National Diet Library
The National Diet Library is the national library of Japan and among the largest libraries in the world. It was established in 1948 for the purpose of assisting members of the National Diet of Japan in researching matters of public policy; the library is similar in scope to the United States Library of Congress. The National Diet Library consists of two main facilities in Tōkyō and Kyōtō, several other branch libraries throughout Japan; the National Diet Library is the successor of three separate libraries: the library of the House of Peers, the library of the House of Representatives, both of which were established at the creation of Japan's Imperial Diet in 1890. The Diet's power in prewar Japan was limited, its need for information was "correspondingly small"; the original Diet libraries "never developed either the collections or the services which might have made them vital adjuncts of genuinely responsible legislative activity". Until Japan's defeat, the executive had controlled all political documents, depriving the people and the Diet of access to vital information.
The U. S. occupation forces under General Douglas MacArthur deemed reform of the Diet library system to be an important part of the democratization of Japan after its defeat in World War II. In 1946, each house of the Diet formed its own National Diet Library Standing Committee. Hani Gorō, a Marxist historian, imprisoned during the war for thought crimes and had been elected to the House of Councillors after the war, spearheaded the reform efforts. Hani envisioned the new body as "both a'citadel of popular sovereignty'", the means of realizing a "peaceful revolution"; the Occupation officers responsible for overseeing library reforms reported that, although the Occupation was a catalyst for change, local initiative pre-existed the Occupation, the successful reforms were due to dedicated Japanese like Hani. The National Diet Library opened in June 1948 in the present-day State Guest-House with an initial collection of 100,000 volumes; the first Librarian of the Diet Library was the politician Tokujirō Kanamori.
The philosopher Masakazu Nakai served as the first Vice Librarian. In 1949, the NDL became the only national library in Japan. At this time the collection gained an additional million volumes housed in the former National Library in Ueno. In 1961, the NDL opened at its present location in Nagatachō, adjacent to the National Diet. In 1986, the NDL's Annex was completed to accommodate a combined total of 12 million books and periodicals; the Kansai-kan, which opened in October 2002 in the Kansai Science City, has a collection of 6 million items. In May 2002, the NDL opened a new branch, the International Library of Children's Literature, in the former building of the Imperial Library in Ueno; this branch contains some 400,000 items of children's literature from around the world. Though the NDL's original mandate was to be a research library for the National Diet, the general public is the largest consumer of the library's services. In the fiscal year ending March 2004, for example, the library reported more than 250,000 reference inquiries.
As Japan's national library, the NDL collects copies of all publications published in Japan. Moreover, because the NDL serves as a research library for Diet members, their staffs, the general public, it maintains an extensive collection of materials published in foreign languages on a wide range of topics; the NDL has eight major specialized collections: Modern Political and Constitutional History. The Modern Political and Constitutional History Collection comprises some 300,000 items related to Japan's political and legal modernization in the 19th century, including the original document archives of important Japanese statesmen from the latter half of the 19th century and the early 20th century like Itō Hirobumi, Iwakura Tomomi, Sanjō Sanetomi, Mutsu Munemitsu, Terauchi Masatake, other influential figures from the Meiji and Taishō periods; the NDL has an extensive microform collection of some 30 million pages of documents relating to the Occupation of Japan after World War II. This collection include the documents prepared by General Headquarters and the Supreme Commander of the Allied Powers, the Far Eastern Commission, the United States Strategic Bombing Survey Team.
