41. History Of Astronomy: Persons (S) sacrobosco see johannes de sacrobosco (c.11951256); Sagan, Carl Edward (1934-1996);Saha, Meghnad (1893-1956). Biography (24 Aug 1999 disappeared) http://www.astro.uni-bonn.de/~pbrosche/persons/pers_s.html

History of Astronomy Persons History of Astronomy: Persons (S) Deutsche Fassung Sabine, Edward, Sir (1788-1883 ) Very short biography Sabliere (18th century) Very short biographical data Sacrobosco: see Johannes de Sacrobosco (c.1195-1256) Sagan, Carl Edward Saha, Meghnad (1893-1956) Biography (24 Aug 1999: disappeared) Short biographical data and bibliography Very short biography Saha Institute of Nuclear Physics , Calcutta, India Saha Memorial Lectures , since 1957 Find more about Saha with Alta Vista Saint Vincent, Gregorius [Gregory of Saint Vincent] (1584-1667) Biographical data and references Salomonovich, Alexander (b. 1916) Very short biography (Eric Weisstein's Treasure Trove) Salpeter, Edwin Ernest (b. 1924) Short biography, photo, references, and links (Bruce medal.) Sandage, Allan Rex (b. 1926) Short biography, photo, references, and links (Bruce medal.) Very short biography (Eric Weisstein's Treasure Trove) Very short biography Portraits Sands, Benjamin F. (1812-1883) Short biography and references From the Catholic Encyclopedia, 1913

42. History Of Astronomy: Persons (J) johannes de sacrobosco de Sacro Bosco; John of Holywood (c.11951256).Short biography and references (MacTutor Hist. Math. http://www.astro.uni-bonn.de/~pbrosche/persons/pers_j.html

History of Astronomy Persons History of Astronomy: Persons (J) Deutsche Fassung Jabir ibn Aflah [Gabir ben Aflah; Geber Hispalensis], al-Ishbili Abu Muhammad (c.1100-c.1160) Short biography, references and links (MacTutor Hist. Math.) Jabir Ibn Haiyan (?-803): see Ibn Haiyan Jacobi, Carl Gustav Jacob (1804-1851) Short biography and references (MacTutor Hist. Math.) Short biography (Eric Weisstein's Treasure Trove) Biography (23 Apr 1996: still under construction) Paper by C. G. J. Jacobi from Astronomische Nachrichten Links to WWW sources Jaeger, John Conrad (1907-1979) Biography Very short biography, references, archival sources and links Biographical data and bibliography Jansky, Karl Guthe (1905-1950) Short biography and references (Eric Weisstein's Treasure Trove) Short biography Very short biography Very short biography (Eric Weisstein's Treasure Trove) Very short biography Very short biography Jaschek, Walter (1912-1980) Jaschek and the Kuffner Observatory Jaschek und die Kuffner-Sternwarte (in German) Jastrow, Robert (b. 1925)

43. PSIgate - Physical Sciences Information Gateway Search/Browse Results johannes de sacrobosco Born about 1195 in Holywood, Yorkshire, England Died1256 in johannes de sacrobosco Editions of the Tractatus de Sphaera . http://www.psigate.ac.uk/roads/cgi-bin/search_webcatalogue.pl?term1=Sacrobosco&l

44. PSIgate - Physical Sciences Information Gateway Search/Browse Results Pages sacrobosco Calendar Reform Mathematical Techniques Armillary SphereSundials Books General Pages Home Index johannes de sacrobosco sacrobosco (d. http://www.psigate.ac.uk/roads/cgi-bin/search_webcatalogue.pl?term1=personalitie

45. History Of Mathematics: Europe Pisa (Fibonacci) (11701240); Alexandre de Villedieu (c. 1225); John ofHalifax (sacrobosco) (c. 1300-1358); John of Meurs (johannes de Muris) (c. http://aleph0.clarku.edu/~djoyce/mathhist/europe.html

