21. Biografie john of holywood detto Sala,Angelo Salam, Abdus Saluzzo di Monesiglio, Angelo Santorio, Santorio http://galileo.imss.firenze.it/milleanni/cronologia/biografie/indice.html

Indice delle Biografie A B C D ... Colucci, Cesare Commandino, Federico Conversi, Marcello Corbino, Orso Mario Cornelio, Tommaso Corti, Alfonso ... [top] Quattromani, Sertorio Quercetano (Duschesne, Joseph) [top] Ramazzini, Bernardino Rasetti, Franco Rasori, Giovanni ... Inizio

22. Christoph Clavius Opera Mathematica Third Volume Commentary on john of holywood s Spheres - Table of contents -Page ii, Third Volume - Commentary on john of holywood s Spheres - Table of http://mathematics.library.nd.edu/clavius/cgi-bin/page_turner.cgi?output_main=1&

23. Christoph Clavius Opera Mathematica Third Volume Commentary on john of holywood s Spheres - Index - Page 336,Third Volume - Commentary on john of holywood s Spheres - Index - Page 337 http://mathematics.library.nd.edu/clavius/cgi-bin/page_turner.cgi?output_main=1&

24. Irish Abroad - Irish American News The name translates as ‘john of holywood’ and he is claimed by one later writer,called ‘Robert the Englishman’, as being English. http://www.irishabroad.com/news/irishpost/heritage/mystery.asp

ROOTS TRAVEL IRISH WORLD IRISH STUDIES ... COMMUNICATE Regulars Log In Username Password Forgot Password? Regular Features IRISH STORY IrishAmerica Mag ... Irish Heritage ONLINE BOOKINGS Hostels Irish Hotels Tours Irish Travel Packages ... Irish Post The mystery of Sacrobosco. One of the most intriguing historical mysteries was whether Ioannes de Sacrobosco, or John of Holywood, was Irish, English or a Scot. Ioannes de Sacrobosco was the author of a handful of widely read medieval texts on astronomy and mathematics. For hundreds of years his name was a household word to any student of the liberal arts - that is arithmetic, geometry, astronomy, grammar, rhetoric, logic and music. Almost all the dates for Sacrobosco are guesses except for one: we know that on June 5, 1221, he was appointed as a master at the University of Paris and soon after became Professor of Mathematics and Astronomy. He was one of the pioneers of introducing into Western Europe the new Arabic learning on mathematics, astronomy and medicine. At the time he joined the University of Paris he wrote De Algorithmus in which he discussed new methods of calculation. Systems which, today, we take for granted. He then wrote Tractatus de Sphaera Mundi, regarded for a time as the major work on astronomy and the theory of planets, constellations and eclipses.

25. Irish Abroad - Irish American News One of the most intriguing historical mysteries was whether Ioannes de Sacrobosco,or john of holywood, was Irish, English or a Scot. more http://www.irishabroad.com/news/irishpost/heritage/

ROOTS TRAVEL IRISH WORLD IRISH STUDIES ... COMMUNICATE Regulars Log In Username Password Forgot Password? Regular Features IRISH STORY IrishAmerica Mag ... Irish Heritage ONLINE BOOKINGS Hostels Irish Hotels Tours Irish Travel Packages ... Irish Post Join IrishCircle for full access to Irish Post content below The mystery of Sacrobosco One of the most intriguing historical mysteries was whether Ioannes de Sacrobosco, or John of Holywood, was Irish, English or a Scot. more... (Irish Post) 10 Dec 2003 From Pit Boy to the King of Song Born in Leigh, Lancashire of humble Irish parents, Tom Burke rose to fame as one Ireland’s greatest tenors as John D. Vose recalls. more... (Irish Post) 03 Apr 2002 The Gathering of the Clan Conor O’Brien is Prince of Thomond, 18th Baron Inchiquin, 10th Baronet of Leamaneh, a direct descendant of Brian Boru and head of the O’Brien clan world-wide. He spoke to Veronica Blake about the heavy responsibilities of his title and why he has chosen not to walk away from the challenge. more...

