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Bahmanyār
Abu al-Hasan (or Abu al-Husayn) Bahmanyar ibn al-Marzuban, better simply known as Bahmanyar ( fa, بهمنیار; died 1066) was an Iranian scholar, who is mainly known as one of the most prominent pupils of Avicenna (d. 1037). Background Bahmanyar was from a Zoroastrian family, reportedly from Azerbaijan in northern Iran. His father may have been the Bavandid prince al-Marzuban, who ruled in Mazandaran in the late 10th-century, and was the author of the '' Marzban-nama''. Bahmanyar's knowledge of Arabic was not perfect. Life Little is known of Bahmanyar's life. He most likely started his studies in philosophy along with Abu al-Qasim al-Kirmani in the Buyid city of Ray in northern Iran. There they both became involved in the administration, while they read Avicenna works. Bahmanyar was possibly part of the Buyid court in Ray through family ties with the Bavandid princess Sayyida Shirin, her husband Fakhr al-Dawla () and son Majd al-Dawla (), both Buyid rulers of Ray. Bahma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kakuyid
The Kakuyids (also called Kakwayhids, Kakuwayhids or Kakuyah) ( fa, آل کاکویه) were a Shia Muslim dynasty of Daylamite origin that held power in western Persia, Jibal and Kurdistan (c. 1008–c. 1051). They later became ''atabegs'' (governors) of Yazd, Isfahan and Abarkuh from c. 1051 to 1141. They were related to the Buyids. Origins Scholars state that the Kakuyids were Daylamites, and relatives of Sayyida Shirin, who was from the Daylamite Bavand dynasty. History The founder of the Kakuyid dynasty was Ala al-Dawla Muhammad, a Daylamite military leader under the service of the Buyid amirate of Jibal. His father, Rustam Dushmanziyar, had also served the Buyids, and was given lands in the Alborz to protect them against the local rulers of the neighbouring region of Tabaristan. Rustam was the uncle of Sayyida Shirin, a princess from the Bavand dynasty who was married to the Buyid ''amir'' (ruler) Fakhr al-Dawla (). Because of this connection, Ala al-Dawla Muhammad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Unknown
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 ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pupils Of Avicenna
The pupil is a black hole located in the center of the iris of the eye that allows light to strike the retina.Cassin, B. and Solomon, S. (1990) ''Dictionary of Eye Terminology''. Gainesville, Florida: Triad Publishing Company. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil. The term "pupil" was coined by Gerard of Cremona. In humans, the pupil is round, but its shape varies between species; some cats, reptiles, and foxes have vertical slit pupils, goats have horizontally oriented pupils, and some catfish have annular types. In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop. The image of the pupil as seen from outside the eye is the entrance pupil, which does not exactly correspond to the location and size of the physical pupil because it is magnified by the cornea. On t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1066 Deaths
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] |
Writers About Music
A writer is a person who uses written words in different writing styles and techniques to communicate ideas. Writers produce different forms of literary art and creative writing such as novels, short stories, books, poetry, travelogues, plays, screenplays, teleplays, songs, and essays as well as other reports and news articles that may be of interest to the general public. Writers' texts are published across a wide range of media. Skilled writers who are able to use language to express ideas well, often contribute significantly to the cultural content of a society. The term "writer" is also used elsewhere in the arts and music, such as songwriter or a screenwriter, but also a stand-alone "writer" typically refers to the creation of written language. Some writers work from an oral tradition. Writers can produce material across a number of genres, fictional or non-fictional. Other writers use multiple media such as graphics or illustration to enhance the communication of thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logicians
Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the science of deductively valid inferences or of logical truths. It is a formal science investigating how conclusions follow from premises in a topic-neutral way. When used as a countable noun, the term "a logic" refers to a logical formal system that articulates a proof system. Formal logic contrasts with informal logic, which is associated with informal fallacies, critical thinking, and argumentation theory. While there is no general agreement on how formal and informal logic are to be distinguished, one prominent approach associates their difference with whether the studied arguments are expressed in formal or informal languages. Logic plays a central role in multiple fields, such as philosophy, mathematics, computer science, and linguistics. Logic studies arguments, which consist of a set of premises together with a conclusion. Premises and conclusions are usually und ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Former Zoroastrians
