, who successfully persuaded the Khitans to let Goryeo expand to

3564-577: The Korean Peninsula . Toyotomi Hideyoshi intended to conquer China and India through the Korean Peninsula, but was defeated by strong resistance from the Righteous Army , the naval superiority of Admiral Yi Sun-sin and his turtle ships , and assistance from Wanli Emperor of Ming China . However, Joseon experienced great destruction, including a tremendous loss of cultural sites such as temples and palaces to Japanese pillaging, and

3672-512: The Korean alphabet was created and Confucianism became influential. This ended with Japanese and Qing invasions , which brought devastation to Joseon and led to Korean isolationism. After the invasions, an isolated Joseon experienced another nearly 200-year period of peace and prosperity, along with cultural and technological development. In the final years of the 19th century, Japan forced Joseon to open up and Joseon experienced turmoil such as

3780-703: The Midwestern United States to the Great Lakes. In eastern Asia, the fern is found in the subtropical and temperate Asia in: the Eastern Himalaya , South Central China and Eastern China , Taiwan , the Korean Peninsula , the Ryukyu Islands , and Japan . Claytosmunda claytoniana is found in humid zones, mostly in forests, but also in more open habitats and biomes , although rarely in bogs . The interrupted fern

3888-670: The Military Demarcation Line , but the two governments are officially still at war. In 2018, the leaders of North Korea and South Korea officially signed the Panmunjom Declaration , announcing that they will work to end the conflict. In November 2020, South Korea and China agreed to work together to mend South Korea's relationship with North Korea. During a meeting between President Moon and China's foreign minister, Wang Yi , Moon expressed his gratitude to China for its role in helping to foster peace in

3996-747: The Shandong Peninsula and the mouth of the Yangtze River . Later Silla was a prosperous and wealthy country, and its metropolitan capital of Gyeongju was the fourth largest city in the world. Later Silla experienced a golden age of art and culture, as evidenced by the Hwangnyongsa , Seokguram , and Emille Bell . Buddhism flourished during this time, and many Korean Buddhists gained great fame among Chinese Buddhists and contributed to Chinese Buddhism, including: Woncheuk , Wonhyo , Uisang , Musang , and Kim Gyo-gak ,

4104-576: The Yuan capital to swear allegiance to the Mongols; Kublai Khan accepted, and married one of his daughters to the Korean crown prince, and the dynastic line of Goryeo continued to survive under the overlordship of the Mongol Yuan dynasty as a semi-autonomous vassal state and compulsory ally. The two nations became intertwined for 80 years as all subsequent Korean kings married Mongol princesses, and

4212-705: The last empress of the Yuan dynasty was a Korean princess. In the 1350s, King Gongmin was free at last to reform the Goryeo government when the Yuan dynasty began to crumble. Gongmin had various problems that needed to be dealt with, which included the removal of pro-Mongol aristocrats and military officials, the question of land holding, and quelling the growing animosity between the Buddhists and Confucian scholars. During this tumultuous period, Goryeo momentarily conquered Liaoyang in 1356, repulsed two large invasions by

4320-404: The platypus belongs to the genus Ornithorhynchus although George Shaw named it Platypus in 1799 (these two names are thus synonyms ) . However, the name Platypus had already been given to a group of ambrosia beetles by Johann Friedrich Wilhelm Herbst in 1793. A name that means two different things is a homonym . Since beetles and platypuses are both members of the kingdom Animalia,

4428-648: The surrender of Japan , the United Nations developed plans for a trusteeship administration, the Soviet Union administering the peninsula north of the 38th parallel and the United States administering the south . The politics of the Cold War resulted in the 1948 establishment of two separate governments, North Korea and South Korea. The aftermath of World War II left Korea partitioned along

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4536-774: The 17th century, and had a small enclave in the Ryukyu Kingdom that engaged in trade with Siam and Java. During the 15th and 16th centuries, Joseon enjoyed many benevolent rulers who promoted education and science. Most notable among them was Sejong the Great (r. 1418–50), who personally created and promulgated Hangul , the Korean alphabet. This golden age saw great cultural and scientific advancements, including in printing, meteorological observation , astronomy, calendar science, ceramics , military technology, geography, cartography, medicine, and agricultural technology, some of which were unrivaled elsewhere. Joseon implemented