The Laws and Preliminary Records Collection consists of some 170,000 Japanese and 200,000 foreign-language documents concerning proceedings of the National Diet and the legislatures of some 70 foreign countries, the official gazettes, judicial opinions, international treaties pertaining to some 150 foreign countries. The NDL maintains a collection of some 530,000 books and booklets and 2 million microform titles relating to the sciences; these materials include, among other things, foreign doctoral dissertations in the sciences, the proceedings and reports of academic societies, catalogues of technical standards, etc. The NDL has a collection of 440,000 maps of Japan and other countries, including the topographica
Papier-mâché is a composite material consisting of paper pieces or pulp, sometimes reinforced with textiles, bound with an adhesive, such as glue, starch, or wallpaper paste. Two main methods are used to prepare papier-mâché; the first method makes use of paper strips glued together with adhesive, the other uses paper pulp obtained by soaking or boiling paper to which glue is added. With the first method, a form for support is needed on. With the second method, it is possible to shape the pulp directly inside the desired form. In both methods, reinforcements with wire, chicken wire, lightweight shapes, balloons or textiles may be needed; the traditional method of making papier-mâché adhesive is to use a mixture of water and flour or other starch, mixed to the consistency of heavy cream. Other adhesives can be used if thinned such as polyvinyl acetate-based glues. Adding oil of cloves or other additives such as salt to the mixture reduces the chances of the product developing mold. For the paper strips method, the paper is cut or torn into strips, soaked in the paste until saturated.
The saturated pieces are placed onto the surface and allowed to dry slowly. The strips may be placed on an armature, or skeleton of wire mesh over a structural frame, or they can be placed on an object to create a cast. Oil or grease can be used as a release agent. Once dried, the resulting material can be cut, sanded and/or painted, waterproofed by painting with a suitable water-repelling paint. Before painting any product of papier-mâché, the glue must be dried, otherwise mold will form and the product will rot from the inside out. For the pulp method, the paper is left in water at least overnight to soak, or boiled in abundant water until the paper dissolves in a pulp; the excess water is drained, an adhesive is added and the papier-mâché applied to a form or for smaller or simpler objects, sculpted to shape. In ancient Egypt and death masks were made from cartonnage—layers of papyrus or linen covered with plaster. In Persia, papier-mâché has been used to manufacture trays, étagères and cases.
Japan and China produced laminated paper articles using papier-mâché. In Japan and India, papier-mâché was used to add decorative elements to armor and shields. In Kashmir as in Persia, papier-mâché has been used to manufacture small painted boxes, bowls lined with metals, trays, étagères and cases, it remains marketed in India and is a part of the luxury ornamental handicraft market. Starting around 1725 in Europe, gilded papier-mâché began to appear as a low-cost alternative to treated plaster or carved wood in architecture. Henry Clay of Birmingham, patented a process for treating laminated sheets of paper with linseed oil to produce waterproof panels in 1772; these sheets were used for building coach door panels as well as other structural uses. Theodore Jennens patented a process in 1847 for steaming and pressing these laminated sheets into various shapes, which were used to manufacture trays, chair backs, structural panels laid over a wood or metal armature for strength; the papier-mâché finished with a pearl shell finish.
The industry lasted through the 19th century. Russia had a thriving industry in ornamental papier-mâché. A large assortment of painted Russian papier-mâché items appear in a Tiffany & Co. catalog from 1893. Martin Travers the English ecclesiastical designer made much use of papier-mâché for his church furnishings in the 1930s. Papier-mâché has been used for doll heads starting as early as 1540, molded in two parts from a mixture of paper pulp and plaster, glued together, with the head smoothed and varnished. Cartonería or papier-mâché sculptures are a traditional handcraft in Mexico; the papier-mâché works are called "carton piedra" for the rigidness of the final product. These sculptures today are made for certain yearly celebrations for the Burning of Judas during Holy Week and various decorative items for Day of the Dead. However, they include piñatas, masks and more made for various other occasions. There is a significant market for collectors as well. Papier-mâché was introduced into Mexico during the colonial period to make items for church.