Europe Web sites relevant to the History of Mathematics in Europe Joseph Dauben's hypermedia program The Art of Renaissance Science . See the Science and Engineering Television Network for mirror sites and more information. Included in the hypermedia program are discussions about Galileo and references to Brunelleschi Alberti Francesca Leonardo da Vinci , and Francis Bacon The birthplace map in Mathematical MacTutor's History of Mathematics archive See Greece for mathematicians writing in Greek, and see the general chronology for European mathematicians after 1500. Mathematicians through 1500 Marcus Terentius Varro (116-27 B.C.E.) Balbus (fl. c. 100 C.E.) Anicius Maulius Severinus Boethius (c. 480-524) Flavius Magnus Aurelius Cassiodorus (c. 490-c. 585) Bede (673-735) Alcuin of York (c. 735-804) Gerbert d'Aurillac, Pope Sylvester II (c. 945-1003) Adelard of Bath (1075-1164) John of Seville (c. 1125) Plato of Tivoli (c. 1125) Girard of Cremona (1114-1187) Robert of Chester (c. 1150) Robert Grosseteste (c. 1168-1253) Leonardo of Pisa (Fibonacci) (1170-1240) Alexandre de Villedieu (c. 1225)

46. New Dictionary Of Scientific Biography sacrobosco, johannes de St. John, Charles Edward Saint Vincent, GregoriusSamarqand?, Shams alD?n Mu?ammad Ibn Ashraf al- ?usayn? al- http://www.indiana.edu/~newdsb/astor.html

Make Suggestions Astronomical Sciences Abbe, Cleveland Abetti, Antonio Abney, William de Wiveleslie Abraham Bar ?iyya Ha-Nasi Ab?'l-Waf al-B?zj?n?, Mu?ammad Ibn Mu?ammad Ibn Ya?y? Ibn Ism?l Ibn al- ?Abb?s Acyuta Pira?i Adams, John Couch Adelard of Bath Ailly, Pierre d' Airy, George Biddell Aitken, Robert Grant Albrecht, Carl Theodor Alfonso El Sabio Alzate y Ramírez, José Antonio Anaximander Andoyer, Henri André, Charles Louis François Angelus, Johannes Ångstrüm, Anders Jonas Anthelme, Voituret Antiphon Antoniadi, Eugène M. Apian, Peter Arago, Dominique François Jean Aratus of Soli Argelander, Friedrich Wilhelm August Argoli, Andrea Aristarchus of Samos Aristotle Aristyllus Arrest, Heinrich Louis d' Asada G?ry? Autolycus of Pitane Auwers, Arthur Julius Georg Friedrich von Auzout, Adrien Baade, Wilhelm Heinrich Walter Babinet, Jacques Backlund, Jüns Oskar Bailey, Solon Irving Bailly, Jean-Sylvain Baily, Francis Banachiewicz, Thaddeus Ban? M?s? Baranzano, Giovanni Antonio

47. List Of Scientists By Field Translate this page sacrobosco, johannes de. Sage, Balthazar-Georges. Sage, Balthazar-Georges.Sagnac, Georges MM. Saha, Meghnad. Saint Vincent, Gregorius http://www.indiana.edu/~newdsb/s.html