26. AIM25: Thesaurus Personal Names: J john of holywood Holywood John of John of Halifax Halifax John of John ofHolywood Sacro Bosco Johannes De d 1244 or 1256 mathematician and http://www.aim25.ac.uk/search/thesaurus/persons/list9.htm

Personal names index: J A B C D ... Z Saint Jerome Saint Joan of Arc Johannes De Sacro Bosco John of Holywood John of Halifax John of Fidanza Saint Bonaventure John of Halifax Johannes De Sacro Bosco John of Holywood John of Holywood Johannes De Sacro Bosco John of Halifax Jon Jon Flavius Justinianus Petrus Sabbatius A B C D ... Z

27. AIM25: University College London: De Sacro Bosco's 'De Sphera' And Other Tracts Administrative/Biographical history Johannes De Sacro Bosco (john of holywood,or Halifax) was probably born at Halifax, Yorkshire, and is said to have http://www.aim25.ac.uk/cgi-bin/search2?coll_id=1612&inst_id=13

28. K's Origami : History Of Origami Mundi, which was written by Johannes de Sacrobosco (john of holywood) in 13thcentury and printed over 60 times through the middle of 17th century, http://origami.ousaan.com/library/historye.html

K's Origami Fractional Library History of Origami Before Origami We know very little about the origin of origami. Some say origami originated in China around 2000 years ago. But it is probably wrong. This opinion is based on the conjecture that origami started right after the invention of paper, for which we have no evidence. The paper of Former Han dynasty shows no trace of origami. The Chinese character for paper, zhi, originally stood for writing material made of silk. The origin of the Japanese word for paper, kami, is said to be birch tree, kaba, or strips of wood or bamboo, kan. Both of them were also writing material. These suggest that paper was primarily writing material, not folding. Others say origami originated from Japan in Heian era. Again, it is probably wrong. They refer to a story of Abe-no Seimei who made a paper bird and turned it to a real one, or another story about Fujiwara-no Kiyosuke who sent his ex-girlfriend a fake frog. There is no reason, however, for believing that they folded paper to make them. In Japan, we use wrapping paper called tatogami or tato. Today we mainly wrap kimono with it. It actually dates back to Heian era. But it is by no means an example of origami, since it is folded just squarely.

29. 1253: Information From Answers.com The decimal system is introduced into England by john of holywood (better knownas Johannes de Sacrobosco) b. Holywood, England, c. 1195, d. Paris, 1256. http://www.answers.com/topic/1253

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping In the year Communication The Sorbonne University at Paris, France, is founded. See also 1244 Communication 1386 Communication Earth science Commissioned by Louis IX, Flemish Franciscan monk Willem van Ruysbroeck (Wilhelm von Rubruck) [b. c. 1210, d. c. 1270] explores the road to Karakorum (Mongolia), then capital of the Mongol Empire. The capital will move to Khanbalik (Beijing, China) in 1267. See also 1245 Earth science 1271 Communication Mathematics The decimal system is introduced into England by John of Holywood (better known as Johannes de Sacrobosco) [b. Holywood, England, c. 1195, d. Paris, 1256]. See also 1202 Mathematics Transportation According to some sources, a canal with a simple lock is built in Sparendam, Holland (the Netherlands); if so, it would be the first lock in Europe. See also 983 Transportation 1373 Transportation Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); For broader historical context, see

30. Paradigm, No. 16 (May, 1995) Sacrobosco (john of holywood) in his manuscript The Art of Nombryng (1488) extendedthe table to 10 x 10 and included all the reversals in the square http://w4.ed.uiuc.edu/faculty/westbury/Paradigm/denniss.html

