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Ibrāhīm Al-Fazārī
Ibrahim ibn Habib ibn Sulayman ibn Samura ibn Jundab Banu Fazara, al-Fazari () (died 777 CE) was an 8th-century Muslim mathematician and astronomer at the Abbasid court of the Caliph Al-Mansur (r. 754–775). He should not to be confused with his son Muḥammad ibn Ibrāhīm al-Fazārī, also an astronomer. He composed various astronomical writings ("on the astrolabe", "on the armillary spheres", "on the calendar"). The Caliph ordered him and his son to translate the Indian astronomical text, The ''Sindhind'' along with Yaʿqūb ibn Ṭāriq, which was completed in Baghdad about 750 CE, and entitled ''Az-Zīj ‛alā Sinī al-‛Arab''. This translation was possibly the vehicle by means of which the Hindu numeral system (i.e. modern number notation) was transmitted from India to Iran. At the end of the eighth century, while at the court of the Abbasid Caliphate, this Muslim geographer mentioned Ghana, "the land of gold." See also * His son, Muḥammad ibn Ibrāhīm al-Fazā ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baghdad
Baghdad (; ar, بَغْدَاد , ) is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris near the ruins of the ancient city of Babylon and the Sassanid Persian capital of Ctesiphon. In 762 CE, Baghdad was chosen as the capital of the Abbasid Caliphate, and became its most notable major development project. Within a short time, the city evolved into a significant cultural, commercial, and intellectual center of the Muslim world. This, in addition to housing several key academic institutions, including the House of Wisdom, as well as a multiethnic and multi-religious environment, garnered it a worldwide reputation as the "Center of Learning". Baghdad was the largest city in the world for much of the Abbasid era during the Islamic Golden Age, peaking at a population of more than a million. The city was largely destroyed at the hands of the Mongol Empire in 1258, resulting in a decline that would linger through many c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Iranian Scientists
The following is a non-comprehensive list of Iranian scientists, engineers, and scholars who lived from antiquity up until the beginning of the modern age. For the modern era, see List of contemporary Iranian scientists, scholars, and engineers. For mathematicians of any era, see List of Iranian mathematicians. (A person may appear on two lists, e.g. Abū Ja'far al-Khāzin.) A * Abdul Qadir Gilani (12th century) theologian and philosopher * Abu al-Qasim Muqane'i (10th century) physician * Abu Dawood (c. 817–889), Islamic scholar * Abu Hanifa (699–767), Islamic scholar * Abu Said Gorgani (10th century) * 'Adud al-Dawla (936–983), scientific patron * Ahmad ibn Farrokh (12th century), physician * Ahmad ibn 'Imad al-Din (11th century), physician and chemist * Alavi Shirazi (1670–1747), royal physician to Mughal Empire of South Asia * Amuli, Muhammad ibn Mahmud (c. 1300–1352), physician * Abū Ja'far al-Khāzin (900–971), mathematician and astronomer * Ansari, K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8th-century Astrologers
The 8th century is the period from 701 (Roman numerals, DCCI) through 800 (Roman numerals, 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 Caliphate, Umayyad Empire was famously halted at the Siege of Constantinople (718), 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 Monarchy, kingdoms. In Asia, the Pala Empire is founded in Bengal. The Tang dynasty reaches its pinnacle under China, Chinese Emperor Xuanzong of Tang, Emperor Xuanzong. The Nara period begins in Japan. Events * Estimated century in which the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8th-century Astronomers
The 8th century is the period from 701 (Roman numerals, DCCI) through 800 (Roman numerals, 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 Caliphate, Umayyad Empire was famously halted at the Siege of Constantinople (718), 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 Monarchy, kingdoms. In Asia, the Pala Empire is founded in Bengal. The Tang dynasty reaches its pinnacle under China, Chinese Emperor Xuanzong of Tang, Emperor Xuanzong. The Nara period begins in Japan. Events * Estimated century in which the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8th-century People From The Abbasid Caliphate
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] |
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] |
Mathematicians From The Abbasid Caliphate
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History One of the earliest known mathematicians were Thales of Miletus (c. 624–c.546 BC); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales' Theorem. The number of known mathematicians grew when Pythagoras of Samos (c. 582–c. 507 BC) established the Pythagorean School, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman mathematician recorded by history was Hypatia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8th-century 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] |
Astrologers Of The Medieval Islamic World
Astrology is a range of divinatory practices, recognized as pseudoscientific since the 18th century, that claim to discern information about human affairs and terrestrial events by studying the apparent positions of celestial objects. Different cultures have employed forms of astrology since at least the 2nd millennium BCE, these practices having originated in calendrical systems used to predict seasonal shifts and to interpret celestial cycles as signs of divine communications. Most, if not all, cultures have attached importance to what they observed in the sky, and some—such as the Hindus, Chinese, and the Maya—developed elaborate systems for predicting terrestrial events from celestial observations. Western astrology, one of the oldest astrological systems still in use, can trace its roots to 19th–17th century BCE Mesopotamia, from where it spread to Ancient Greece, Rome, the Islamic world, and eventually Central and Western Europe. Contemporary Western astrology i ... [...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] |
777 Deaths
777 may refer to: * 777 (number), a number * AD 777, a year of the Julian calendar * 777 BC, a year in the 8th century BC * Boeing 777, a commercial jet airliner :* Boeing 777X, the newer generation of the Boeing 777. Art and entertainment Albums * 777 (AAA album), ''777'' (AAA album), 2012 album by Japanese band AAA * 777 (DVD), ''777'' (DVD), 2007 DVD by Christian metalcore band Underoath * 777 (Jason Derulo album), ''777'' (Jason Derulo album), an unreleased album by U.S. singer and songwriter Jason Derulo * 777 (Latto album), ''777'' (Latto album), 2022 * 777 (System 7 album), ''777'' (System 7 album), 1993 album by British electronic dance music group System 7 * ''777 – Cosmosophy'', 2012 album by French black metal band Blut Aus Nord * ''777 – Sect(s)'', 2011 album by Blut Aus Nord * ''777 – The Desanctification'', 2011 album by Blut Aus Nord * ''777 (Tonetta album), 777'', 2010 album by Tonetta * ''Danzig 777: I Luciferi'', 2002 album by Danzig Bands * 777 (band), or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Nelson Frye
Richard Nelson Frye (January 10, 1920 – March 27, 2014) was an American scholar of Iranian and Central Asian studies, and Aga Khan Professor Emeritus of Iranian Studies at Harvard University. His professional areas of interest were Iranian philology and the history of Iran and Central Asia before 1000 CE. Born in Birmingham, Alabama, to a family of immigrants from Sweden, "Freij" had four children, his second marriage being to an Iranian-Assyrian scholar, Eden Naby, from Urmia, Iran who teaches at Columbia University. He spoke fluent Russian, German, Arabic, Persian, Pashto, French, Uzbek, and Turkish, and had extensive knowledge of Avestan, Pahlavi, Sogdian, and other Iranian languages and dialects, both extinct and current. Although Frye is mostly known for his works about Iran, the Iranian peoples and Iranian Central Asia, the scope of his studies was much wider and includes Byzantine, Caucasian, and Ottoman history, Eastern Turkistan, Assyria and the Assyrian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