4644-522: The 1904–1905 Russo-Japanese War , expelled Russian influence in Korea and Manchuria. In 1905, the Korean Empire became a protectorate of the Empire of Japan . In 1910, the Empire of Japan officially annexed the Korean peninsula . Korea under Japanese rule was marked by industrialization and modernization, economic exploitation, and brutal suppression of the Korean independence movement , as reflected in

4752-526: The 1919 March First Movement . The Japanese suppressed Korean culture, and during World War II forcefully mobilized millions of Koreans to support its war effort. In 1945, Japan surrendered to the Allies , and the Soviet Union and United States agreed to divide Korea into two military occupation zones divided by the 38th parallel, with the Soviet zone in the north and American zone in the south. The division

4860-596: The 1960s, the South Korean economy has grown enormously and the economic structure was radically transformed. In 1957, South Korea had a lower per capita GDP than Ghana , and by 2008 it was 17 times as high as Ghana's. According to R. J. Rummel , forced labour , executions, and concentration camps were responsible for over one million deaths in North Korea from 1948 to 1987; others have estimated 400,000 deaths in concentration camps alone. Estimates based on

4968-403: The 38th parallel on 2 September 1945, with the north under Soviet occupation and the south under US occupation supported by other allied states. Consequently, North Korea, a Soviet-style socialist republic was established in the north, and South Korea, a Western-style regime, was established in the south . North Korea is a one-party state , now centred on Kim Il Sung 's Juche ideology, with

5076-508: The 4th century during the rule of Geunchogo when its influence extended across the sea to Liaoxi and Shandong in China, taking advantage of the weakened state of Former Qin , and Kyushu in the Japanese archipelago; however, Baekje was critically defeated by Gwanggaeto the Great and declined. Although later records claim that Silla was the oldest of the Three Kingdoms of Korea , it

5184-402: The Chinese place names or peoples who used those characters but was a phonetic transcription ( OC : * Gar , MC : Han or Gan ) of a native Korean word that seems to have had the meaning "big" or "great", particularly in reference to leaders. It has been tentatively linked with the title khan used by the nomads of Manchuria and Central Asia . In North Korea, Korea as a whole

5292-473: The French botanist Joseph Pitton de Tournefort (1656–1708) is considered "the founder of the modern concept of genera". The scientific name (or the scientific epithet) of a genus is also called the generic name ; in modern style guides and science, it is always capitalised. It plays a fundamental role in binomial nomenclature , the system of naming organisms , where it is combined with the scientific name of

5400-569: The Gorguryeo forces were decimated by the Tang at the Battle of Mount Jupil . Taizong was later defeated at the Battle of Ansi and withdrew his forces from Goguryeo. After the death of Tang Taizong, his son Emperor Tang Gaozong allied with the Korean kingdom of Silla and invaded Goguryeo again, but were forced to withdraw in 662. However, Yeon Gaesomun died of a natural cause in 666 and Goguryeo

5508-500: The Japanese brought back to Japan an estimated 100,000–200,000 noses cut from Korean victims. Less than 30 years after the Japanese invasions, the Manchus took advantage of Joseon's war-weakened state and invaded in 1627 and 1637, and then went on to conquer the destabilised Ming dynasty. After normalising relations with the new Qing dynasty , Joseon experienced a nearly 200-year period of peace. Kings Yeongjo and Jeongjo led

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5616-623: The Japanese military. In 1993, Japanese Chief Cabinet Secretary Yohei Kono acknowledged the terrible injustices faced by these euphemistically named " comfort women ". During the Japanese annexation, the Korean language was suppressed in an effort to eradicate Korean national identity. Koreans were forced to take Japanese surnames, known as Sōshi-kaimei . Traditional Korean culture suffered heavy losses, as numerous Korean cultural artefacts were destroyed or taken to Japan. To this day, valuable Korean artefacts can often be found in Japanese museums or among private collections. One investigation by

5724-457: The Korean Peninsula, Goguryeo had many military conflicts with various Chinese dynasties, most notably the Goguryeo–Sui War , in which Goguryeo defeated a huge force said to number over a million men. In 642, the powerful general Yeon Gaesomun led a coup and gained complete control over Goguryeo. In response, Emperor Tang Taizong of China led a campaign against Goguryeo , in which

5832-534: The Korean Peninsula, most of the Goguryeo territories to the north of the Korean Peninsula were ruled by Balhae . Former Goguryeo general or chief of Sumo Mohe Dae Jo-yeong led a group of Goguryeo and Mohe refugees to the Jilin and founded the kingdom of Balhae , 30 years after the collapse of Goguryeo, as the successor to Goguryeo. At its height, Balhae's territories extended from southern Manchuria down to