Paradigm , No. 16 (May, 1995) John Denniss Chessins, Chignal Smealey, Chelmsford, Essex CM1 4TN In this article two particular features of the presentation of multiplication tables (or, more accurately, the multiplication table, as it was always referred to) in textbooks are considered namely, the range of numbers to be included in the table and the organisation of the results on the page. The texts in question are all in English and cover the period from around 1300 (when what is thought to be the earliest arithmetical manuscript in English was written) to 1900, after which separate textbooks tended to be written for the Primary and Secondary schools, the latter not usually including tables at all and the former often giving results in partial form at different stages. (However, there was, and still is, considerable variation.) In all some 45 texts are considered. Dates in the body of this text refer to year of original publication. commutative principle (e.g. 3 x 4 = 4 x 3) and thus require children to learn nearly twice as many results as they need. It is therefore startling, perhaps, to find this principle recognised in the very earliest text The Crafte of Nombrynge (c. 1300):

31. IRAI: History Of Astrology: Spindle In Time, The Timeline 13th Century john of holywood, called Sacrobosco, writes Sphaera Mundi, an earlyEnglish textbook of spherical astrology. c12141294 CE Roger Bacon, http://www.indigoray.net/timeline.html

Click on the CENTURY below to go to that marker in the timeline 3000-2000 B.C.E. 2000-1000 B.C.E. 1000-C.E 1-100 C.E ... New Renaissance B.C.E = Before Common Era (before 1 C.E also known as A.D.) C.E = Common Era (also known as A.D.) Click on the Links to open informational window about that topic c.2872 B.C.E. Sargon of Agade uses astrologer priests for purposes of predictions 2079-1960 B.C.E Ziggarut at Urak, Ur and Babylon, ancient observatories that allowed the ability to record the movements of the celestial sky. c.1300-1236 B.C.E. Ramses II fixes the CARDINAL points, Aries, Libra,Cancer and Capricorn c.668 B.C.E. Earliest surviving horoscope 572-490 B.C.E. Pythagoras theory:what embodies greater wisdom=numbers, what embodies great beauty=harmony. The source of planetary aspects as we know today. 428-348 B.C.E.

32. 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)

33. History Of Astronomy: What's New At This Site On July 22, 1999 Johannes de Sacrobosco de Sacro Bosco; john of holywood (c.11951256).Short biography. John XXI, Pope orig. Peter Juliani (1215(?)-1277) http://www.astro.uni-bonn.de/~pbrosche/new/new990722.html

History of Astronomy What's new History of Astronomy: What's new at this site on July 22, 1999 Some URLs have been updated. Welcome / About Site map (complete Table of Contents) updated Citation Index updated Dead Links updated Acknowledgements updated History of astronomy Persons A Alenio, Giulio (1582-1644) Short biography and references From the Catholic Encyclopedia, 1913 Alexandre, Dom Jacques (1653-1734) Short biography and reference From the Catholic Encyclopedia, 1913 Arnaldus Villanovanus [Arnaldus of Villanueva] (1235/1240-1312/1313) Short biography and references From the Catholic Encyclopedia, 1913 B Bardesanes [Bar-Daisan] (154(164?)-222) Short biography and references From the Catholic Encyclopedia, 1913 Bouvet, Joachim (?-1732) Short biography and references From the Catholic Encyclopedia, 1913 C Castner [Kastner], Caspar (1655-1709) Short biography and references From the Catholic Encyclopedia, 1913 Cauchy, Augustin Louis [Augustin-Louis] (1789-1857) Short biography and references From the Catholic Encyclopedia, 1913

34. Science: History & Culture Iohannes de Sacrobosco (john of holywood). Sacrobosco Biblical metaphors ofknowledge in early modern Europe. Week 3b. MIND READING EXPERIMENT HOW DOES http://www.cc.gla.ac.uk/courses/science/shc/shc2004.htm