Sabatier, Armand Sabatier, Armand Sabatier, Armand Sabatier, Paul Sabin, Florence Rena Sabin, Florence Rena Sabine, Edward Sabine, Edward Sabine, Paul Earls Sabine, Wallace Clement Ware Saccheri, Girolamo Sacco, Luigi Sachs, Julius von Sacrobosco, Johannes de Sage, Balthazar-Georges Sage, Balthazar-Georges Sagnac, Georges M. M. Saha, Meghnad Saint Vincent, Gregorius Saint Vincent, Gregorius Sakata, Shoichi Sakharov, Vladimir Vladimirovich Saks, Stanislaw Sala, Angelo Sala, Angelo Salernitan Anatomists Salernitan Anatomists Salisbury, Rollin Daniel Salisbury, Rollin Daniel Sallo, Denys de Salmon, George Salomonsen, Carl Julius Salomonsen, Carl Julius Salviani, Ippolito Salviani, Ippolito Samoylov, Aleksandr Filippovich Samoylov, Aleksandr Filippovich Samoylov, Aleksandr Filippovich Samoylov, Aleksandr Filippovich Sampson, Ralph Allen Sanarelli, Giuseppe Sanchez, Francisco Sanchez, Francisco Sanderson, Ezra Dwight Sanderson, Ezra Dwight Sanio, Karl Gustav Santorini, Giovanni Domenico Santorini, Giovanni Domenico Santorio, Santorio Santorio, Santorio Santorio, Santorio

48. Ptolemy: Iconography Of His Portrait - Ptolémée: Iconographie De Son Portrait du portrait de Ptolémée. 1500 johannes de sacrobosco, Textus de Sphera. http://www.er.uqam.ca/nobel/r14310/Ptolemy/Sacrobosco.html

Ptolemy Ptolemaeus Iconography of Ptolemy's Portrait 1500 Johannes de Sacrobosco, Textus de Sphera image to get I Anoymous, Ptolemy with Urania and Astronomia, 1500, wood engraving, dimensions unknown, in Johannes de Sacrobosco, Textus de Sphera, Paris, 1500, frontispiece. Anonyme, 1500, gravure sur bois, dimensions inconnues, dans Johannes de Sacrobosco, Textus de Sphera, Paris, 1500, frontispice. "A woodcut of Ptolemy with Urania and Astronomia (with astrolabe and armillary sphere) under a schematized celestial sphere is found in the frontispiece of Johannes de Sacrobosco, Textus de Sphera, Paris, 1500 Images can be found in Taub 1993, opposite to the title page." (Robert H. van Gent) Textus de Sphera, Paris, 1500 Collaboration from Robert H. van Gent Several Ptolemy portraits can found in this book: Sphaera Mundi - Astronomy Books 1478-1600, Whipple Museum of the History of Science, Cambridge, 1994. Page 35 has a woodcut of Ptolemy with Urania and Astronomia (with astrolabe and armillary sphere) under a schematized celestial sphere from the frontispiece of the 1516 Paris edition of Johannes de Sacrobosco's Textus de Sphera Collaboration Robert H. van Gent

49. Johannes Regiomontanus: Calendar Diagram showing eclipses of the moon and the sun from sacrobosco s Sphaera mundi treatise by johannes de Sacro Bosco, or John of Holywood (c.11951256), http://special.lib.gla.ac.uk/exhibns/month/aug1999.html

Special Collections Library Home Special Collections Catalogues Main Library ... Course Material Book of the Month August 1999 Johannes Regiomontanus: Calendar Printed in Venice by Erhard Ratdolt, 9 August 1482 Euing BD7-f.13 with Sacro Bosco's Sphaera mundi , Alchabitius' Libellus isagogus and Ibn Ezra's De luminaribus et diebus creticis bound in The solar eclipse of August 11, the recent anniversary of thirty years since the first man stepped on the moon, plus our increasing calendrical obsession as the new millennium approaches, makes our first book of the month a volume of four astronomical works bound together a particularly apt choice. Instrument with two moveable volvelles to show the motion of the moon Printed calendars and almanacs became extremely popular in the fifteenth century and provided ordinary people with the basic knowledge required to plan their daily routines. The market for calendars was first tapped by Gutenburg, who published a calendar which calculated the times of new and full moons and planetary positions, with readings every two to three days. All earlier calendars, however, were superseded by those of Regiomontanus (1436-1476) whose calculations were far more accurate; he recorded several eclipses of the moon and his interest led him to make the important observation that longitude at sea could be determined by calculating lunar distances. Outstanding also is his observation of a comet in 1472, 210 years before it was "first" seen by Halley.