5940-456: The Korean Peninsula. There was significant emigration to the overseas territories of the Empire of Japan during the Japanese occupation period, including Korea . By the end of World War II, there were over 850,000 Japanese settlers in Korea. After World War II, most of these overseas Japanese repatriated to Japan. Migrants who remained squatted in informal settlements . In 1945, with

6048-452: The Korean peninsula during the 12th century. Korea's introduction to the West resulted from trade and contact with merchants from Arabic lands, with some records dating back as far as the 9th century. Goryeo's name was a continuation of Goguryeo (Koguryŏ) the northernmost of the Three Kingdoms of Korea , which was officially known as Goryeo beginning in the 5th century. The original name was

6156-537: The Later Three Kingdoms and the ruling class of Balhae after its fall. Goryeo, whose name developed into the modern exonym "Korea", was highly cultured and saw the invention of the first metal movable type . During the 13th century, Goryeo became a vassal state of the Mongol Empire . Goryeo overthrew Mongol rule before falling to a coup led by General Yi Seong-gye , who established the Joseon dynasty in 1392. The first 200 years of Joseon were marked by peace;

6264-566: The Red Turbans in 1359 and 1360, and defeated the final attempt by the Yuan to dominate Goryeo when General Ch'oe Yŏng defeated a Mongol tumen in 1364. During the 1380s, Goryeo turned its attention to the Wokou threat and used naval artillery created by Ch'oe Mu-sŏn to annihilate hundreds of pirate ships. In 1392, the general Yi Seong-gye overthrew the Goryeo dynasty after he staged

6372-414: The South Korean government identified 75,311 cultural assets that were taken from Korea, 34,369 in Japan and 17,803 in the United States. However, experts estimate that over 100,000 artefacts actually remain in Japan. Japanese officials considered returning Korean cultural properties, but to date this has not occurred. Both Koreas and Japan still dispute the ownership of the Dokdo islets, located east of

6480-414: The banks of the Amnok (Yalu) River , citing that in the past the land belonged to Goguryeo, the predecessor of Goryeo. During the Goryeo–Khitan War , the Khitan Empire invaded Korea twice more in 1009 and 1018 , but was defeated. After defeating the Khitan Empire, which was the most powerful empire of its time, Goryeo experienced a golden age that lasted a century, during which the Tripitaka Koreana

6588-442: The base for higher taxonomic ranks, such as the family name Canidae ("Canids") based on Canis . However, this does not typically ascend more than one or two levels: the order to which dogs and wolves belong is Carnivora ("Carnivores"). The numbers of either accepted, or all published genus names is not known precisely; Rees et al., 2020 estimate that approximately 310,000 accepted names (valid taxa) may exist, out of

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6696-448: The blade formed of alternate segments forming an arching blade tightening to a pointed end. The lower end is also slightly thinner than the rest of the frond because the first segments are shorter. Three to seven short, cinnamon-colored fertile segments are inserted in the middle of the length, giving the plant its name. In their absence, the plant in all its stages appears similar to Osmundastrum cinnamomeum (cinnamon fern). The base of

6804-526: The capital. During this period, laws were codified and a civil service system was introduced. Buddhism flourished and spread throughout the peninsula. The development of celadon industries flourished in the 12th and 13th centuries. The publication of the Tripitaka Koreana onto more than 80,000 wooden blocks and the invention of the world's first metal movable type in the 13th century attest to Goryeo's cultural achievements. Goryeo had to defend frequently against attacks by nomadic empires, especially

6912-419: The end of World War II in 1945, it has been politically divided at or near the 38th parallel ; in 1948, two states declared independence, both claiming sovereignty over the entire region: North Korea (Democratic People's Republic of Korea; DPRK) in its northern half and South Korea (Republic of Korea; ROK) in the south, which fought the Korean War from 1950 to 1953. The region is bordered by China to

7020-414: The fall of Goguryeo, a Goguryeo general by the name of Dae Joyeong founded the Korean-Mohe state of Balhae and successfully expelled the Tang presence from much of the former Goguryeo territories. The southwestern Korean kingdom of Baekje was founded around modern-day Seoul by a Goguryeo prince , a son of the founder of Goguryeo . Baekje absorbed all of the Mahan states and subjugated most of