Since the craft has developed in central Mexico. In the 20th century, the creation of works by Mexico City artisans Pedro Linares and Carmen Caballo Sevilla were recognized as works of art with patrons such as Diego Rivera; the craft has become less popular with more recent generations, but various government and cultural institutions work to preserve it. One common item made in the 19th century in America was the paper canoe, most famously made by Waters & Sons of Troy, New York; the invention of the continuous sheet paper machine allows paper sheets to be made of any length, this made an ideal material for building a seamless boat hull. The paper of the time was stretchier than modern paper when damp, this was used to good effect in the manufacture of paper boats. A layer of thick, dampened paper tacked down at the edges. A layer of glue was added, allowed to dry, sanded down. Additional layers of paper and glue could be added to achieve the desired thickness, cloth could be added as well to provide additional strength and stiffness.
The final product was trimmed, reinforced with wooden strips at the keel and gunwales to provide stiffness, waterproofed. Paper racing sh
The Tōhoku region, Northeast region, or Northeast Japan consists of the northeastern portion of Honshu, the largest island of Japan. This traditional region consists of six prefectures: Akita, Fukushima, Iwate and Yamagata. Tōhoku retains a reputation as a scenic region with a harsh climate. In the 20th century, tourism became a major industry in the Tōhoku region. In mythological times, the area was known as Azuma and corresponded to the area of Honshu occupied by the native Ainu; the area was the Dewa and the Michinoku regions, a term first recorded in Hitachi-no-kuni Fudoki. There is some variation in modern usage of the term "Michinoku". Tōhoku's initial historical settlement occurred between the seventh and ninth centuries, well after Japanese civilization and culture had become established in central and southwestern Japan; the last stronghold of the indigenous Emishi on Honshu and the site of many battles, the region has maintained a degree of autonomy from Kyoto at various times throughout history.
The haiku poet Matsuo Bashō wrote Oku no Hosomichi during his travels through Tōhoku. The region is traditionally known as a less developed area of Japan; the catastrophic 9.0-Magnitude earthquake and tsunami on March 11, 2011, inflicted massive damage along the east coast of this region, killed 15,894 people and was the costliest natural disaster which left 500,000 people homeless along with radioactive fallout from the Fukushima Daiichi nuclear disaster. Masamune, feudal lord of Date clan, expanded trade in the Tōhoku region. Although faced with attacks by hostile clans, he managed to overcome them after a few defeats and ruled one of the largest fiefdoms of the Tokugawa shogunate, he worked on many projects to beautify the region. He is known to have encouraged foreigners to come to his land. Though he funded and promoted an envoy to establish relations with the Pope in Rome, he was motivated at least in part by a desire for foreign technology, similar to that of other lords, such as Oda Nobunaga.
Further, once Tokugawa Ieyasu outlawed Christianity, Masamune reversed his position, though disliking it, let Ieyasu persecute Christians in his domain. For 270 years, Tōhoku remained a place of tourism and prosperity. Matsushima, for instance, a series of tiny islands, was praised for its beauty and serenity by the wandering haiku poet Matsuo Bashō, he showed sympathy for Christian traders in Japan. In addition to allowing them to come and preach in his province, he released the prisoner and missionary Padre Sotelo from the hands of Tokugawa Ieyasu. Date Masamune allowed Sotelo as well as other missionaries to practice their religion and win converts in Tōhoku; the most used subdivision of the region is dividing it to "North Tōhoku" consisting of Aomori and Iwate Prefectures and "South Tōhoku" consisting of Yamagata and Fukushima Prefectures. The population collapse of Tōhoku, which began before the year 2000, has accelerated, now including dynamic Miyagi. Despite this, Sendai City has grown due to the disaster.
The population collapse of Aomori and Akita Prefectures, Honshu's 3 northernmost, began in the early 1980s after an initial loss of population in the late 1950s. Fukushima Prefecture, prior to 1980, had traditionally been the most populated, but today Miyagi is the most populated and urban by far. Tōhoku, like most of Japan, is mountainous, with the Ōu Mountains running north-south; the inland location of many of the region's lowlands has led to a concentration of much of the population there. Coupled with coastlines that do not favor seaport development, this settlement pattern resulted in a much greater than usual dependence on land and rail transportation. Low points in the central mountain range make communications between lowlands on either side of the range moderately easy. Tōhoku was traditionally considered the granary of Japan because it supplied Sendai and the Tokyo-Yokohama market with rice and other farming commodities. Tōhoku provided 20 percent of the nation's rice crop; the climate, however, is harsher than in other parts of Honshū due to the stronger effect of the Siberian High, permits only one crop a year on paddy fields.
