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Biruni
Abu Rayhan Muhammad ibn Ahmad al-Biruni (973 – after 1050) commonly known as al-Biruni, was a Khwarazmian Iranian in scholar and polymath during the Islamic Golden Age. He has been called variously the "founder of Indology", "Father of Comparative Religion", "Father of modern geodesy", and the first anthropologist. Al-Biruni was well versed in physics, mathematics, astronomy, and natural sciences, and also distinguished himself as a historian, chronologist, and linguist. He studied almost all the sciences of his day and was rewarded abundantly for his tireless research in many fields of knowledge. Royalty and other powerful elements in society funded Al-Biruni's research and sought him out with specific projects in mind. Influential in his own right, Al-Biruni was himself influenced by the scholars of other nations, such as the Greeks, from whom he took inspiration when he turned to the study of philosophy. A gifted linguist, he was conversant in Khwarezmian, Persian, Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afrighid Dynasty
The Afrighids ( Khwarazmian: ''ʾfryḡ'') were a native Khwarezmian IranianClifford Edmund Bosworth, The New Islamic Dynasties: A Chronological and Genealogical Manual, Columbia University, 1996. dynasty who ruled over the ancient kingdom of Khwarezm. Over time, they were under the suzerainty of the Sasanian Empire, the Hephthalite Empire, the Göktürk Khaganate, the Umayyad Caliphate, Abbasid Caliphate and the Samanid Empire. They were ultimately deposed by a rival family, the Ma'munids of Gurganj, who became the new rulers of Khwarazm. Sources Al-Biruni, the native Khwarezmian scholar, mentions twenty-two members of the Afrighid dynasty for a total span of 690 years with an average rule of 31 years for each ruler. According to him, the Afrighids ruled from 305, through the Arab conquests under Qutayba ibn Muslim in 712, and up to their overthrow in 995 by the rising rival family of Ma'munids. The main source on the Afrighids prior to Islam is also Al-Biruni. Part of the re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khwarezm
Khwarazm (; Old Persian: ''Hwârazmiya''; fa, خوارزم, ''Xwârazm'' or ''Xârazm'') or Chorasmia () is a large oasis region on the Amu Darya river delta in western Central Asia, bordered on the north by the (former) Aral Sea, on the east by the Kyzylkum Desert, on the south by the Karakum Desert, and on the west by the Ustyurt Plateau. It was the center of the Iranian Khwarezmian civilization, and a series of kingdoms such as the Afrighid dynasty and the Anushtegin dynasty, whose capitals were (among others) Kath, Gurganj (now Konye-Urgench) and – from the 16th century on – Khiva. Today Khwarazm belongs partly to Uzbekistan and partly to Turkmenistan. Names and etymology Names Khwarazm has been known also as ''Chorasmia'', ''Khaurism'', ''Khwarezm'', ''Khwarezmia'', ''Khwarizm'', ''Khwarazm'', ''Khorezm'', ''Khoresm'', ''Khorasam'', ''Kharazm'', ''Harezm'', ''Horezm'', and ''Chorezm''. In Avestan the name is '; in Old Persian 𐎢𐎺𐎠𐎼𐏀𐎷 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Remaining Signs Of Past Centuries
''The Remaining Signs of Past Centuries'' ( ar, کتاب الآثار الباقية عن القرون الخالية ', also known as ''Chronology of Ancient Nations'' or ''Vestiges of the Past'', after the translation published by Eduard Sachau in 1879) by Abū Rayhān al-Bīrūnī, is a comparative study of calendars of different cultures and civilizations, interlaced with mathematical, astronomical, and historical information, exploring the customs and religions of different peoples. Completed in 1000 AD (AH 390/1), it is Al-Biruni's first major work, compiled in Gorgan, at the court of Qabus, when he was in his late twenties.Seyyed Hossein Nasr, ''An Introduction to Islamic Cosmological Doctrines'' (1993), , p. 108. Overview The text survives in an early 14th-century Ilkhanid manuscript by Ibn al-Kutbi (the "Edinburgh codex", AH 707 / AD 1307–8, 179 folios, Northwestern Iran or northern Iraq, kept at the Edinburgh University Library, MS Arab 161). The manuscript contains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamic Philosophy
