Yaʿqūb Ibn Ṭāriq
Yaʿqūb ibn Ṭāriq (; died AD) was an 8th-century Persian astronomer and mathematician who lived in Baghdad. Works Works ascribed to Yaʿqūb ibn Ṭāriq include:Plofker * (, "Astronomical tables in the ''Sindhind'' resolved for each degree") * (, "Arrangement of the orbs") * (, "Rationales") * (, "Distribution of the ''kardajas'' of the sine") * (, "Elevation along the arc of the meridian") An astrological work called (, "The Chapters") is also ascribed to Yaʿqūb ibn Ṭāriq by an unreliable source. Yaʿqūb ibn Ṭāriq's , written around 770, was based on a Sanskrit work, thought to be similar to the ''Brāhmasphuṭasiddhānta''.Pingree, p. 97 It was brought to the court of al-Mansūr from Sindh, reportedly by a Sindhi astronomer named Kankah.Kennedy 1956, p. 134, 71 dealt with cosmography (the placement and sizes of the heavenly bodies). The estimations of the sizes and distances of the heavenly bodies in were tabulated in the 11th century by al-Bīrūn ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Persian People
The Persians are an Iranian ethnic group who comprise over half of the population of Iran. They share a common cultural system and are native speakers of the Persian language as well as of the languages that are closely related to Persian. The ancient Persians were originally an ancient Iranian people who had migrated to the region of Persis (corresponding to the modern-day Iranian province of Fars) by the 9th century BCE. Together with their compatriot allies, they established and ruled some of the world's most powerful empires that are well-recognized for their massive cultural, political, and social influence, which covered much of the territory and population of the ancient world.. Throughout history, the Persian people have contributed greatly to art and science. Persian literature is one of the world's most prominent literary traditions. In contemporary terminology, people from Afghanistan, Tajikistan, and Uzbekistan who natively speak the Persian language are know ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Journal Of Near Eastern Studies
The ''Journal of Near Eastern Studies'' is an academic journal published by the University of Chicago Press, covering research on the ancient and medieval civilisations of the Near East, including their archaeology, art, history, literature, linguistics, religion, law, and science. JNES is devoted to the study of the civilizations of the Near East from prehistory to the end of the Ottoman period in 1922. ''JNES'' embraces a uniquely broad scope of time, place, and topic, including contributions from scholars of international reputation on topics in Assyriology, Egyptology, Hittitology, Hebrew Bible, and allied ancient studies, as well as a second area of emphasis in early, medieval, and early-modern Islamic studies. The disciplinary range of the journal runs from history and language to religion and literature to archaeology and art history. The ''Journal of Near Eastern Studies'' was founded in 1884, with an original emphasis on Old Testament studies. The journal was renamed twic ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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8th-century Iranian Astronomers
The 8th century is the period from 701 ( DCCI) through 800 ( DCCC) in accordance with the Julian Calendar. The coast of North Africa and the Iberian Peninsula quickly came under Islamic Arab domination. The westward expansion of the Umayyad Empire was famously halted at the siege of Constantinople by the Byzantine Empire and the Battle of Tours by the Franks. The tide of Arab conquest came to an end in the middle of the 8th century.Roberts, J., ''History of the World'', Penguin, 1994. In Europe, late in the century, the Vikings, seafaring peoples from Scandinavia, begin raiding the coasts of Europe and the Mediterranean, and go on to found several important kingdoms. In Asia, the Pala Empire is founded in Bengal. The Tang dynasty reaches its pinnacle under Chinese Emperor Xuanzong. The Nara period begins in Japan. Events * Estimated century in which the poem Beowulf is composed. * Classical Maya civilization begins to decline. * The Kombumerri burial grounds are founded. * ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Medieval Iranian Astrologers
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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People From Baghdad
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Astronomers Of The Medieval Islamic World
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational and theoretical. Observational astronomers make direct observations of celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate models of things that cannot be observed. Because it takes millions to billions of years for a system of stars or a galaxy to complete a life cycle, astronomers must observe snapshots of differe ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Astronomers From The Abbasid Caliphate
