Tonomi Palisade
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Tonomi Palisade
was an early Heian period ''jōsaku''-style Japanese castle located in what is now the town of Kanegasaki, Iwate, Kanegasaki in Isawa District, Iwate, Isawa District, Iwate Prefecture in far northern Honshū, Japan. The site was proclaimed a List of Historic Sites of Japan (Iwate), National Historic Site of Japan in October 2013. Background In the late Nara period, after the establishment of a centralized government under the ''Ritsuryō'' system, the Yamato dynasty, Yamato court sent a number of military expeditions to what is now the Tōhoku region of northern Japan to bring the local Emishi tribes under its control. Some Emishi tribes sided with the Yamato forces, and these allied tribes were known as . By the early 11th century, the Abe clan, who had grown enormously wealthy by monopolizing the gold, iron and horse trade in northern Honshū, had emerged as the ruler of these ''fushū'', and were assigned the six Emishi districts (Iwate, Hienuki, Shiwa, Isawa, Esashi and Waga) ...
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Kanegasaki, Iwate
is a Towns of Japan, town located in Iwate Prefecture, Japan. , the town had an estimated population of 15,580, and a population density of 87 persons per km² in 6,155 households. The total area of the town is . In June 2001, the 34.8 hectare old centre of town was protected as an Groups of Traditional Buildings, Important Preservation District by the national government for its traditional samurai residences. Geography Kanegasaki is located in the Tōhoku region of northern Japan at the confluence of the Kitakami River, Kitakami and Isawa River, Isawa rivers and is bordered to the north by Kitakami, Iwate, Kitakami-shi, to the east and south by Ōshū, Iwate, Ōshū-shi. In the mountains to the west, there is a large reservoir known as Sengaishi that is dammed and used for irrigating the rice paddies in the plain below. Kanegasaki is characterized by a variety of geographical features, including mountains and wide expanses of rice paddies to the west and a small merchant dis ...
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Abe Clan
The was one of the oldest of the major Japanese clans (''uji''); and the clan retained its prominence during the Sengoku period and the Edo period.Meyer, Eva-Maria"Gouverneure von Kyôto in der Edo-Zeit." Universität Tübingen (in German). The clan's origin is said to be one of the original clans of the Yamato people; they truly gained prominence during the Heian period (794-1185), and experienced a resurgence in the 18th century. Although Abe is also a very common Japanese surname in modern times, not everyone with this name is descended from this clan. Origins and history According to the '' Nihon Shoki'', the Abe were descended from Prince Ōhiko, son of Emperor Kōgen. Asakawa, Kan'ichi. (1903). ''The Early Institutional Life of Japan,'' p.140. They originated in Iga province (today Mie prefecture); Though the clan name was originally written as 阿倍, it changed to 安倍 around the 8th century. Though this origin is not positive, it is likely. The northern region which ...
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Kanegasaki Station
is a railway station in the town of Kanegasaki, Iwate Prefecture, Japan, operated by East Japan Railway Company (JR East). Lines Kanegasaki Station is served by the Tōhoku Main Line, and is located 477.7 rail kilometers from the terminus of the line at Tokyo Station. Station layout The station is an elevated station and has two opposed side platforms. The station is staffed. Platforms History Kanegasaki Station was opened on 1 July 1897.JR East station information
The station was absorbed into the JR East network upon the of the

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Japan National Route 4
is a major national highway in eastern Honshū, Japan. Measuring it is the longest highway in the country. When oversea routes are included, it is the second longest highway in Japan, with National Route 58 then measuring because of its maritime sections. The highway connects Tokyo and Aomori via Utsunomiya, Kōriyama, Sendai, and Morioka. From Saitama Prefecture to Iwate Prefecture, it parallels the Tōhoku Expressway; from Morioka to Hachinohe, it parallels the Hachinohe Expressway. At its northern terminus it links with National Route 7. Route description Tokyo The southern terminus of National Route 4 lies at Nihonbashi, the kilometer zero of Japan in Chūō, Tokyo. The marker here signifies the terminus of national highways including National Route 1, National Route 6, National Route 14, National Route 15, National Route 17, and National Route 20. Of the mentioned highways, three travel concurrently with National Route 4 from Nihonbashi: National Routes 6, 14 ...
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Palisade
A palisade, sometimes called a stakewall or a paling, is typically a fence or defensive wall made from iron or wooden stakes, or tree trunks, and used as a defensive structure or enclosure. Palisades can form a stockade. Etymology ''Palisade'' derives from ''pale'', from the Latin word ', meaning stake, specifically when used side by side to create a wood defensive wall. Typical construction Typical construction consisted of small or mid-sized tree trunks aligned vertically, with as little free space in between as possible. The trunks were sharpened or pointed at the top, and were driven into the ground and sometimes reinforced with additional construction. The height of a palisade ranged from around a metre to as high as 3–4 m. As a defensive structure, palisades were often used in conjunction with earthworks. Palisades were an excellent option for small forts or other hastily constructed fortifications. Since they were made of wood, they could often be quickly and easil ...