Islamic philosophy is philosophy that emerges from the Islamic tradition. Two terms traditionally used in the Islamic world are sometimes translated as philosophy—falsafa (literally: "philosophy"), which refers to philosophy as well as logic, mathematics, and physics; and Kalam (literally "speech"), which refers to a rationalist form of Scholastic Islamic theology which includes the schools of Maturidiyah, Ashaira and Mu'tazila. Early Islamic philosophy began with Al-Kindi in the 2nd century of the Islamic calendar (early 9th century CE) and ended with Averroes (Ibn Rushd) in the 6th century AH (late 12th century CE), broadly coinciding with the period known as the Golden Age of Islam. The death of Averroes effectively marked the end of a particular discipline of Islamic philosophy usually called the Peripatetic Islamic school, and philosophical activity declined significantly in Western Islamic countries such as Islamic Iberia and North Africa. Islamic philosophy persi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geography
Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of Earth. The first recorded use of the word γεωγραφία was as a title of a book by Greek scholar Eratosthenes (276–194 BC). Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. One such concept, the first law of geography, proposed by Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." Geography has been called "the world discipline" and "the bridge between the human and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumference Of The Earth
Earth's circumference is the distance around Earth. Measured around the Equator, it is . Measured around the poles, the circumference is . Measurement of Earth's circumference has been important to navigation since ancient times. The first known scientific measurement and calculation was done by Eratosthenes, who achieved a great degree of precision in his computation. Treating the Earth as a sphere, its circumference would be its single most important measurement. Earth deviates from spherical by about 0.3%, as characterized by flattening. In modern times, Earth's circumference has been used to define fundamental units of measurement of length: the nautical mile in the seventeenth century and the metre in the eighteenth. Earth's polar circumference is very near to 21,600 nautical miles because the nautical mile was intended to express one minute of latitude (see meridian arc), which is 21,600 partitions of the polar circumference (that is 60 minutes × 360 degrees). The p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghazni
Ghazni ( prs, غزنی, ps, غزني), historically known as Ghaznain () or Ghazna (), also transliterated as Ghuznee, and anciently known as Alexandria in Opiana ( gr, Αλεξάνδρεια Ωπιανή), is a city in southeastern Afghanistan with a population of around 190,000 people. The city is strategically located along Highway 1, which has served as the main road between Kabul and Kandahar for thousands of years. Situated on a plateau at 2,219 metres (7,280 ft) above sea level, the city is south of Kabul and is the capital of Ghazni Province. Ghazni Citadel, the Minarets of Ghazni, the Palace of Sultan Mas'ud III, and several other cultural heritage sites have brought travelers and archeologists to the city for centuries. During the pre-Islamic period, the area was inhabited by various tribes who practiced different religions including Zoroastrianism, Buddhism and Hinduism. Arab Muslims introduced Islam to Ghazni in the 7th century and were followed in the 9th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamic Golden Age
The Islamic Golden Age was a period of cultural, economic, and scientific flourishing in the history of Islam, traditionally dated from the 8th century to the 14th century. This period is traditionally understood to have begun during the reign of the Abbasid caliph Harun al-Rashid (786 to 809) with the inauguration of the House of Wisdom in Baghdad, the world's largest city by then, where Muslim scholars and polymaths from various parts of the world with different cultural backgrounds were mandated to gather and translate all of the known world's classical knowledge into Aramaic and Arabic. The period is traditionally said to have ended with the collapse of the Abbasid caliphate due to Mongol invasions and the Siege of Baghdad in 1258. A few scholars date the end of the golden age around 1350 linking with the Timurid Renaissance, while several modern historians and scholars place the end of the Islamic Golden Age as late as the end of 15th to 16th centuries meeting with the I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Sijzi