Science Studies 2004-2005 Level 1 Semester 2 Course Code: 6DXU What are the foundations of knowledge, and how reliable is what we believe? a level 1 core course, adopts an historical viewpoint and enrols philosophy and sociology to seek answers to these questions. Consisting of a series of lectures, self-study exercises and seminars, the course teaches not what to believe, but the bases of rational belief and informed judgement click on underlined links below to go to lecture notes or self-study page SELF-STUDY PAGES: Reasoned Thinking I Reasoned Thinking II Bibliography of Science Studies books MARKED ESSAY 2 AVAILABLE FROM GENERAL OFFICE CLASS SCHEDULE AND LINKS: WEEK LECTURE (2 x 1 hr per week) SEMINAR (usually 1 hr) week of 24 Jan 2005 1a. Overview b. Early sources of knowledge NO SEMINAR THIS WEEK week of 31 Jan From Greeks to monks Theories and personalities: the scientific revolution Elements of observation week of 7 Feb The scientific revolution II: winning hearts and minds Complexities of experiment week of 14 Feb Natural Scientists and Inventors Darwin's revolution Film: Do You Believe in Magic?

35. Special And Named Printed Collections In The National Library Of The earliest item in the collection is Opus sphericum (Cologne, 1501) written byJoannes de Sacro Bosco (john of holywood or Halifax) in the 13th century, http://www.nls.uk/catalogues/online/snpc/list.cfm?letter=F

36. CHRONOLOGY – Some Selected Dates In The Development Of Sundials And Solar Astro 1220, At the University of Paris, john of holywood (Sacrobosco) writes Sphaeramundi (spheres of the world) introducing Ptolemy’s Almagest to Europe and http://www.sundialsoc.org.uk/glossary/chronology/chronology.htm

CHRONOLOGY – some selected dates in the development of sundials and solar astronomy Date Development 9000 BC to 8000 BC The Maya make astronomical inscriptions and constructions in Central America. A marked bone (possibly) indicating months and lunar phases in use in Ishango (Zaire) 4228 BC to 2773 BC The Egyptians institute a 365-day calendar. The start of the year, coinciding with the annual Nile floods, is linked to the rising of Sirius (the Dog Star) in line with the sun. 1500 BC to 1450 BC L-shaped sundials used in Egypt. 1450 BC to 1400 BC Stonehenge achieves the form known today. 600 BC to 590 BC Sundials are used in China and the Chinese text "Arithmetic classic of the gnomon and the circular paths of the heaven" contains a version of the Pythagorean theorem. 585 BC Thales of Miletus (Turkey) correctly predicts a solar eclipse. 520 BC to 510 BC Anaximander introduces the sundial to Greece (previously used in Mesopotamia, Egypt and China. He also produces a cylindrical (sic) model of the Earth. 500 BC to 490 BC The Pythagoreans (Greece) introduce a spherical model of the Earth.

37. Oxford Mathematics And Mathematicians - About: The Mathematical Institute, Unive The first mediaeval Oxford mathematician of note was john of holywood or John deSacro Bosco, as he was usually called. He died in 1244. http://www.maths.ox.ac.uk/about/history/

University of Oxford Mathematical Institute Skip Links Locator: Home Site Map About the Mathematical Institute Oxford Mathematics and Mathematicians This is the text of a lecture by the late I. W. Busbridge, who was appointed to a lecturership in mathematics at St Hugh's College in 1938, and who was a fellow of the College from 1945 to 1970. She died in 1988. It is reproduced here without revision, as it was printed in a Mathematical Institute pamphlet in 1974. Much has happened in Oxford since then, but her account is still of great interest. I Introduction II III ... Bibliography Foreword The following account of mathematics at Oxford was first given as my presidential address to the Invariant Society in 1961 and I have repeated it three times at the request of the Society, each time making modifications resulting from further reading. At no time had I any thought of publication and I kept no detailed account of the exact sources of my information. My greatest debt is to R.T. Gunther's Early Science in Oxford and to C.E. Mallet's