In the 1960s, steel, chemical and petroleum refining industries began developing. Designated citiesSendai Core citiesIwaki Koriyama Akita Morioka Aomori Hachinohe Other citiesAizuwakamatsu Daisen Date Fukushima Goshogawara Hachimantai Hanamaki Higashimatsushima Higashine Hirakawa Hirosaki Ichinoseki Ishinomaki Iwanuma Kakuda Kamaishi Kaminoyama Katagami Kazuno Kesennuma Kitaakita Kitakami Kitakata Kuji Kurihara Kuroishi Minamisōma Misawa Miyako Motomiya Murayama Mutsu Nagai Nan'yō Natori Nihonmatsu Nikaho Ninohe Noshiro Obanazawa Oga Ōdate Ōfunato Ōsaki Ōshū Rikuzentakata Sagae Sakata Semboku Shinjō Shiogama Shirakawa Shiroishi Sōma Sukagawa Tagajō Takizawa Tamura Tendō Tome Tomiya Tōno Towada Tsugaru Tsuruoka Yamagata Yokote Yonezawa Yurihonjō Yuzawa Mount Bandai Three Mountains of Dewa Hakkōda Mountains Mount Hayachine Mount Iwaki Lake Tazawa Lake Towada Kitakami River Oirase River Valley the islands of Matsushima Bay Mount Osore Sanriku Coastline Bandai-Asahi National Park Miss Veedol Beach Rikuchu Kaigan National Park Towada-Hachimantai National Park 2011 Tōhoku earthquake and tsunami 2006 Kuril Islands earthquake Geography of Japan Tōhoku dialect List of regions in Japan Nussbaum, Louis-Frédéric and Käthe Roth..
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Japan is an island country in East Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asian continent and stretches from the Sea of Okhotsk in the north to the East China Sea and the Philippine Sea in the south; the kanji that make up Japan's name mean "sun origin", it is called the "Land of the Rising Sun". Japan is a stratovolcanic archipelago consisting of about 6,852 islands; the four largest are Honshu, Hokkaido and Shikoku, which make up about ninety-seven percent of Japan's land area and are referred to as home islands. The country is divided into 47 prefectures in eight regions, with Hokkaido being the northernmost prefecture and Okinawa being the southernmost one; the population of 127 million is the world's tenth largest. 90.7 % of people live in cities. About 13.8 million people live in the capital of Japan. The Greater Tokyo Area is the most populous metropolitan area in the world with over 38 million people. Archaeological research indicates; the first written mention of Japan is in Chinese history texts from the 1st century AD.
Influence from other regions China, followed by periods of isolation from Western Europe, has characterized Japan's history. From the 12th century until 1868, Japan was ruled by successive feudal military shōguns who ruled in the name of the Emperor. Japan entered into a long period of isolation in the early 17th century, ended in 1853 when a United States fleet pressured Japan to open to the West. After nearly two decades of internal conflict and insurrection, the Imperial Court regained its political power in 1868 through the help of several clans from Chōshū and Satsuma – and the Empire of Japan was established. In the late 19th and early 20th centuries, victories in the First Sino-Japanese War, the Russo-Japanese War and World War I allowed Japan to expand its empire during a period of increasing militarism; the Second Sino-Japanese War of 1937 expanded into part of World War II in 1941, which came to an end in 1945 following the Japanese surrender. Since adopting its revised constitution on May 3, 1947, during the occupation led by SCAP, the sovereign state of Japan has maintained a unitary parliamentary constitutional monarchy with an Emperor and an elected legislature called the National Diet.