50. Sacrobosco, Johannes De - Columbia Encyclopedia® Article About Sacrobosco, Joha Thomas BrowneKing Solomon de Umbris Idæarum, which Chicus Asculanus, in his Comment uponJohannes de sacrobosco, would make us believe he saw in the Library of the Duke http://columbia.thefreedictionary.com/Sacrobosco, Johannes de

Domain='thefreedictionary.com' word='Sacrobosco, Johannes de' Your help is needed: American Red Cross The Salvation Army join mailing list webmaster tools Word (phrase): Word Starts with Ends with Definition subscription: Dictionary/ thesaurus Computing dictionary Medical dictionary Legal dictionary Financial dictionary Acronyms Columbia encyclopedia Wikipedia encyclopedia Hutchinson encyclopedia Sacrobosco, Johannes de 0.03 sec. Page tools Printer friendly Cite / link Email Feedback Sacrobosco, Johannes de , or John of Hollywood, Algorismus, a study of arithmetic; a treatise on the calendar; and the most popular medieval introductory textbook on astronomy, the Tractatus de sphaera. Mentioned in References in classic literature No references found No references found Columbia browser Full browser Sackville-West, Vita Saco sacrament sacramental ... sacrifice Sacrobosco, Johannes de sacrum Sacy, Antoine Isaac, Baron Silvestre de Sadat, Anwar al- saddle ... Sacrobosco (crater) Sacrobosco, Johannes de sacrococcygeal sacrococcygeal sacrococcygeal muscle Sacrococcygeal Teratoma ... sacrum Word (phrase): Word Starts with Ends with Definition Free Tools: For surfers: Browser extension Word of the Day NEW!

51. Slide #261 Monograph johannes de sacrobosco, latinized for John Halifax of Holywood, a teacher ofmathematics and astronomy at the University of Paris during the 13th century. http://www.henry-davis.com/MAPS/LMwebpages/261mono.html

Slide #261 TITLE: Tractatus de Sphaera Mundi DATE: AUTHOR: Johannes de Sacrobosco [John Halifax of Holywood] DESCRIPTION: A fitting end to this volume, this map is from a treatise that is often cited as atypical of the medieval period because it is derived entirely from the writings of earlier scholars, leaning especially on Ptolemy's astronomical work the Almagest. However, even without the addition of the new discoveries, it achieved a great popularity that lasted well through the Renaissance, for after the invention of printing no fewer than 65 editions succeeded each other in rapid order and occupied the attentions of the foremost scientific printers of the time. Its popularity may be explained not only by its dependence on established authority, but on its slight bulk and the simplicity to which elaborate theories were reduced. Its four chapters deal with the terrestrial globe, circles, the movements of the stars and with the planets. It was doubtless this brevity which recommended it to seafaring folk, for it was known to have been one of the standard text books of the Portuguese seamen during their great age of exploration. Johannes de Sacrobosco, latinized for John Halifax of Holywood, a teacher of mathematics and astronomy at the University of Paris during the 13th century. He was probably from Yorkshire, England, educated at Oxford, and migrated to Paris in 1221, where he compiled his

52. Index Of Late Medieval Maps 261, Tractatus de Sphaera Mundi, johannes de sacrobosco, 13001500. 261A,Tractatus de Sphaera Mundi, johannes de sacrobosco, 1300-1500 http://www.henry-davis.com/MAPS/LMwebpages/LML.html