38. HIST 236 WEBPAGE OF LINKS Sacrobosco john of holywood, The Sphere,. Intorductory Medieval astronomy text.Agrippa, Heinrich Cornelius, Three Books of Occult Philosophy. http://www.lancs.ac.uk/depts/history/course-sites/hist236/weblinks.htm

HIST 236 WEBPAGE OF LINKS. Under construction 4 October, 2003. More links to be added. 1. Primary Sources (mainlyin translation). Aristotle, The Physics Follow links for many other classical texts. Sacrobosco [John of Holywood], The Sphere, Intorductory Medieval astronomy text. Agrippa, Heinrich Cornelius, Three Books of Occult Philosophy Copernicus, Nicolas. On the Revolutions Society of Jesus, The Order of Studies Ratio Studiorum G.B. della Porta, Natural Magick (link to book 7 and homepage) Vesalius, Andreas, De Humani Corporis Fabrica The beginnings [only] of an internet edition-translation. The Milton-L Home Page On John Milton 2. Secondary Sources, Dorothea Singer, Giordano Bruno: His Life and Thought The John Dee Society. Includes volumes by Fell Smith and Draper. S. Pumfrey. " Was Thomas Harriot the English Galileo? An answer from patronage studies ". A version appeared in Bull. Soc. Ren. Studs 21, no. 1 (2003), 11-22. White, Andrew Dickson. A History of the Warfare of Science with Theology 3. General Sites. The Internet Classics Archive Includes works by Aristotle

39. John Of Leiden - Columbia Encyclopedia® Article About John Of Leiden John of Leiden. Information about John of Leiden in the Columbia Encyclopedia® . john of holywood John of Ibelin John of Ibelin (jurist) http://columbia.thefreedictionary.com/John of Leiden

Domain='thefreedictionary.com' word='John of Leiden' 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 John of Leiden Also found in: Wikipedia 0.06 sec. Page tools Printer friendly Cite / link Email Feedback John of Leiden, Anabaptist Anabaptists [Gr.,=rebaptizers], name applied, originally in scorn, to certain Protestant sects holding that infant baptism is not authorized in Scripture and that baptism should be administered to believers only. A convert if baptized in infancy must be baptized again as an adult (Anabaptists did not consider adult baptism to be a repetition, as their critics charged, since infant baptisms were annulled). Click the link for more information. leader. His original name was Beuckelszoon, Beuckelzoon, Bockelszoon, Bockelson, Beukels, or Buckholdt. John of Leiden was attracted to the extreme left of the early Reformation movement through the influence of Thomas or Click the link for more information.

40. Encyclopedia: February 30 Johannes de Sacrobosco or Sacro Bosco (john of holywood, c. The Julian calendarwas introduced by Julius Caesar in 46 BC, taking force in 45 BC or 709 http://www.nationmaster.com/encyclopedia/February-30

Supporter Benefits Signup Login Sources ... Pies Related Articles People who viewed "February 30" also viewed: Soviet revolutionary calendar February Month Gregorian Calendar ... January 1 What's new? Our next offering Latest newsletter Student area Lesson plans Recent Updates Card Sharks Cancºn International Airport Camp Lazlo Call for Help (television program) ... More Recent Articles Top Graphs Richest Most Murderous Most Taxed Most Populous ... More Stats Encyclopedia: February 30 Updated 4 days 1 hour 54 minutes ago. Other descriptions of February 30 Swedish calendar February 1712 Under the Gregorian calendar February contains 28 or 29 days. However, once in history it actually had 30 days. Two other occasions when it was also thought to have had 30 days were based on misunderstandings. The picture shows two pages from a Swedish almanac from 1712. ... The picture shows two pages from a Swedish almanac from 1712. ... The Gregorian calendar is the calendar widely used in the Western world. ... February is the second month of the year in the Gregorian Calendar. ... The Swedish realm (which included Finland at the time) planned to change from the Julian calendar to the Gregorian calendar beginning in by omitting the leap days for the next 40 years. Thus

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