7128-418: The fertile portions after they wither and eventually fall off. The plant is known from fossils to have grown in Europe , showing a previous circumboreal distribution. Fragmentary foliage resembling Claytosmunda has been found in the fossil record as far back as the Triassic . Claytosmunda claytoniana fronds are bipinnate , 40–100 cm (16–39 in) tall and 20–30 cm (8–12 in) broad,

7236-436: The fight for Korea following the conclusion of the Russo-Japanese War (1904–1905). Korea became a protectorate of Japan shortly afterwards. In Manchuria on 26 October 1909, An Jung-geun assassinated the former Resident-General of Korea , Itō Hirobumi , for his role in trying to force Korea into occupation. In 1910, an already militarily occupied Korea was a forced party to the Japan–Korea Annexation Treaty . The treaty

7344-420: The following year. Beginning in the 6th century, Silla 's power gradually extended across the Korean Peninsula. Silla first annexed the adjacent Gaya confederacy in 562. By the 640s, Silla formed an alliance with the Tang dynasty of China to conquer Baekje and later Goguryeo . After conquering Baekje and Goguryeo, Silla repulsed Tang China from the Korean peninsula in 676. Even though Silla unified most of

7452-446: The form "author, year" in zoology, and "standard abbreviated author name" in botany. Thus in the examples above, the genus Canis would be cited in full as " Canis Linnaeus, 1758" (zoological usage), while Hibiscus , also first established by Linnaeus but in 1753, is simply " Hibiscus L." (botanical usage). Each genus should have a designated type , although in practice there is a backlog of older names without one. In zoology, this

7560-625: The generic name (or its abbreviated form) still forms the leading portion of the scientific name, for example, Canis lupus lupus for the Eurasian wolf subspecies, or as a botanical example, Hibiscus arnottianus ssp. immaculatus . Also, as visible in the above examples, the Latinised portions of the scientific names of genera and their included species (and infraspecies, where applicable) are, by convention, written in italics . The scientific names of virus species are descriptive, not binomial in form, and may or may not incorporate an indication of their containing genus; for example,

7668-442: The harsh climate and difficulties in defending them. The name "Goryeo" (高麗) is a short form of " Goguryeo " (高句麗) and was first used during the time of King Jangsu . Goryeo regarded itself as the successor of Goguryeo, hence its name and efforts to recover the former territories of Goguryeo. Wang Geon , the founder of Goryeo, was of Goguryeo descent and traced his ancestry to a noble Goguryeo clan. He made Kaesong , his hometown,

7776-432: The idea that a newly defined genus should fulfill these three criteria to be descriptively useful: Moreover, genera should be composed of phylogenetic units of the same kind as other (analogous) genera. The term "genus" comes from Latin genus , a noun form cognate with gignere ('to bear; to give birth to'). The Swedish taxonomist Carl Linnaeus popularized its use in his 1753 Species Plantarum , but

7884-633: The largest component, with 23,236 ± 5,379 accepted genus names, of which 20,845 ± 4,494 are angiosperms (superclass Angiospermae). By comparison, the 2018 annual edition of the Catalogue of Life (estimated >90% complete, for extant species in the main) contains currently 175,363 "accepted" genus names for 1,744,204 living and 59,284 extinct species, also including genus names only (no species) for some groups. The number of species in genera varies considerably among taxonomic groups. For instance, among (non-avian) reptiles , which have about 1180 genera,

7992-691: The lizard genus Anolis has been suggested to be broken down into 8 or so different genera which would bring its ~400 species to smaller, more manageable subsets. Korean Peninsula Korea ( Korean : 한국 , romanized :  Hanguk in South Korea, or 조선 , Chosŏn in North Korea) is a peninsular region in East Asia consisting of the Korean Peninsula ( 한반도 , Hanbando in South Korea, or 조선반도 , Chosŏnbando in North Korea), Jeju Island , and smaller islands. Since

8100-403: The most (>300) have only 1 species, ~360 have between 2 and 4 species, 260 have 5–10 species, ~200 have 11–50 species, and only 27 genera have more than 50 species. However, some insect genera such as the bee genera Lasioglossum and Andrena have over 1000 species each. The largest flowering plant genus, Astragalus , contains over 3,000 species. Which species are assigned to a genus