Japan is a member of the ASEAN Plus mechanism, UN, the OECD, the G7, the G8, the G20, is considered a great power. Its economy is the world's third-largest by nominal GDP and the fourth-largest by purchasing power parity, it is the world's fourth-largest exporter and fourth-largest importer. Japan benefits from a skilled and educated workforce. Although it has renounced its right to declare war, Japan maintains a modern military with the world's eighth-largest military budget, used for self-defense and peacekeeping roles. Japan is a developed country with a high standard of living and Human Development Index, its population enjoys the highest life expectancy and third lowest infant mortality rate in the world, but is experiencing issues due to an aging population and low birthrate. Japan is renowned for its historical and extensive cinema, influential music industry, video gaming, rich cuisine and its major contributions to science and modern technology; the Japanese word for Japan is 日本, pronounced Nihon or Nippon and means "the origin of the sun".
The character nichi means "sun" or "day". The compound therefore means "origin of the sun" and is the source of the popular Western epithet "Land of the Rising Sun"; the earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, the Old Book of Tang. At the end of the seventh century, a delegation from Japan requested that Nihon be used as the name of their country; this name may have its origin in a letter sent in 607 and recorded in the official history of the Sui dynasty. Prince Shōtoku, the Regent of Japan, sent a mission to China with a letter in which he called himself "the Emperor of the Land where the Sun rises"; the message said: "Here, I, the emperor of the country where the sun rises, send a letter to the emperor of the country where the sun sets. How are you". Prior to the adoption of Nihon, other terms such as Yamato and Wakoku were used; the term Wa is a homophone of Wo 倭, used by the Chinese as a designation for the Japanese as early as the third century Three Kingdoms period.
Another form of Wa, Wei in Chinese) was used for an early state in Japan called Nakoku during the Han dynasty. However, the Japanese disliked some connotation of Wa 倭, it was therefore replaced with the substitute character Wa, meaning "togetherness, harmony"; the English word Japan derives from the historical Chinese pronunciation of 日本. The Old Mandarin or early Wu Chinese pronunciation of Japan was recorded by Marco Polo as Cipangu. In modern Shanghainese, a Wu dialect, the pronunciation of characters 日本; the old Malay word for Japan, Japun or Japang, was borrowed from a southern coastal Chinese dialect Fukienese or Ningpo – and this Malay word was encountered by Portuguese traders in Southeast Asia in the 16th century. These Early Portuguese traders brought the word
The Edo period or Tokugawa period is the period between 1603 and 1868 in the history of Japan, when Japanese society was under the rule of the Tokugawa shogunate and the country's 300 regional daimyō. The period was characterized by economic growth, strict social order, isolationist foreign policies, a stable population, "no more wars", popular enjoyment of arts and culture; the shogunate was established in Edo on March 24, 1603, by Tokugawa Ieyasu. The period came to an end with the Meiji Restoration on May 1868, after the fall of Edo. A revolution took place from the time of the Kamakura shogunate, which existed with the Tennō's court, to the Tokugawa, when the samurai became the unchallenged rulers in what historian Edwin O. Reischauer called a "centralized feudal" form of shogunate. Instrumental in the rise of the new-existing bakufu was Tokugawa Ieyasu, the main beneficiary of the achievements of Oda Nobunaga and Toyotomi Hideyoshi. Powerful, Ieyasu profited by his transfer to the rich Kantō area.
He maintained two million koku of land, a new headquarters at Edo, a strategically situated castle town, had an additional two million koku of land and thirty-eight vassals under his control. After Hideyoshi's death, Ieyasu moved to seize control from the Toyotomi clan. Ieyasu's victory over the western daimyō at the Battle of Sekigahara gave him control of all Japan, he abolished numerous enemy daimyō houses, reduced others, such as that of the Toyotomi, redistributed the spoils of war to his family and allies. Ieyasu still failed to achieve complete control of the western daimyō, but his assumption of the title of shōgun helped consolidate the alliance system. After further strengthening his power base, Ieyasu installed his son Hidetada as shōgun and himself as retired shōgun in 1605; the Toyotomi were still a significant threat, Ieyasu devoted the next decade to their eradication. In 1615, the Tokugawa army destroyed the Toyotomi stronghold at Osaka; the Tokugawa period brought 250 years of stability to Japan.