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Rampart (fortification)
In fortification architecture, a bank or rampart is a length of embankment or wall forming part of the defensive boundary of a castle, hillfort, settlement or other fortified site. It is usually broad-topped and made of excavated earth and/or masonry.Darvill, Timothy (2008). ''Oxford Concise Dictionary of Archaeology'', 2nd ed., Oxford University Press, Oxford and New York, p. 376. . Early fortifications Many types of early fortification, from prehistory through to the Early Middle Ages, employed earth ramparts usually in combination with external ditches to defend the outer perimeter of a fortified site or settlement. Hillforts, ringforts or "raths" and ringworks all made use of ditch and rampart defences, and they are the characteristic feature of circular ramparts. The ramparts could be reinforced and raised in height by the use of palisades. This type of arrangement was a feature of the motte and bailey castle of northern Europe in the early medieval period. Types of ram ...
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Isawa River
The is a river in Iwate Prefecture, Japan. For about half its length it marks the border between Kanegasaki Town and Ōshū City. The river's origin is in the Ōu Mountains just west of Mt. Yakeishi (1548 meters). At its highest point it is called the and flows south until it crosses National Route 397. There it turns west and follows 397 until it is stopped by the Ishibuchi Dam. In 2013 a new dam was scheduled to be completed a little downstream called the Isawa Dam. When this dam is completed the Ishibuchi Dam and reservoir will be completely flooded. Many local residents are opposed to the construction of such a large dam as the water is being impounded to provide drinking and irrigation water for use in other places. Another fear is that the great weight of the water will trigger an earthquake destroying the dam and causing a major flood. One worker on the new dam was killed by a rockslide in the 2008 Iwate–Miyagi Nairiku earthquake. The Isawa River continues its cour ...
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Kitakami River
The is the fourth largest river in Japan and the largest in the Tōhoku region. It is long and drains an area of . page 793 It flows through mostly rural areas of Iwate and Miyagi Prefectures. The source of the river is the Mount Nanashiruge in northern Iwate, from which it flows to the south between the Kitakami Mountains and the Ōu Mountains. The river is unusual in that it has two mouths, one flowing south into Ishinomaki Bay and the other flowing east into the Pacific Ocean, both in Ishinomaki City. The Kitakami river was an important transportation route during the Edo period and before the building of railways in the early Meiji period. Numerous dams have been constructed on the river and its tributaries from the Taishō and Shōwa periods for hydroelectric power generation, flood control and irrigation. However, another unusual feature is that there are no dams from its mouth to the Shijūshida Dam north of Morioka. This allows for a spectacular salmon run every fal ...
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Kiyohara Clan
The was a powerful clan of the far north of Japan during the Heian period, descended from Prince Toneri, son of Emperor Tenmu (631–686). Kiyohara no Fusanori (9th century) had two sons: the elder was the ancestor of the samurai branch family of Dewa Province; the younger of the ''kuge'' (court nobles) branch of the clan. The position of Governor of Dewa province was passed down within the family; the Kiyohara are particularly known for their involvement in the Zenkunen and Gosannen Wars of the 11th century. The erupted in 1051, when Minamoto no Yoriyoshi and his son Yoshiie arrived in the north, from Kyoto, as agents of the Imperial court. They were there to put an end to a conflict between the Governor of Mutsu Province (which bordered the Kiyohara's Dewa) and the '' Chinjufu-shōgun'' (Defender of the North), Abe no Yoritoki. The Kiyohara Governor of Dewa contributed warriors to the Minamoto effort, and aided in their victory over the Abe clan, which was achieved in ...
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Abe No Munetō
was a samurai of the Abe clan during the Heian period of Japan. He was the son of Abe no Yoritoki, the head of the Abe clan of Emishi who were allowed to rule the six Emishi districts in the from Morioka to Hiraizumi in what is now Iwate Prefecture. Abe no Yoritoki was the Chinjufu-shōgun (general in charge of overseeing the Ainu and the defense of the north). In the Zenkunen War, he fought, together with his brother Sadato, alongside his father against the Minamoto. Abe no Munetō was based at the Isawa Stockade. He occupied the fort called the Tonomi Palisade (鳥海冊, ''tonomi-saku'') that was established on the north side of the Isawa at an uncertain date. In 1061, during the Zenkunen War, Abe no Munetō defeated the Minamoto forces in the Battle of Tonomi Palisade. Siblings *Abe no Sadato (1019–1062) who occupied the Kuriyagawa Stockade; *Abe no Masato who occupied the Kurosawa Stockade; *Abe no Norito who stayed at the Koromo Stockade with his father; * a sister w ...
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