8208-640: The most recent North Korean census suggest that 240,000 to 420,000 people died as a result of the 1990s famine and that there were 600,000 to 850,000 unnatural deaths in North Korea from 1993 to 2008. In South Korea, as guerrilla activities expanded, the South Korean government used strong measures against peasants, such as forcefully moving their families from guerrilla areas. According to one estimate, these measures resulted in 36,000 people killed, 11,000 people wounded, and 432,000 people displaced. The Korean War broke out when Soviet-backed North Korea invaded South Korea, though neither side gained much territory as

8316-428: The name could not be used for both. Johann Friedrich Blumenbach published the replacement name Ornithorhynchus in 1800. However, a genus in one kingdom is allowed to bear a scientific name that is in use as a generic name (or the name of a taxon in another rank) in a kingdom that is governed by a different nomenclature code. Names with the same form but applying to different taxa are called "homonyms". Although this

8424-525: The north and Russia to the northeast, across the Amnok (Yalu) and Duman (Tumen) rivers, and is separated from Japan to the southeast by the Korea Strait . Known human habitation of the Korean peninsula dates to 40,000 BC. The kingdom of Gojoseon , which according to tradition was founded in 2333 BC, fell to the Han dynasty in 108 BC. It was followed by the Three Kingdoms period, in which Korea

8532-479: The north, parts of Inner Mongolia to the west, parts of Russia to the east, and the Seoul region to the south. Goguryeo experienced a golden age under Gwanggaeto the Great and his son Jangsu , who both subdued Baekje and Silla during their times, achieving a brief unification of the Three Kingdoms of Korea and becoming the most dominant power on the Korean Peninsula. In addition to contesting for control of

8640-538: The northern Korean peninsula. Balhae was called the "Prosperous Country in the East". Later Silla carried on the maritime prowess of Baekje , which acted like the Phoenicia of medieval East Asia , and during the 8th and 9th centuries dominated the seas of East Asia and the trade between China, Korea and Japan, most notably during the time of Jang Bogo ; in addition, Silla people made overseas communities in China on

8748-552: The northern Korean peninsula. Three of the commanderies fell or retreated westward within a few decades, but the Lelang Commandery remained as a center of cultural and economic exchange with successive Chinese dynasties for four centuries. By 313, Goguryeo annexed all of the Chinese commanderies. The Proto–Three Kingdoms period, sometimes called the Multiple States Period, is the earlier part of what

8856-541: The provisions of the ICZN Code, e.g., incorrect original or subsequent spellings, names published only in a thesis, and generic names published after 1930 with no type species indicated. According to "Glossary" section of the zoological Code, suppressed names (per published "Opinions" of the International Commission of Zoological Nomenclature) remain available but cannot be used as the valid name for

8964-462: The segments distinguishes the two species: where O. cinnamomeum has typical felt-like hairs , the few hairs present on C. claytoniana are extremely short, usually requiring a magnifying glass to see well. Like other species in the family Osmundaceae, it grows a very large rhizome , with persistent stipe bases from previous years. It forms small, dense colonies , spreading locally through its rhizome, and often forming fairy rings . The species

9072-474: The short-lived Great Korean Empire in 1897. King Taejo had named them for the earlier Gojoseon ( 고조선 ), who ruled northern Korea from its legendary prehistory until their conquest in 108 BCE by China's Han Empire . The Go- in Gojoseon is the Hanja word 古 and simply means "ancient" or "old"; it is a modern usage to distinguish the ancient Joseon from the later dynasty. It is unclear whether Joseon

9180-603: The southern half of the Korean Peninsula , maintaining the former Samhan territories, while Goguryeo controlled the northern half of the Korean Peninsula, Manchuria and the Liaodong Peninsula , uniting Buyeo , Okjeo , Dongye , and other states in the former Gojoseon territories. Goguryeo was a highly militaristic state, and a large empire in East Asia, reaching its zenith in the 5th century when its territories expanded to encompass most of Manchuria to

9288-469: The species in the genus Osmundastrum . The oldest known species of Claytosmunda is C. beardmorensis, from the Middle Triassic of Antarctica. Claytosmunda when considering fossils is paraphyletic , as some of the fossils are likely to be more closely related to modern Osmunda and Plenasium than they are to the modern C. claytoniana. After In eastern North America it occurs in:

9396-497: The specific name particular to the wolf. A botanical example would be Hibiscus arnottianus , a particular species of the genus Hibiscus native to Hawaii. The specific name is written in lower-case and may be followed by subspecies names in zoology or a variety of infraspecific names in botany . When the generic name is already known from context, it may be shortened to its initial letter, for example, C. lupus in place of Canis lupus . Where species are further subdivided,

