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- Roger_of_Hereford abstract "Roger of Hereford (sometimes Rogerus Herefordensis or Roger Infans or Roger Puer; flourished 1176–1198) was a medieval astronomer active at Hereford in the period 1178 to 1198.Nothing is known of Roger's nationality or when he was born nor of his education. He first appears in the historical record in 1176, when he wrote a computus, a treatise on calculating ecclesiastical dates for Gilbert Foliot, who had previously been Bishop of Hereford but was at that time Bishop of London. In this computus, Roger criticized the work of Gerland, which was the standard work at the time on calculating ecclesiastical dates, and drew on Hebrew and Arabic learning.Roger's connections with Hereford are shown by the fact that he wrote a set of tables showing the meridian of Hereford in 1178. He is probably the same person as the Roger Infans who was a witness on charters at Hereford in the time frame 1186 to 1198.Another work of Roger's was an astronomical treatise covering most aspects of the subject. Entitled Liber de Quatuor Partibus Judiciorum Astronomie, it drew on earlier works by Raimond de Marseille, and the translations of Arabic works performed by Juan de Sevilla and Hermann of Carinthia. Besides the above works, manuscripts assign works on astrology and alchemy to Roger, although these works do not survive.Roger was the dedicatee of a translation made by Alfred of Shareshill. Roger may also be responsible for a new method of calculating horoscopes.Roger was an important scholar in transmitting the knowledge of Adelard of Bath and others of a previous generation to a new generation of scholars, including Robert Grosseteste, who was a young member of the same household with Roger during Roger's later years at Hereford.".
- Roger_of_Hereford wikiPageID "27417977".
- Roger_of_Hereford wikiPageLength "2529".
- Roger_of_Hereford wikiPageOutDegree "15".
- Roger_of_Hereford wikiPageRevisionID "702750987".
- Roger_of_Hereford wikiPageWikiLink Adelard_of_Bath.
- Roger_of_Hereford wikiPageWikiLink Alfred_of_Shareshill.
- Roger_of_Hereford wikiPageWikiLink Bishop_of_Hereford.
- Roger_of_Hereford wikiPageWikiLink Bishop_of_London.
- Roger_of_Hereford wikiPageWikiLink Category:12th-century_English_people.
- Roger_of_Hereford wikiPageWikiLink Category:Medieval_English_astronomers.
- Roger_of_Hereford wikiPageWikiLink Computus.
- Roger_of_Hereford wikiPageWikiLink Floruit.
- Roger_of_Hereford wikiPageWikiLink Gerland_(mathematician).
- Roger_of_Hereford wikiPageWikiLink Gilbert_Foliot.
- Roger_of_Hereford wikiPageWikiLink Hereford.
- Roger_of_Hereford wikiPageWikiLink Herman_of_Carinthia.
- Roger_of_Hereford wikiPageWikiLink Juan_de_Sevilla.
- Roger_of_Hereford wikiPageWikiLink Raimond_de_Marseille.
- Roger_of_Hereford wikiPageWikiLink Robert_Grosseteste.
- Roger_of_Hereford wikiPageWikiLinkText "Roger of Hereford".
- Roger_of_Hereford wikiPageUsesTemplate Template:Authority_control.
- Roger_of_Hereford wikiPageUsesTemplate Template:Cite_encyclopedia.
- Roger_of_Hereford wikiPageUsesTemplate Template:ODNBsub.
- Roger_of_Hereford wikiPageUsesTemplate Template:Reflist.
- Roger_of_Hereford subject Category:12th-century_English_people.
- Roger_of_Hereford subject Category:Medieval_English_astronomers.
- Roger_of_Hereford hypernym Astronomer.
- Roger_of_Hereford type Person.
- Roger_of_Hereford type Thing.
- Roger_of_Hereford comment "Roger of Hereford (sometimes Rogerus Herefordensis or Roger Infans or Roger Puer; flourished 1176–1198) was a medieval astronomer active at Hereford in the period 1178 to 1198.Nothing is known of Roger's nationality or when he was born nor of his education. He first appears in the historical record in 1176, when he wrote a computus, a treatise on calculating ecclesiastical dates for Gilbert Foliot, who had previously been Bishop of Hereford but was at that time Bishop of London.".
- Roger_of_Hereford label "Roger of Hereford".
- Roger_of_Hereford sameAs Q7359222.
- Roger_of_Hereford sameAs m.0c00glz.
- Roger_of_Hereford sameAs Q7359222.
- Roger_of_Hereford wasDerivedFrom Roger_of_Hereford?oldid=702750987.
- Roger_of_Hereford isPrimaryTopicOf Roger_of_Hereford.