Roger Of Hereford
Roger of Hereford (or Rogerus Herefordensis, or Roger Infans, or Roger Puer); a medieval astronomer, astrologer, alchemist and mathematician active in Hereford circa. 1178 - 1198. Roger's nationality, year of birth, and education are unknown. The earliest record dates to a commission in 1176 by Gilbert Foliot, the former Bishop of Hereford and then the Bishop of London, of a computus for the calculation of ecclesiastical dates. In this treatise Roger criticizes the calculations of Gerland (mathematician), Gerland as used in the standard text of the time, and draws on Hebrew and Arabic learning.BurnettHereford, Roger of (fl. 1176–1198) ''Oxford Dictionary of National Biography'' Roger's connection with Hereford are established by calculations in his tables setting the Meridian (geography), meridian at Hereford in 1178. It is probable that he and the Roger Infans attested in charters at Hereford (1186 - 1198), are one and the same. Roger's astronomical treatise, ''Liber de Quatuor ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Hereford
Hereford () is a cathedral city, civil parish and the county town of Herefordshire, England. It lies on the River Wye, approximately east of the border with Wales, south-west of Worcester and north-west of Gloucester. With a population of 53,112 in 2021 it is by far the largest settlement in Herefordshire. An early town charter from 1189, granted by Richard I of England, describes it as "Hereford in Wales". Hereford has been recognised as a city since time immemorial, with the status being reconfirmed as recently as October 2000. It is now known chiefly as a trading centre for a wider agricultural and rural area. Products from Hereford include cider, beer, leather goods, nickel alloys, poultry, chemicals and sausage rolls, as well as the famous Hereford breed of cattle. Toponymy The Herefordshire edition of Cambridge County Geographies states "a Welsh derivation of Hereford is more probable than a Saxon one" but the name "Hereford" is also said to come from the Angl ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Alfred Of Sareshel
Alfred of Sarashel, also known as Alfred the Philosopher, Alfred the Englishman or Alfredus Anglicus, was born in England some time in the 12th century and died in the 13th century. Not much more is known about his life apart from that he moved to Spain and worked in the Toledo School of Translators, where he translated several texts from Arabic and Greek into Latin. Works * Translation of the pseudo-Aristotelian ''De plantis'' from the Arabic. " Alfred the Englishman translated the Arabic version into Latin in the reign of Henry III. It was retranslated from this version into Greek at the Renaissance by a Greek resident in Italy." * Several commentaries on Aristotle, including four on his ''Meteors''. These were extant down to the 17th century but have not survived. * Wrote De motu cordis (On the Motion of the Heart) and dedicated it to Alexander Nequam. * ''De naturis Rerum'' *''De Educatione Accipitrum'' (On the mode of training hawks) * Five books on Boethius ''De consolation ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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12th-century English Mathematicians
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Medieval English Scientists
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages. Population decline, counterurbanisation, the collapse of centralized authority, invasions, and mass migrations of tribes, which had begun in late antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—most recently part of the Eastern Roman ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Medieval Orientalists
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages. Population decline, counterurbanisation, the collapse of centralized authority, invasions, and mass migrations of tribes, which had begun in late antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—most recently part of the Eastern R ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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12th-century English Writers
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Medieval English Astronomers
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages. Population decline, counterurbanisation, the collapse of centralized authority, invasions, and mass migrations of tribes, which had begun in late antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—most recently part of the Byzantine Emp ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Oxford University Press