9504-412: The standard format for a species name comprises the generic name, indicating the genus to which the species belongs, followed by the specific epithet, which (within that genus) is unique to the species. For example, the gray wolf 's scientific name is Canis lupus , with Canis ( Latin for 'dog') being the generic name shared by the wolf's close relatives and lupus (Latin for 'wolf') being

9612-403: The taxon is termed a synonym ; some authors also include unavailable names in lists of synonyms as well as available names, such as misspellings, names previously published without fulfilling all of the requirements of the relevant nomenclatural code, and rejected or suppressed names. A particular genus name may have zero to many synonyms, the latter case generally if the genus has been known for

9720-410: The three confederacies of Mahan , Jinhan , and Byeonhan . Mahan was the largest and consisted of 54 states. Byeonhan and Jinhan both consisted of twelve states, bringing a total of 78 states within the Samhan . These three confederacies eventually developed into Baekje , Silla , and Gaya . The Three Kingdoms of Korea consisted of Goguryeo , Silla , and Baekje . Silla and Baekje controlled

9828-551: The three, but it used cunning diplomatic means to make opportunistic pacts and alliances with the more powerful Korean kingdoms, and eventually Tang China, to its great advantage. In 660, King Muyeol ordered his armies to attack Baekje . General Kim Yu-shin , aided by Tang forces, conquered Baekje after defeating General Gyebaek at the Battle of Hwangsanbeol . In 661, Silla and Tang attacked Goguryeo but were repelled. King Munmu , son of Muyeol and nephew of General Kim Yu-shin, launched another campaign in 667 and Goguryeo fell in

9936-576: The values quoted are the mean of "accepted" names alone (all "uncertain" names treated as unaccepted) and "accepted + uncertain" names (all "uncertain" names treated as accepted), with the associated range of uncertainty indicating these two extremes. Within Animalia, the largest phylum is Arthropoda , with 151,697 ± 33,160 accepted genus names, of which 114,387 ± 27,654 are insects (class Insecta). Within Plantae, Tracheophyta (vascular plants) make up

10044-429: The virus species " Salmonid herpesvirus 1 ", " Salmonid herpesvirus 2 " and " Salmonid herpesvirus 3 " are all within the genus Salmonivirus ; however, the genus to which the species with the formal names " Everglades virus " and " Ross River virus " are assigned is Alphavirus . As with scientific names at other ranks, in all groups other than viruses, names of genera may be cited with their authorities, typically in

10152-540: The volcanic fossils may be from as early as 300,000 BCE. The best preserved Korean pottery goes back to the paleolithic times around 10,000 BCE and the Neolithic period begins around 6000 BCE. Beginning around 300 BC, the Japonic -speaking Yayoi people from the Korean Peninsula entered the Japanese islands and displaced or intermingled with the original Jōmon inhabitants. The linguistic homeland of Proto- Koreans

10260-490: The western Korean peninsula (including the modern provinces of Gyeonggi , Chungcheong , and Jeolla , as well as parts of Hwanghae and Gangwon ) to a centralised government; during the expansion of its territory, Baekje acquired Chinese culture and technology through maritime contacts with the Southern Dynasties . Baekje was a great maritime power; its nautical skill, which made it the Phoenicia of East Asia,

10368-541: The world's second-largest standing army by military and paramilitary personnel . South Korea has been renowned for its globally influential pop culture, particularly in music ( K-pop ) and cinema , a phenomenon referred to as the Korean Wave . North Korea follows Songun , a " military first " policy which prioritizes the Korean People's Army in state affairs and resources. It possesses nuclear weapons , and

10476-423: Was a transcription of a native Korean name ( OC * T[r]awser , MC Trjewsjen ) or a partial translation into Chinese of the Korean capital Asadal ( 아사달 ), whose meaning has been reconstructed as "Morning Land" or "Mountain". The Korean Academy claimed ancient hominid fossils originating from about 100,000 BCE in the lava at a stone city site in Korea. Fluorescent and high-magnetic analyses indicate

10584-506: Was assassinated by Japanese agents. In 1897, the Joseon dynasty proclaimed the Korean Empire (1897–1910). King Gojong became emperor. During this brief period, Korea had some success in modernising the military, economy, real property laws, education system, and various industries. Russia , Japan, France , and the United States all invested in the country and sought to influence it politically. The Russians were pushed out of