The political system evolved into what historians call bakuhan, a combination of the terms bakufu and han to describe the government and society of the period. In the bakuhan, the shōgun had national authority and the daimyō had regional authority; this represented a new unity in the feudal structure, which featured an large bureaucracy to administer the mixture of centralized and decentralized authorities. The Tokugawa became more powerful during their first century of rule: land redistribution gave them nearly seven million koku, control of the most important cities, a land assessment system reaping great revenues; the feudal hierarchy was completed by the various classes of daimyō. Closest to the Tokugawa house were the shinpan, or "related houses", they were twenty-three daimyō on the borders of Tokugawa lands. The shinpan held honorary titles and advisory posts in the bakufu; the second class of the hierarchy were the fudai, or "house daimyō", rewarded with lands close to the Tokugawa holdings for their faithful service.
By the 18th century, 145 fudai controlled the greatest assessed at 250,000 koku. Members of the fudai class staffed most of the major bakufu offices. Ninety-seven han formed the tozama, former opponents or new allies; the tozama were located on the peripheries of the archipelago and collectively controlled nearly ten million koku of productive land. Because the tozama were least trusted of the daimyō, they were the most cautiously managed and generously treated, although they were excluded from central government positions; the Tokugawa shogunate not only consolidated their control over a reunified Japan, they had unprecedented power over the emperor, the court, all daimyō and the religious orders. The emperor was held up as the ultimate source of political sanction for the shōgun, who ostensibly was the vassal of the imperial family; the Tokugawa helped the imperial family recapture its old glory by rebuilding its palaces and granting it new lands. To ensure a close tie between the imperial clan and the Tokugawa family, Ieyasu's granddaughter was made an imperial consort in 1619.
A code of laws was established to regulate the daimyō houses. The code encompassed private conduct, dress, types of weapons and numbers of troops allowed. Although the daimyō were not taxed per se, they were levied for contributions for military and logistical support and for such public works projects as castles, roads and palaces; the various regulations and levies not only strengthened the Tokugawa but depleted the wealth of the daimyō, thus weakening their threat to the central administration. The han, once military-centered domains, became mere local administrative units; the daimyō did have full administrative control over their territory and their complex systems of retainers and commoners. Loyalty was exacted from religious foundations greatly weakened by Nobunaga and Hideyoshi, through a variety of control mechanisms. Like Hideyoshi, Ieyasu encouraged foreign trade but was suspicious of outsiders, he wanted to make Edo a major port, but once he learned that the Europeans favored ports in Kyūshū and that China had rejected his plans for official trade, he moved to control existing trade
Hirosaki Domain known as Tsugaru Domain, was a tozama feudal domain of Edo period Japan It is located in Mutsu Province, in northern Honshū. The domain was centered at Hirosaki Castle, located in the center of what is now the city of Hirosaki in Aomori Prefecture, it was ruled by the Tsugaru clan. A branch of the family ruled the adjoining Kuroishi Domain; the Tsugaru clan the Ōura clan, was of uncertain origins. According to Tsugaru clan records, the clan was descendent from the noble Fujiwara clan and had an accent claim to ownership of the Tsugaru region of northern Honshu. In any event, the Ōura were hereditary vice-district magistrate under the Nanbu clan's local magistrate Ishikawa Takanobu, he captured castles at Ishikawa and Aburakawa, soon gathered support of many former Nanbu retainers in the region. After pledging fealty to Toyotomi Hideyoshi, he was confirmed as an independent warlord in 1590 and changed his name to "Tsugaru". Tamenobu assisted Hideyoshi at the Battle of Odawara, accompanied his retinue to Hizen during the Korean Expedition.