Index of Cartographic Images Illustrating Maps of the Late Medieval Period 1300 - 1500 A.D. Time Chart of Medieval Cartography Slide # Title: Cartographer: Date: The Countries of the Southwestern Sea Chu Ssu-Pen/Lo Hung-hsien Chinese Map Legend Chu-Ssu-Pen and Lo Hung-hsien 227.A The Countries of the Southwestern Sea Southern Africa Chu Ssu-Pen/Lo Hung-hsien The General Map of China Chu-Ssu-Pen and Lo Hung-hsien The General Map of China Chu-Ssu-Pen and Lo Hung-hsien Hsi-Pei Pi Ti-Li T'u Chu Ssu-Pen Hsi-Pei Pi Ti-Li T'u Chu Ssu-Pen Hsi-Pei Pi Ti-Li T'u Chu Ssu-Pen Vesconte world map Pietro Vesconte Vesconte world map Pietro Vesconte ca. 1320 Vesconte world map Pietro Vesconte Vesconte world map Pietro Vesconte Vesconte world map Pietro Vesconte Vesconte world map (re-oriented with North at the top) Pietro Vesconte Vesconte world map Pietro Vesconte World Map from Marino Sanudo's Liber secretorum fidelium crucis Pietro Vesconte ca. 1321 Vesconte world map, detail, Europe Pietro Vesconte World Map from Marino Sanudo's Liber secretorum fidelium crucis Pietro Vesconte ca. 1321

53. Celebrating The Liturgy's Books 60v61 A 14th century Italian manuscript of johannes de sacrobosco, Computuswith a diagram of the celestial bodies. Plimpton MS 170, f. http://www.columbia.edu/itc/music/manuscripts/computus.html

Home Web Exhibit Music Clips Readings ... Resources Computus Computus in its simplest definition is the art of ascertaining time by the course of the sun and the moon. This art could be and was a theoretical science, such as that explored by Johannes of Sacrobosco in his De sphera a science based on arithmetical calculations and astronomical measurements derived from use of the astrolabe or, increasingly by the end of the 13th century, the solar quadrant. In the context of the present exhibit, however, computus is understood mainly as the practical application of these calculations. To reckon time in the broadest sense and to determine the date of Easter became one and the same effort. And for most people, understanding the problem of correct alignment of solar, lunar, yearly and weekly cycles to arrive at the date of Easter was simply reduced to a question of "when?" rather than "why?". The result was a profusion of calculation formulae, charts and memory devices. Accompanying these handy mechanisms for determining the date of Easter were many other bits of calendrical information that faith, prejudice and experience leveled to the same degree of acceptance and necessity: the lucky and the unlucky days for travel or for eating goose; the prognostications of rain or wind; the times for bloodletting; the signs of the zodiac; the phases of the moon; the number of hours of sunshine in a given day; the feasts of the saints; the Sundays in a perpetual

54. 1 Ménestrel Histoire Des Sciences Et Des Techniques Moyen Age Middle Ages Histo Translate this page Honorius Augustodunensis , Hunayn Ibn Ishaq , Hyginus , Isidorus de Sevilla,johannes de sacrobosco , johannes Scotus Eriugena , Johannitius (? http://www.ccr.jussieu.fr/urfist/menestrel/indexsci.htm

Histoire des sciences et des techniques S'orienter sur le web Les domaines de l'histoire des sciences et des techniques S'orienter sur le web Portails et listes de liens Thomas B. Settle, [ IMSS Firenze page Arts and science of the Middle Ages and Renaissance Medieval Sourcebook ... Internet History of Science Sourcebook sont de précieux auxilliaires. Ils sont malheureusement tenus à jour de façon irrégulière comme le laisse penser cette réflexion un peu désabusée de l'auteur en mars 2001 : "this list is now quite out dated. Many links are dead, and there are hundreds of additional resources around. Manual maintence of this list long ago became unfeasible. I do intend to update it, once I have located good links management software." Le vieux Labyrinth ORB The Online Reference Book for Medieval Studies de Bob Peckham, le

55. 4 Ménestrel Histoire Des Sciences Et Des Techniques Au Moyen Age Ménestrel His Translate this page Jean de sacrobosco son Algorisme Gallica et plusieurs éditions anciennes quod composuit johannes de Muris et fuit scriptum Parisius per manus Johannis http://www.ccr.jussieu.fr/urfist/menestrel/medsci2.htm