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational and theoretical. Observational astronomers make direct observations of celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate models of things that cannot be observed. Because it takes millions to billions of years for a system of stars or a galaxy to complete a life cycle, astronomers must observe snapshots of differe ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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8th-century Iranian Mathematicians
The 8th century is the period from 701 ( DCCI) through 800 ( DCCC) in accordance with the Julian Calendar. The coast of North Africa and the Iberian Peninsula quickly came under Islamic Arab domination. The westward expansion of the Umayyad Empire was famously halted at the siege of Constantinople by the Byzantine Empire and the Battle of Tours by the Franks. The tide of Arab conquest came to an end in the middle of the 8th century.Roberts, J., ''History of the World'', Penguin, 1994. In Europe, late in the century, the Vikings, seafaring peoples from Scandinavia, begin raiding the coasts of Europe and the Mediterranean, and go on to found several important kingdoms. In Asia, the Pala Empire is founded in Bengal. The Tang dynasty reaches its pinnacle under Chinese Emperor Xuanzong. The Nara period begins in Japan. Events * Estimated century in which the poem Beowulf is composed. * Classical Maya civilization begins to decline. * The Kombumerri burial grounds are founded. * ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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796 Deaths
__NOTOC__ Year 796 ( DCCXCVI) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 796 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place North America * The Three Fires Confederacy is formed at Michilimackinac. Europe * King Charlemagne organizes an invasion of the Avar Khaganate, with one army under his son Pepin of Italy and another army under one of his vassals, the Croat Duke Vojnomir. The two armies launch a successful two-pronged invasion of the Avar Khaganate (modern Hungary). They seize the Avar "ring" (the nomadic tent capital), destroying Avar power before returning with so much booty in gold and jewels that 15 wagons, each drawn by four oxen, are needed to bring it back to Frankish territory. Charlemagne wins a major victory (in which the Lower Pannonian duke Vojnomir aids him ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Year Of Birth Missing
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the mea ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Zeitschrift Der Deutschen Morgenländischen Gesellschaft
The ''Zeitschrift der Deutschen Morgenländischen Gesellschaft'' (English: "Journal of the German Oriental Society") is a peer-reviewed academic journal covering Oriental studies, published by Harrassowitz Verlag on behalf of the Deutsche Morgenländische Gesellschaft. It was established in 1847 and the editor-in-chief is Florian C. Reiter (Humboldt University of Berlin). Digitisation The journal has been digitized and is available from the University of Halle Martin Luther University of Halle-Wittenberg (german: Martin-Luther-Universität Halle-Wittenberg), also referred to as MLU, is a public, research-oriented university in the cities of Halle and Wittenberg and the largest and oldest university i .... The journal is available from 1847 to 2013, together with various indexes and supplements, including the Deutscher Orientalistentag volumes from 1968 to 1995. References External links * Oriental studies Multilingual journals Publications established in 1847 184 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Fuat Sezgin
Fuat Sezgin (24 October 1924 – 30 June 2018) was a Turkish orientalist who specialized in the history of Arabic-Islamic science. He was ''professor emeritus'' of the History of Natural Science at Johann Wolfgang Goethe University in Frankfurt, Germany and the founder and honorary director of the Institute of the History of the Arab Islamic Sciences there. He also created museums in Frankfurt and Istanbul with replicas of historical Arabic-Islamic scientific instruments, tools and maps. The utility of a museum of replicas in an antiquarian field contaminated by fakes is discussed by Prof. Nir Shafir at the Internet web site ''Aeon'' in 2018 at https://aeon.co/essays/why-fake-miniatures-depicting-islamic-science-are-everywhere His best known publication is the 17-volume ''Geschichte des Arabischen Schrifttums'', a standard reference in the field. Career Sezgin earned his PhD from Istanbul University under the German Orientalist Hellmut Ritter in 1950. His thesis titled "Buhari ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |