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Gerard Of Silteo
Gerard of Silteo also given as Gerardus Feltrensis, Gerardo of Feltre, Gerardus de Silteo, Gerardus de Silcro (11 March 1218 – c. 1291?) was a 13th century Dominican Order, Dominican friar who is known only from a manuscript treatise, ''Summa de astris'' (1264/65) which is thought to have been prompted by the appearance of the Great Comet of 1264. The book examines stellar objects, astronomical knowledge of the time, and includes a criticism of astrology of the period. Biography Gerard is thought to have been born in Feltre (Belluno) and according to a horoscope record in his work his date of birth has been determined as 11 March 1218. His name has been variously recorded and some may be corruptions such as "Sileto". He is thought to have joined the Dominican order during the time of Giovanni da Vercelli as head of the Order (1264–83). He considered Albertus Magnus as a master of the subject but went on to criticize his astrology. He studied the Great Comet of 1264 and this inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominican Order
The Order of Preachers ( la, Ordo Praedicatorum) abbreviated OP, also known as the Dominicans, is a Catholic mendicant order of Pontifical Right for men founded in Toulouse, France, by the Spanish priest, saint and mystic Dominic of Caleruega. It was approved by Pope Honorius III via the papal bull '' Religiosam vitam'' on 22 December 1216. Members of the order, who are referred to as ''Dominicans'', generally carry the letters ''OP'' after their names, standing for ''Ordinis Praedicatorum'', meaning ''of the Order of Preachers''. Membership in the order includes friars, nuns, active sisters, and lay or secular Dominicans (formerly known as tertiaries). More recently there has been a growing number of associates of the religious sisters who are unrelated to the tertiaries. Founded to preach the Gospel and to oppose heresy, the teaching activity of the order and its scholastic organisation placed the Preachers in the forefront of the intellectual life of the M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahl Ibn Bishr
Sahl ibn Bishr al-Israili (c. 786–c. 845), also known as Rabban al-Tabari and Haya al-Yahudi ("the Jew"), was a Jewish Syriac Christian astrologer, astronomer and mathematician from Tabaristan. He was the father of Ali ibn Sahl the famous scientist and physician, who became a convert to Islam. He served as astrologer to the governor of Khuristan and then to the vizier of Baghdad. He wrote books on astronomy, astrology, and arithmetic, all in Arabic. His works Sahl is believed to be the first who translated the ''Almagest'' of Ptolemy into Arabic. Sahl ibn Bishr wrote in the Greek astrological tradition. Sahl's first five books were preserved in the translation of John of Seville (Johannes Hispanus John of Seville (Latin: ''Johannes Hispalensis'' or ''Johannes Hispaniensis'') ( fl. 1133-53) was one of the main translators from Arabic into Castilian in partnership with Dominicus Gundissalinus during the early days of the Toledo School of Tran ...) (c. 1090 – c. 1150). S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1218 Births
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] |
Italian Dominicans
Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Italian, regional variants of the Italian language ** Languages of Italy, languages and dialects spoken in Italy ** Italian culture, cultural features of Italy ** Italian cuisine, traditional foods ** Folklore of Italy, the folklore and urban legends of Italy ** Mythology of Italy, traditional religion and beliefs Other uses * Italian dressing, a vinaigrette-type salad dressing or marinade * Italian or Italian-A, alternative names for the Ping-Pong virus, an extinct computer virus See also * * * Italia (other) * Italic (other) * Italo (other) * The Italian (other) The Italian may refer to: * ''The Italian'' (1915 film), a silent film by Reginald Barker * ''The Italian'' (2005 film), a Russian film by A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
13th-century Italian Astronomers
The 13th century was the century which lasted from January 1, 1201 ( MCCI) through December 31, 1300 ( MCCC) in accordance with the Julian calendar. The Mongol Empire was founded by Genghis Khan, which stretched from Eastern Asia to Eastern Europe. The conquests of Hulagu Khan and other Mongol invasions changed the course of the Muslim world, most notably the Siege of Baghdad (1258), the destruction of the House of Wisdom and the weakening of the Mamluks and Rums which, according to historians, caused the decline of the Islamic Golden Age. Other Muslim powers such as the Mali Empire and Delhi Sultanate conquered large parts of West Africa and the Indian subcontinent, while Buddhism witnessed a decline through the conquest led by Bakhtiyar Khilji. The Southern Song dynasty would begin the century as a prosperous kingdom but would eventually be invaded and annexed into the Yuan dynasty of the Mongols. The Kamakura Shogunate of Japan would be invaded by the Mongols. Goryeo resiste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mashallah Ibn Athari
''Mashallah'' ( ar, مَا شَاءَ ٱللَّٰهُ, '), also written Masha'Allah, Maşallah (Turkey and Azerbaijan), Masya Allah (Malaysia and Indonesia), Maschallah (Germany), and Mašallah ( Bosnia), is an Arabic phrase that is used to express a feeling of awe or beauty regarding an event or person that was just mentioned. It is a common expression used throughout the Muslim world and non-Muslim Arabs to mean, in its literal sense, that “what God has willed has happened”. Etymology The triconsonantal root of ' is šīn-yāʼ- hamza "to will", a doubly- weak root. The literal English translation is "what God has willed",MashAllah meaning Islamic-dictionary.com the of God's will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Farghani
Abū al-ʿAbbās Aḥmad ibn Muḥammad ibn Kathīr al-Farghānī ( ar, أبو العبّاس أحمد بن محمد بن كثير الفرغاني 798/800/805–870), also known as Alfraganus in the West, was an astronomer in the Abbasid court in Baghdad, and one of the most famous astronomers in the 9th century. Al-Farghani composed several works on astronomy and astronomical equipment that were widely distributed in Arabic and Latin and were influential to many scientists. His best known work, ''Kitāb fī Jawāmiʿ ʿIlm al-Nujūmi'' (whose name translates to ''Elements of astronomy on the celestial motions''), was an extensive summary of Ptolemy's Almagest containing revised experimental data. Christopher Columbus, used Al Farghani’s calculations for his voyages to America. In addition to making substantial contributions to astronomy, al-Farghani also worked as an engineer, supervising construction projects on rivers in Cairo, Egypt. The lunar crater '' Alfraganus'' is na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omar Khayyam
Ghiyāth al-Dīn Abū al-Fatḥ ʿUmar ibn Ibrāhīm Nīsābūrī (18 May 1048 – 4 December 1131), commonly known as Omar Khayyam ( fa, عمر خیّام), was a polymath, known for his contributions to mathematics, astronomy, philosophy, and Persian poetry. He was born in Nishapur, the initial capital of the Seljuk Empire. As a scholar, he was contemporary with the rule of the Seljuk dynasty around the time of the First Crusade. As a mathematician, he is most notable for his work on the classification and solution of cubic equations, where he provided geometric solutions by the intersection of conics. Khayyam also contributed to the understanding of the parallel axiom.Struik, D. (1958). "Omar Khayyam, mathematician". ''The Mathematics Teacher'', 51(4), 280–285. As an astronomer, he calculated the duration of the solar year with remarkable precision and accuracy, and designed the Jalali calendar, a solar calendar with a very precise 33-year intercalation cycle''The Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abu Ma'shar Al-Balkhi
Abu Ma'shar al-Balkhi, Latinized as Albumasar (also ''Albusar'', ''Albuxar''; full name ''Abū Maʿshar Jaʿfar ibn Muḥammad ibn ʿUmar al-Balkhī'' ; , AH 171–272), was an early Persian Muslim astrologer, thought to be the greatest astrologer of the Abbasid court in Baghdad. While he was not a major innovator, his practical manuals for training astrologers profoundly influenced Muslim intellectual history and, through translations, that of western Europe and Byzantium. Life Abu Ma'shar was a native of Balkh in Khurasan, one of the main bases of support of the Abbasid revolt in the early 8th century. Its population, as was generally the case in the frontier areas of the Arab conquest of Persia, remained culturally dedicated to its Sassanian and Hellenistic heritage. He probably came to Baghdad in the early years of the caliphate of al-Maʾmūn (r. 813–833). According to An-Nadim's '' Al-Fihrist'' (10th century), he lived on the West Side of Baghdad, near ''Bab K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1264
The Great Comet of 1264 (C/1264 N1) was one of the brightest comets on record. It appeared in July 1264 and remained visible to the end of September. It was first seen during the evenings after sunset, but appeared in its greatest splendor in weeks afterward, when it became visible during the mornings in the northeastern sky, with the tail perceived long before the comet itself rose above the horizon. The head of the comet seemed like an obscure and ill-defined star, and the tail passed from this portion of it like expanded flames, stretching forth towards the mid-heavens to a distance of one hundred degrees from the nucleus. The comet of 1264 was described to have been an object of great size and brilliancy. The comet's splendor was greatest at the end of August and the beginning of September. At that time, when the head was just visible above the eastern horizon in the morning sky, the tail stretched out past the mid-heaven towards the west, or was nearly 100° in length. The ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptolemy
Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importance to later Byzantine, Islamic, and Western European science. The first is the astronomical treatise now known as the ''Almagest'', although it was originally entitled the ''Mathēmatikē Syntaxis'' or ''Mathematical Treatise'', and later known as ''The Greatest Treatise''. The second is the ''Geography'', which is a thorough discussion on maps and the geographic knowledge of the Greco-Roman world. The third is the astrological treatise in which he attempted to adapt horoscopic astrology to the Aristotelian natural philosophy of his day. This is sometimes known as the ''Apotelesmatika'' (lit. "On the Effects") but more commonly known as the '' Tetrábiblos'', from the Koine Greek meaning "Four Books", or by its Latin equivalent ''Qua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Kilwardby
Robert Kilwardby ( c. 1215 – 11 September 1279) was an Archbishop of Canterbury in England and a cardinal. Kilwardby was the first member of a mendicant order to attain a high ecclesiastical office in the English Church. Life Kilwardby studied at the University of Paris, then was a teacher of grammar and logic 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 premis ... there. He then joined the Dominican Order and studied theology,Lawrence "Thirteenth Century" ''English Church and the Papacy'' p. 146 and became regent at Oxford University before 1261,Knowles ''Evolution of Medieval Thought'' p. 288 probably by 1245.Leff ''Paris and Oxford Universities'' pp. 290–293 He was named provincial superior, provincial prior of the Dominicans for England in 1261,Greenway Fasti Ecclesiae A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