Histoire des sciences et des techniques Pour les page correspondante Textes scientifiques et techniques antiques Anicii Manlii Torquati Severini Boetii de institutione arithmetica libri duo ; De institutione musica libri quinque ; accedit geometria quae fertur Boetii / e libris manu scriptis edidit Godofredus Friedlein , Lipsiae : B. G. Teubneri, 1867, VIII-492 p. [Gallica] Frontin, Stratagemata [The Classics page] Varron, De agricultura [The Classics page] Epitoma rei militaris [The Classics page] Vitruve, De architectura [The Classics page] Nicomachi Gerasini arithmeticae libri duo , Parisiis : in officina Christiani Wecheli, 1538, 77 p. [en grec]. [Gallica] Alcuin Propositiones ad acuendos juvenes The Classics Page Raban Maur, De rerum naturis ou De universo transcription la Bibliotheca augustana Al-Sijzi's Treatise on Geometrical Problem Solving Les oeuvres de Gerbert d'Aurillac et de quelques autres dans Nicolas Bubnov

56. Ptolemaic Astronomy In The Middle Ages Treatises on the sphere, of which johannes de sacrobosco s (ca. 1220) became thestandard, set out for students the structural elements of the geocentric http://www.princeton.edu/~hos/mike/texts/ptolemy/ptolemy.html

Ptolemaic Astronomy in the Middle Ages M. S. Mahoney (for the Dictionary of the Middle Ages, ed. J.R. Strayer) Ptolemaic astronomy, that is, the astronomy of Claudius Ptolemy 's Mathematical Compilation, Almagest Ptolemy's grand system had neither successor nor rival until the publication of Nicholas Copernicus De revolutionibus orbium coelestium in 1543. The bulk of the technical astronomy during the intervening 1400 years, both in the Middle East and in Europe, was devoted to the computation of tables and the design of instruments that translated Ptolemy's theorems and calculations into almanacs, horoscopes, and planetaria. While Islamic astronomers carried out some systematic observations aimed at filling gaps left in Ptolemy's work, especially in his treatment of such long-term motions as precession, Europeans concentrated on making the system accessible and useful to a variety of users. Before the establishment of the university curriculum in Europe, Ptolemaic astronomy circulated separately from the geocentric world-picture on which it was predicated and from which it had initially taken its task. In the Timaeus (ca.

57. Roman To Julian Conversion: Analysis A.U.C. 746 = 8 B.C. this story originates with the medieval computist johannes de sacrobosco.In his de Anni Ratione, published in 1232, sacrobosco claimed that the http://www.geocities.com/christopherjbennett/ptolemies/chron/roman/008bc.htm

A.U.C. 746 = 8 B.C. The Augustan reform, which finally aligned the Roman calendar with the modern Julian calendar and set the period and phase of the intercalary cycle to that of the Julian calendar, was promulgated in this year. This result was determined by J. J. Scaliger, De E mendatione T emporum 159, 238 in 1583. He noted that Suetonius, Augustus , recorded that Sextilis was renamed "Augustus" at the same time, and that Censorinus 22.16 dates that event to the emperor's 20th year, the consulate of M. Censorinus and C. Asinius Gallus, i.e. A.U.C 746 = 8, as does Dio Cassius 55.6.6 The story is, of course, not quite so cut and dried. There are indications that Sextilis may have been renamed earlier. Livy, Periochae , dates the event to A.U.C. 727 = 27. Macrobius, Saturnalia , quotes the actual senatusconsultum for the change, which justifies it in terms of Augustus' conquest of Egypt and the ending of the civil wars, possibly implying that it was passed not too long after these events. He further says that the motion was passed by a plebiscite under the tribune Sex. Pacuvius, and Dio Cassius 53.20.2-3