Afterwards, he sided with Tokugawa Ieyasu during the Battle of Sekigahara in 1600. After the Tokugawa victory at Sekigahara, the Tsugaru clan was granted an increase in territory, along with permission to keep its existing domain of Hirosaki. However, Tamenobu maintained close ties with the Toyotomi, his eldest son served as a page to Toyotomi Hideyori and perished at the Siege of Osaka, he married his second son and heir to a daughter of Ishida Mitsunari. He provided shelter to a son of Ishida Mitsunari, making him a Tsugaru retainer. Tamenobu was followed by his son, Tsugaru Nobuhira, baptized as a Kirishitan, his inheritance was challenged by faction which supported his nephew in the Tsugaru Disturbance of 1607. He was married to a daughter of Ishida Mitsunari, but set her aside and married a niece of Tokugawa Ieyasu to cement the clan's position vis-a-vis the Tokugawa shogunate. Nobuhira gave shelter to many Kirishitan persecuted in 1614, but recanted his faith, he completed Hirosaki Castle, developed the port of Aomori on Mutsu Bay.
Nobuhira was followed by his son, Tsugaru Nobuyoshi, whose period was marked by a series of major O-Ie Sōdō disturbances that shook the Tsugaru family: Kōsaka Kurando's Riot of 1612, the Funabashi Disturbance of 1634, the Shōhō Disturbance of 1647. Tsugaru Nobumasa was a scholar, embarked on ambitious public works projects aimed at increasing the revenues of the domain. By around 1700, the domain's actual kokudaka had risen to around 300,000 koku through these efforts, although its official rating was unchanged. However, in 1695, crop failure resulted in widespread starvation in the area. A tsunami killed 1,467 people from Kumaishi to Matsumae. On 27 August 1741,ore than 30 people were killed by a tsunami when a volcano on Oshima, northwest of the domain, collapsed, his son, Tsugaru Nobuhisa was a noted scholar, attempted to continue his father’s public works projects, but was plagued by repeated eruptions of Mount Iwaki. Ignoring sumptuary laws imposed by the shogunate, he lived in luxury while his subjects and retainers fell deeper into poverty.
He continued to rule behind-the-scenes during the time of his son, during which time the castle town of Hirosaki burned down. His grandson and great-grandson Nobuakira, inherited a domain in debt, beset by corrupt retainers, constant eruptions by Mount Iwaki, crop failures and famine; as Nobuakira died without heir, the domain was inherited by Tsugaru Yasuchika, from a hatamoto branch of the Tsugaru clan was founded in 1656 residing in Kuroishi. He promoted the branch house to daimyō status in 1809, He implemented many reforms which restored some stability to the domain, but orders from the Tokugawa shogunate to assist in policing the frontier region of Ezo, together with his efforts to secure a politically advantageous marriage for his son, placed a severe strain on the domain, led to widespread peasant revolts. In 1821, he survived an assassination attempt by Sōma Daisaku, a former samurai of the Nanbu clan, stemming from the old enmity between the two clans. Yasuchika continued to rule behind-the-scenes during the time of his son, noted for his mismanagement.