Oxford University Press (OUP) is the university press of the University of Oxford. It is the largest university press in the world, and its printing history dates back to the 1480s. Having been officially granted the legal right to print books by decree in 1586, it is the second oldest university press after Cambridge University Press. It is a department of the University of Oxford and is governed by a group of 15 academics known as the Delegates of the Press, who are appointed by the vice-chancellor of the University of Oxford. The Delegates of the Press are led by the Secretary to the Delegates, who serves as OUP's chief executive and as its major representative on other university bodies. Oxford University Press has had a similar governance structure since the 17th century. The press is located on Walton Street, Oxford, opposite Somerville College, in the inner suburb of Jericho. For the last 500 years, OUP has primarily focused on the publication of pedagogical texts and ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Robert Grosseteste
Robert Grosseteste, ', ', or ') or the gallicised Robert Grosstête ( ; la, Robertus Grossetesta or '). Also known as Robert of Lincoln ( la, Robertus Lincolniensis, ', &c.) or Rupert of Lincoln ( la, Rubertus Lincolniensis, &c.). ( ; la, Robertus Grosseteste; 8 or 9 October 1253), also known as Robert Greathead or Robert of Lincoln, was an English statesman, scholastic philosopher, theologian, scientist and Bishop of Lincoln. He was born of humble parents in Suffolk (according to the early 14th-century chronicler Nicholas Trevet), but the associations with the village of Stradbroke is a post-medieval tradition. Upon his death, he was revered as a saint in England, but attempts to procure a formal canonisation failed. A. C. Crombie called him "the real founder of the tradition of scientific thought in medieval Oxford, and in some ways, of the modern English intellectual tradition". Scholarly career There is very little direct evidence about Grosseteste's education. H ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Adelard Of Bath
Adelard of Bath ( la, Adelardus Bathensis; 1080? 1142–1152?) was a 12th-century English natural philosopher. He is known both for his original works and for translating many important Arabic and Greek scientific works of astrology, astronomy, philosophy, alchemy and mathematics into Latin from Arabic versions, which were then introduced to Western Europe. The oldest surviving Latin translation of Euclid's ''Elements'' is a 12th-century translation by Adelard from an Arabic version. He is known as one of the first to introduce the Arabic numeral system to Europe. He stands at the convergence of three intellectual schools: the traditional learning of French schools, the Greek culture of Southern Italy, and the Arabic science of the East. Background Adelard's biography is incomplete in places and leaves some aspects open to interpretation. As a result, much of what is ascribed to Adelard is a product of his own testimony. As his name suggests, he claims to come from the Roma ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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University Of Leicester
, mottoeng = So that they may have life , established = , type = public research university , endowment = £20.0 million , budget = £326 million , chancellor = David Willetts , vice_chancellor = Nishan Canagarajah , head_label = Visitor , head = The King , academic_staff = 1,705 (2018/19) , administrative_staff = 2,205 (2018/19) , students = () , undergrad = () , postgrad = () , city = Leicester , country = England, UK , coordinates = , campus = Urban parkland , colours = , website = , logo = UniOfLeicesterLogo.svg , logo_size = 250px , affiliations = ACUAMBA EMUA EUA Sutton 30 M5 UniversitiesUniversities UK The University of Leicester ( ) is a public research university based in Leicester, England. The main campus is south of the city centre, adjacent to Victoria Park. The university's predecessor, University College, Leicester, gained university status in 1957. The university had an income of £323.1 million in 2019/20, of which £5 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Gilbert Foliot
Gilbert Foliot ( c. 1110 – 18 February 1187) was a medieval English monk and prelate, successively Abbot of Gloucester, Bishop of Hereford and Bishop of London. Born to an ecclesiastical family, he became a monk at Cluny Abbey in France at about the age of twenty. After holding two posts as prior in the Cluniac order he was appointed Abbot of Gloucester Abbey in 1139, a promotion influenced by his kinsman Miles of Gloucester. During his tenure as abbot he acquired additional land for the abbey, and may have helped to fabricate some charters—legal deeds attesting property ownership—to gain advantage in a dispute with the Archbishops of York. Although Foliot recognised Stephen as the King of England, he may have also sympathised with the Empress Matilda's claim to the throne. He joined Matilda's supporters after her forces captured Stephen, and continued to write letters in support of Matilda even after Stephen's release. Foliot accompanied Theobald of Bec, the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |