Mother Coin
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Mother Coin
Mother coins (), alternatively known as ''seed coins'' or ''matrix coins'', were coins used during the early stages of the casting process to produce Chinese, Japanese, Korean, Ryukyuan, and Vietnamese cash coins. As cash coins were produced using sand casting mother coins were first produced to form the basis for all subsequent cash coins to be released into circulation. Under the Han dynasty in China mints started producing cash coins using bronze master moulds to solve inconsistencies in circulating coins, this only worked partially and by the sixth century mother coins were introduced to solve these inconsistencies almost completely. The Japanese adopted the usage of mother coins in the 600s and they were used to manufacture cast Japanese coins until the Meiji period. The mother coin was initially prepared by engraving a pattern with the legend of the cash coin which had to be manufactured. In the manufacturing process mother coins were used to impress the design in moulds ...
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University Of California, Santa Barbara
The University of California, Santa Barbara (UC Santa Barbara or UCSB) is a public land-grant research university in Santa Barbara, California with 23,196 undergraduates and 2,983 graduate students enrolled in 2021–2022. It is part of the University of California 10-university system. Tracing its roots back to 1891 as an independent teachers' college, UCSB joined the University of California system in 1944, and is the third-oldest undergraduate campus in the system, after UC Berkeley and UCLA. Located on a WWII-era Marine air station, UC Santa Barbara is organized into three undergraduate colleges ( College of Letters and Science, College of Engineering, College of Creative Studies) and two graduate schools ( Gevirtz Graduate School of Education and Bren School of Environmental Science & Management), offering more than 200 degrees and programs. The university has 10 national research centers, including the Kavli Institute for Theoretical Physics and the Center for Control, ...
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Qing Dynasty
The Qing dynasty ( ), officially the Great Qing,, was a Manchu-led imperial dynasty of China and the last orthodox dynasty in Chinese history. It emerged from the Later Jin dynasty founded by the Jianzhou Jurchens, a Tungusic-speaking ethnic group who unified other Jurchen tribes to form a new "Manchu" ethnic identity. The dynasty was officially proclaimed in 1636 in Manchuria (modern-day Northeast China and Outer Manchuria). It seized control of Beijing in 1644, then later expanded its rule over the whole of China proper and Taiwan, and finally expanded into Inner Asia. The dynasty lasted until 1912 when it was overthrown in the Xinhai Revolution. In orthodox Chinese historiography, the Qing dynasty was preceded by the Ming dynasty and succeeded by the Republic of China. The multiethnic Qing dynasty lasted for almost three centuries and assembled the territorial base for modern China. It was the largest imperial dynasty in the history of China and in 1790 ...
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Manchu People
The Manchus (; ) are a Tungusic East Asian ethnic group native to Manchuria in Northeast Asia. They are an officially recognized ethnic minority in China and the people from whom Manchuria derives its name. The Later Jin (1616–1636) and Qing (1636–1912) dynasties of China were established and ruled by the Manchus, who are descended from the Jurchen people who earlier established the Jin dynasty (1115–1234) in northern China. Manchus form the largest branch of the Tungusic peoples and are distributed throughout China, forming the fourth largest ethnic group in the country. They can be found in 31 Chinese provincial regions. Among them, Liaoning has the largest population and Hebei, Heilongjiang, Jilin, Inner Mongolia and Beijing have over 100,000 Manchu residents. About half of the population live in Liaoning and one-fifth in Hebei. There are a number of Manchu autonomous counties in China, such as Xinbin, Xiuyan, Qinglong, Fengning, Yitong, Qingyuan, Weicha ...
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United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many List of islands of the United Kingdom, smaller islands within the British Isles. Northern Ireland shares Republic of Ireland–United Kingdom border, a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between ...
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Trafford
Trafford is a metropolitan borough of Greater Manchester, England, with an estimated population of 235,493 in 2017. It covers Retrieved on 13 December 2007. and includes the area of Old Trafford and the towns of Altrincham, Stretford, Urmston, Partington and Sale. The borough was formed in 1974 as a merger of six former districts and part of a seventh. The River Mersey flows through the borough, separating North Trafford from South Trafford, and the historic counties of Lancashire and Cheshire. Trafford is the fifth-most populous district in Greater Manchester. There is evidence of Neolithic, Bronze Age, and Roman activity in the area, two castles – one of them a Scheduled Ancient Monument – and over 200 listed buildings. In the late 19th century, the population rapidly expanded with the arrival of the railway. Trafford is the home of Altrincham Football Club, Trafford Football Club, Manchester United F.C. and Lancashire County Cricket Club and since 2 ...