58. Los Símbolos Astrológicos Translate this page uno de los textos mas difundidos era el Algorismo de johannes de sacrobosco . Se usaba el tratado de sacrobosco que incluía teoría planetaria y http://www.geocities.com/Athens/Troy/1277/espana/espana.htm

var width = "200"; var border = "1"; var offsetx = 15; var offsety = 15; Los inicios en la Península Ibérica Sphaera mundi y Tratado de los Planetas Europa medieval Alfonso X el Sabio Escuela de Traductores de Toledo Quadrivium Elementos Algorismo Theorica planetarum alfonsinas astrolabio Tratado de Alcabitius, traducido por Juan de Sevilla, el Liber quadipartitum (Tetrabiblos) de Ptolomeo y el Centiloquium Lunario sexagenario De morbo foedo el occulo... De diebus naturalibus earumque equatione Opus praeclaris e imaginibus astrologicis Iudicium universale de portentis presagiis et ostentis rerumque admirabilium ac solis et lunae defectibus et cometis Pag. 2

59. AIP Niels Bohr Library The sphere of johannes de sacrobosco (Latin text) The sphere of sacrobosco (Englishtranslation) The commentary of Robertus Anglicus (Latin text) http://www.aip.org/history/catalog/16316.html

If you are not immediately redirected, please click here My List - Help Browse Books Archival Resources Archival Finding Aids Photos Browse FAQs Past Searches History Home Search: Author Subject Title Journal/Newspaper Title Series Computer File (Software) Title Video Title Refine Search AIP Niels Bohr Library Item Information Holdings Subjects Astronomy Early works to 1800. Browse Catalog by title: The sphere of Sacrob... MARC Display The sphere of Sacrobosco and its commentators. [Chicago] : University of Chicago Press, [1949] [1949] Call Number: N8 THO(t) Description: 496 p. ; 23 1/2 cm. Added Author: Sacro Bosco, Joannes de, fl. 1230. Sphaera mundi. Robertus, Anglicus, fl. 1272. Thorndike, Lynn, 1882-1965. Contents: The sphere of Johannes de Sacrobosco (Latin text) The sphere of Sacrobosco (English translation) The commentary of Robertus Anglicus (Latin text) The commentary of Robertus Anglicus (English translation) The Commentary ascribed to Michael Scot (Latin text) The commentary by Cecco d'Ascoli (Latin text) Anonymous commentary or glosses Appendixes. Copy/Holding information Location Collection Call No.

60. Sacrobosco In Spanish. John of Holywood or johannes de sacrobosco, his Latin name, was an astronomy andmathematics professor in the University of Paris in the thirteenth century. http://www.ivh.au.dk/kollokvier/marta_gmez_martnez_18_09_03.dk.html

Institutkollokvium ved Institut for Videnskabshistorie Torsdag d. 18. 9. kl. 15 i koll. G4, Institut for Matematiske Fag PhD student Marta Gómez Martínez Universitat Pompeu Fabra, Barcelona Sacrobosco in Spanish. Abstract My PhD Dissertation, Sacrobosco in Spanish, belongs to a research project financed by the Spanish Ministry of Science and Technology whose title is Translation and science: genesis of the Castilian (Spanish) as language of science . This project focuses on the history of medicine and the exact sciences, in particular astronomy, during the Middle Ages in Spain; therefore, my current work deals with the history of the Castilian language for specific purposes, the history of translation and the history of astronomy. John of Holywood or Johannes de Sacrobosco, his Latin name, was an astronomy and mathematics professor in the University of Paris in the thirteenth century. Due to his academic work, he wrote, among other textbooks in Latin, one on some basic notions about astronomy and cosmography based on the ptolemaic tradition: De Sphaera Mundi. It was so clear and elementary that it soon became the most used textbook in the majority of the western European universities from the thirteenth to the seventeenth century, being translated to several languages, such as Spanish. Focusing on the fifteenth and sixteenth century Spanish translations of De Sphaera Mundi, my dissertation will consist of a transcription or critical edition of the texts, most of them unpublished, in order to be able to compare the scientific discourse and study the astronomical terms used to translate the Latin original into Spanish.

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