A former is an object, such as a template, gauge or cutting die, which is used to form something such as a boat's hull. Typically, a former gives shape to a structure that may have complex curvature. A former may become an integral part of the finished structure, as in an aircraft fuselage, or it may be removable, being using in the construction process and then discarded or re-used. Aircraft formers Formers are used in the construction of aircraft fuselage, of which a typical fuselage has a series from the nose to the empennage, typically perpendicular to the longitudinal axis of the aircraft. The primary purpose of formers is to establish the shape of the fuselage and reduce the column length of stringers to prevent instability. Formers are typically attached to longerons, which support the skin of the aircraft. The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction, and was typical of light aircraft built until the adv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shia Islam
Shīʿa Islam or Shīʿīsm is the second-largest branch of Islam. It holds that the Islamic prophet Muhammad designated ʿAlī ibn Abī Ṭālib as his successor (''khalīfa'') and the Imam (spiritual and political leader) after him, most notably at the event of Ghadir Khumm, but was prevented from succeeding Muhammad as the leader of the Muslims as a result of the choice made by some of Muhammad's other companions (''ṣaḥāba'') at Saqifah. This view primarily contrasts with that of Sunnī Islam, whose adherents believe that Muhammad did not appoint a successor before his death and consider Abū Bakr, who was appointed caliph by a group of senior Muslims at Saqifah, to be the first rightful (''rāshidūn'') caliph after Muhammad. Adherents of Shīʿa Islam are called Shīʿa Muslims, Shīʿītes, or simply Shīʿa or Shia. Shīʿa Islam is based on a ''ḥadīth'' report concerning Muhammad's pronouncement at Ghadir Khumm.Esposito, John. "What Everyone Nee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kunya (Arabic)
A ''kunya'' ( ar, كُنية) is a teknonym in Arabic names, the name of an adult usually derived from their oldest child. A kunya is a component of an Arabic name, a type of epithet, in theory referring to the bearer's first-born son or daughter. By extension, it may also have hypothetical or metaphorical references, e.g. in a ''nom de guerre'' or a nickname, without literally referring to a son or a daughter. Use of a kunya implies a familiar but respectful setting. A kunya is expressed by the use of ''Abu (Arabic term), abū'' (father) or ''Umm (given name), umm'' (mother) in a idafah, genitive construction, i.e. "father of" or "mother of" as an honorific in place of or alongside given names in the Arab world and the Islamic world more generally. General use ''Abu (Arabic term), Abū'' or ''Umm (given name), Umm'' precedes the son's or daughter's name, in a Iḍāfah, genitive construction (''ʼiḍāfa''). For example, the English Language, English equivalent would be to call ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotheism
Monotheism is the belief that there is only one deity, an all-supreme being that is universally referred to as God. Cross, F.L.; Livingstone, E.A., eds. (1974). "Monotheism". The Oxford Dictionary of the Christian Church (2 ed.). Oxford: Oxford University Press. A distinction may be made between exclusive monotheism, in which the one God is a singular existence, and both inclusive and pluriform monotheism, in which multiple gods or godly forms are recognized, but each are postulated as extensions of the same God. Monotheism is distinguished from henotheism, a religious system in which the believer worships one God without denying that others may worship different gods with equal validity, and monolatrism, the recognition of the existence of many gods but with the consistent worship of only one deity. The term ''monolatry'' was perhaps first used by Julius Wellhausen. Monotheism characterizes the traditions of Bábism, the Baháʼí Faith, Cheondoism, Christianity,Christianity's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abu'l-Hasan Bayhaqi
Zahir al-Din Abu'l-Hasan Ali ibn Zayd-i Bayhaqi ( fa, ظهیرالدین ابوالحسن علی بن زید بیهقی; c. 1097 – 1169) also known as Ibn Fondoq (ابن فندق) was an Iranian polymath and historian of Arab descent. He is the author of ''Tarikh-i Bayhaq''. Ancestry Bayhaqi was a descendant of Khuzaima ibn Thabit (died 657), a companion of Muhammad. Most of his forefathers were either judges or Imams. Biography Bayhaqi was born in Sabzevar, in northeastern Iran, the main city of the Bayhaq district, where his father’s estates were located. In 1114, Bahyaqi along with his father visited Omar Khayyam, the famous Persian mathematician and astronomer, in Nishapur and while there Bayhaqi began his education in literature and science. He moved to Marv to complete his studies in Islamic jurisprudence by 1123. He returned to Nishapur in c.1127 where according to Yaqut al-Hamawi, his studies were "interrupted by marriage". Bayhaqi became the qadi of Bayhaq through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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