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Ancestor Coin Of Qianlong Tongbao
An ancestor, also known as a forefather, fore-elder or a forebear, is a parent or (recursively) the parent of an antecedent (i.e., a grandparent, great-grandparent, great-great-grandparent and so forth). ''Ancestor'' is "any person from whom one is descended. In law, the person from whom an estate has been inherited." Two individuals have a genetic relationship if one is the ancestor of the other or if they share a common ancestor. In evolutionary theory, species which share an evolutionary ancestor are said to be of common descent. However, this concept of ancestry does not apply to some bacteria and other organisms capable of horizontal gene transfer. Some research suggests that the average person has twice as many female ancestors as male ancestors. This might have been due to the past prevalence of polygynous relations and female hypergamy. Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2''n'' ancestors in the ' ...
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Kaiyuan Tongbao
The Kaiyuan Tongbao (), sometimes romanised as ''Kai Yuan Tong Bao'' or using the archaic Wade-Giles spelling ''K'ai Yuan T'ung Pao'', was a Tang dynasty cash coin that was produced from 621 under the reign of Emperor Gaozu and remained in production for most of the Tang dynasty until 907. The Kaiyuan Tongbao was notably the first cash coin to use the inscription ''tōng bǎo'' (通寶) and an era title as opposed to have an inscription based on the weight of the coin as was the case with Ban Liang, Wu Zhu and many other earlier types of Chinese cash coins. The Kaiyuan Tongbao's calligraphy and inscription inspired subsequent Central Asian, Japanese, Korean, Ryūkyūan, and Vietnamese cash coins and became the standard until the last cash coin to use the inscription "通寶" was cast until the early 1940s in French Indochina. After the fall of the Tang dynasty Kaiyuan Tongbao coins would continue to be produced by various states of the Five Dynasties and Ten Kingdoms period ...
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Tang Dynasty
The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period. Historians generally regard the Tang as a high point in Chinese civilization, and a golden age of cosmopolitan culture. Tang territory, acquired through the military campaigns of its early rulers, rivaled that of the Han dynasty. The Lǐ family () founded the dynasty, seizing power during the decline and collapse of the Sui Empire and inaugurating a period of progress and stability in the first half of the dynasty's rule. The dynasty was formally interrupted during 690–705 when Empress Wu Zetian seized the throne, proclaiming the Wu Zhou dynasty and becoming the only legitimate Chinese empress regnant. The devastating An Lushan Rebellion (755–763) shook the nation and led to the decline of central authority in the dynasty' ...
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Sui Dynasty
The Sui dynasty (, ) was a short-lived imperial dynasty of China that lasted from 581 to 618. The Sui unified the Northern and Southern dynasties, thus ending the long period of division following the fall of the Western Jin dynasty, and laying the foundations for the much longer lasting Tang dynasty. Founded by Emperor Wen of Sui, the Sui dynasty capital was Chang'an (which was renamed Daxing, modern Xi'an, Shaanxi) from 581–605 and later Luoyang (605–18). Emperors Wen and his successor Yang undertook various centralized reforms, most notably the equal-field system, intended to reduce economic inequality and improve agricultural productivity; the institution of the Five Departments and Six Board (五省六曹 or 五省六部) system, which is a predecessor of Three Departments and Six Ministries system; and the standardization and re-unification of the coinage. They also spread and encouraged Buddhism throughout the empire. By the middle of the dynasty, the new ...
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National Institute Of Korean History
The National Institute of Korean History (NIKH) is a South Korean national organization in charge of researching, collecting, compiling, promoting the study of historical materials on Korean history. It was established as ''Guksagwan'' (국사관 國史館) in March 1946, one year after the liberation of Korea and was changed to the current name in 1949. As a branch of the Ministry of Education, the Institute certifies and supervises drafts of history textbooks used in middle and high schools. It conducts educational programs for government officials and teachers of elementary, middle, and high schools. It also operates a school to train competent translators of historical documents written in classical Chinese and pre-modern Japanese. The Institute holds and supervises the Korean History Proficiency Test four times a year, and sponsors the annual Korean History Competition among middle and high school students. Starting in 2015, two emeritus professors of history served as lead au ...
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Yeopjeon
A ''yeopjeon'' (Hangul: 엽전; Hanja: 葉錢; "leaf coin") was a Korean brass coin with a square cut out which was first issued in 1678 and continued until the final years of the Chosun Dynasty. New history of Korea - Page 516 Hyŏn-hŭi Yi, Sŏng-su Pak, Nae-hyŏn Yun - 2005 At this time, the bulk of Korean currency was the so-called ''yeopjeon'' brass coin and a nickel coin. Japan had the existing currency replaced by coins newly minted by a Japanese bank, Daiichi Ginko, and planned the new currency to circulate ... While coins with a similar design had been unsuccessfully used during the earlier Goryeo period as well. The '' Sangpyeong Tongbo'' (常平通寶) cash coins were known as ''yeopjeon'' because of the way that these cash coins resembled leaves on a branch when they were being cast in the casting mould. In the western world all coins with this design are commonly called "cash coins". In 1908 the value of a ''yeopjeon'' was set at 0.2 chon (or won). Modern inf ...
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