Abu Sa'id Ahmed ibn Mohammed ibn Abd al-Jalil al-Sijzi (c. 945 - c. 1020, also known as al-Sinjari and al-Sijazi; fa, ابوسعید سجزی; Al-Sijzi is short for "Al-Sijistani") was an Iranian Muslim astronomer, mathematician, and astrologer. He is notable for his correspondence with al-Biruni and for proposing that the Earth rotates around its axis in the 10th century. He dedicated work to 'Adud al-Daula, who was probably his patron, and to the prince of Balkh. He also worked in Shiraz making astronomical observations from 969 to 970. Mathematics Al-Sijzi studied intersections of conic sections and circles. He replaced the old kinematical trisection of an angle by a purely geometric solution (intersection of a circle and an equilateral hyperbola.) Earth's rotation Al-Biruni tells us that Al-Sijzi invented an astrolabe, called "al-zūraqī", whose design was based on the idea that the Earth rotates: Al-Biruni also referred to Al-Sijzi as a prominent astronomer who d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ziyarid Dynasty
The Ziyarid dynasty ( fa, زیاریان) was an Iranian dynasty of Gilaki origin that ruled Tabaristan from 931 to 1090 during the Iranian Intermezzo period. The empire rose to prominence during the leadership of Mardavij. After his death, his brother Vushmgir and his Samanid allies led the dynasty in wrestling for control over territory against the Buyids in the early- to mid-10th century. When Vushmgir died, his sons Bisutun and Qabus fought for influence. Qabus would eventually outlive his brother and ruled the kingdom. However, Qabus was placed in exile from 980 to 998 by the Buyid ruler, Adud al-Dawla who would then dominate Tabaristan, the heartland of Ziyarid power. A succession of other rulers came to rule the kingdom with Ghaznavid support in the early 11th century. The Nizari Ismaili state invaded and ended Ziyarid rule in 1090. At its greatest extent, it ruled much of present-day western and northern Iran. During the turn of the century, the kingdom attracted many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthropology
Anthropology is the scientific study of humanity, concerned with human behavior, human biology, cultures, societies, and linguistics, in both the present and past, including past human species. Social anthropology studies patterns of behavior, while cultural anthropology studies cultural meaning, including norms and values. A portmanteau term sociocultural anthropology is commonly used today. Linguistic anthropology studies how language influences social life. Biological or physical anthropology studies the biological development of humans. Archaeological anthropology, often termed as 'anthropology of the past', studies human activity through investigation of physical evidence. It is considered a branch of anthropology in North America and Asia, while in Europe archaeology is viewed as a discipline in its own right or grouped under other related disciplines, such as history and palaeontology. Etymology The abstract noun ''anthropology'' is first attested in reference t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abu Nasr Mansur
Abu Nasri Mansur ibn Ali ibn Iraq ( fa, أبو نصر منصور بن علی بن عراق; c. 960 – 1036) was a Persian Muslim mathematician and astronomer. He is well known for his work with the spherical sine law.Bijli suggests that three mathematicians are in contention for the honor, Alkhujandi, Abdul-Wafa and Mansur, leaving out Nasiruddin Tusi. Bijli, Shah Muhammad and Delli, Idarah-i Adabiyāt-i (2004) ''Early Muslims and their contribution to science: ninth to fourteenth century'' Idarah-i Adabiyat-i Delli, Delhi, India, page 44, Abu Nasr Mansur was born in Gilan, Persia, to the ruling family of Khwarezm, the Afrighids. He was thus a prince within the political sphere. He was a student of Abu'l-Wafa and a teacher of and also an important colleague of the mathematician, Al-Biruni. Together, they were responsible for great discoveries in mathematics and dedicated many works to one another. Most of Abu Nasri's work focused on math, but some of his writings were on as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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