Nobuyuki was followed by Tsugaru Yukitsugu, born as the 5th son of Matsudaira Nobuakira, daimyō of Yoshida Domain in Mikawa Province. He was adopted in 1821 as the heir to Tsugaru Chikatari, the 8th Lord Kuroishi, 1st daimyō of Kuroishi Domain. On his adoptive father’s retirement, as Tsugaru Yukinori, he became the 2nd daimyō of Kuroishi Domain from 1825 to 1839. After the shougnate bakufu forced Nobuyuki into retirement for gross misrule, Yukinori was ordered to change his name to Tsugaru Yukisugu and to take his place as the 11th daimyō of Hirosaki, he attempted to continue implementation many of the reforms initiated by Nobuakira to restore prosperity to the disaster-prone domain, expanding on Nobuakira’s code of ethics
In biology, a population is all the organisms of the same group or species, which live in a particular geographical area, have the capability of interbreeding. The area of a sexual population is the area where inter-breeding is possible between any pair within the area, where the probability of interbreeding is greater than the probability of cross-breeding with individuals from other areas. In sociology, population refers to a collection of humans. Demography is a social science. Population in simpler terms is the number of people in a city or town, country or world. In population genetics a sex population is a set of organisms in which any pair of members can breed together; this means that they can exchange gametes to produce normally-fertile offspring, such a breeding group is known therefore as a Gamo deme. This implies that all members belong to the same species. If the Gamo deme is large, all gene alleles are uniformly distributed by the gametes within it, the Gamo deme is said to be panmictic.
Under this state, allele frequencies can be converted to genotype frequencies by expanding an appropriate quadratic equation, as shown by Sir Ronald Fisher in his establishment of quantitative genetics. This occurs in Nature: localization of gamete exchange – through dispersal limitations, preferential mating, cataclysm, or other cause – may lead to small actual Gamo demes which exchange gametes reasonably uniformly within themselves but are separated from their neighboring Gamo demes. However, there may be low frequencies of exchange with these neighbors; this may be viewed as the breaking up of a large sexual population into smaller overlapping sexual populations. This failure of panmixia leads to two important changes in overall population structure: the component Gamo demos vary in their allele frequencies when compared with each other and with the theoretical panmictic original; the overall rise in homozygosity is quantified by the inbreeding coefficient. Note that all homozygotes are increased in frequency – both the deleterious and the desirable.
The mean phenotype of the Gamo demes collection is lower than that of the panmictic original –, known as inbreeding depression. It is most important to note, that some dispersion lines will be superior to the panmictic original, while some will be about the same, some will be inferior; the probabilities of each can be estimated from those binomial equations. In plant and animal breeding, procedures have been developed which deliberately utilize the effects of dispersion, it can be shown that dispersion-assisted selection leads to the greatest genetic advance, is much more powerful than selection acting without attendant dispersion. This is so for both autogamous Gamo demes. In ecology, the population of a certain species in a certain area can be estimated using the Lincoln Index. According to the United States Census Bureau the world's population was about 7.55 billion in 2019 and that the 7 billion number was surpassed on 12 March 2012. According to a separate estimate by the United Nations, Earth’s population exceeded seven billion in October 2011, a milestone that offers unprecedented challenges and opportunities to all of humanity, according to UNFPA, the United Nations Population Fund.
According to papers published by the United States Census Bureau, the world population hit 6.5 billion on 24 February 2006. The United Nations Population Fund designated 12 October 1999 as the approximate day on which world population reached 6 billion; this was about 12 years after world population reached 5 billion in 1987, 6 years after world population reached 5.5 billion in 1993. The population of countries such as Nigeria, is not known to the nearest million, so there is a considerable margin of error in such estimates. Researcher Carl Haub calculated that a total of over 100 billion people have been born in the last 2000 years. Population growth increased as the Industrial Revolution gathered pace from 1700 onwards; the last 50 years have seen a yet more rapid increase in the rate of population growth due to medical advances and substantial increases in agricultural productivity beginning in the 1960s, made by the Green Revolution. In 2017 the United Nations Population Division projected that the world's population will reach about 9.8 billion in 2050 and 11.2 billion in 2100.
In the future, the world's population is expected to peak, after which it will decline due to economic reasons, health concerns, land exhaustion and environmental hazards. According to one report, it is likely that the world's population will stop growing before the end of the 21st century. Further, there is some likelihood that population will decline before 2100. Population has declined in the last decade or two in Eastern Europe, the Baltics and in the Commonwealth of Independent States; the population pattern of less-developed regions of the world in recent years has been marked by increasing birth rates. These followed an earlier sharp reduction in death rates; this transition from high birth and death rates to low birth