10692-446: Was completed, and there were great developments in printing and publishing, promoting learning and dispersing knowledge on philosophy, literature, religion, and science; by 1100, there were 12 universities that produced famous scholars and scientists. Goryeo was invaded by the Mongols in seven major campaigns from the 1230s until the 1270s, but was never conquered. Exhausted after decades of fighting, Goryeo sent its crown prince to

10800-421: Was created between the countries, approximating the original partition. This status contributes to the high tensions that divide the peninsula, and both states claim to be the sole legitimate government of Korea. South Korea is a regional power and a developed country , with its economy ranked as the world's fourteenth-largest by GDP (PPP) . Its armed forces are one of the world's strongest militaries, with

10908-588: Was divided into Goguryeo , Baekje , and Silla . In 668 AD, Silla conquered Baekje and Goguryeo with the aid of the Tang dynasty , forming Unified Silla ; Balhae succeeded Goguryeo in the north. In the late 9th century, Unified Silla collapsed into three states, beginning the Later Three Kingdoms period. In 918, Goguryeo was resurrected as Goryeo , which achieved what has been called a "true national unification" by Korean historians, as it unified both

11016-615: Was epitomised by the seonbi class, scholars who passed up positions of wealth and power to lead lives of study and integrity. Joseon was a nominal tributary state of China but exercised full sovereignty, and maintained the highest position among China's tributary states, which also included countries such as the Ryukyu Kingdom , Vietnam, Burma, Brunei, Laos, Thailand, and the Philippines, among others. In addition, Joseon received tribute from Jurchens and Japanese until

11124-528: Was first described by Carl Linnaeus in 1753, as Osmunda claytoniana . In 2005, it was recognized as being somewhat different from other species in the genus by being placed in a separate subgenus, Osmunda subgenus Claytosmunda . In 2016, the subgenus was raised to a new genus, Claytosmunda , as part of the Pteridophyte Phylogeny Group classification (PPG I). The change of genus is recognized in some taxonomic databases. Others place

11232-578: Was forced to open its borders, beginning an era leading into Japanese imperial rule . Beginning in 1871, Japan began to exert more influence in Korea, forcing it out of China's traditional sphere of influence. As a result of the First Sino-Japanese War (1894–95), the Qing dynasty had to give up such a position according to Article 1 of the Treaty of Shimonoseki , which was concluded between China and Japan in 1895. That same year, Empress Myeongseong of Korea

11340-433: Was instrumental in the dissemination of Buddhism throughout East Asia and continental culture to Japan. Historic evidence suggests that Japanese culture, art, and language were influenced by the kingdom of Baekje and Korea itself; Baekje also played an important role in transmitting advanced Chinese culture to the Japanese archipelago. Baekje was once a great military power on the Korean Peninsula, most notably in

11448-451: Was meant to be temporary, with plans for Korea to be reunited under a single government. In 1948, the DPRK and ROK were established with the backing of each power, and ongoing tensions led to the outbreak of the Korean War in 1950, which came to involve U.S.-led United Nations and communist Chinese forces. The war ended in stalemate in 1953, but without a peace treaty. A demilitarized zone

11556-948: Was signed by Lee Wan-Yong , who was given the General Power of Attorney by the Emperor. However, the Emperor is said to have not actually ratified the treaty according to Yi Tae-jin. There is a long dispute whether this treaty was legal or illegal due to its signing under duress, threat of force and bribes. Korean resistance to the brutal Japanese occupation was manifested in the nonviolent March First Movement of 1919, during which 7,000 demonstrators were killed by Japanese police and military. The Korean liberation movement also spread to neighbouring Manchuria and Siberia . Over five million Koreans were conscripted for labour beginning in 1939, and tens of thousands of men were forced into Japan's military. Nearly 400,000 Korean labourers died. Approximately 200,000 girls and women, mostly from China and Korea, were forced into sexual slavery for

11664-507: Was thrown into chaos and weakened by a succession struggle among his sons and younger brother, with his eldest son defecting to Tang and his younger brother defecting to Silla. The Tang-Silla alliance conquered Goguryeo in 668. After the collapse of Goguryeo, Tang and Silla ended their alliance and fought over control of the Korean Peninsula. Silla succeeded in gaining control over most of the Korean Peninsula, while Tang gained control over Goguryeo's northern territories. However, 30 years after

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