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Titre : The chronology of ancient nations : an English version of the Arabic text of the Athâr-ul-Bâkiya of Albîrûni or "Vestiges of the past"... / transl. et ed. with notes and index, by Dr. C. Edward Sachau,...

Auteur : Bīrūnī, Muḥammad ibn Aḥmad Abū al-Rayḥān al- (0973-1050). Auteur du texte

Éditeur : W. H. Allen (London)

Date d'édition : 1879

Contributeur : Sachau, Eduard (1845-1930). Traducteur

Notice du catalogue : http://catalogue.bnf.fr/ark:/12148/cb301077601

Type : monographie imprimée

Langue : anglais

Format : XVI-464 p. ; in-8

Format : Nombre total de vues : 483

Description : Contient une table des matières

Droits : Consultable en ligne

Droits : Public domain

Identifiant : ark:/12148/bpt6k728990

Source : Bibliothèque nationale de France, département Philosophie, histoire, sciences de l'homme, 4-G-107

Conservation numérique : Bibliothèque nationale de France

Date de mise en ligne : 15/10/2007

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1 myself heard 'Abû-alfaraj ben 'Ahmad bon Khalaf AIzamjnn! say that the Mobad in SMra!! had dictated them to him in this form-

I. tM~ n. t~M.< ni. t~itJ~~ IV. )~~ V. t~t~ And lastly, 1 have heard them from the geometrioiam 'Abù-aJhasam AdharHmra, the son of Tazdanl:hasîs, in this form-

I. II. J~ IH. (~ IV. ~M~

(Ahunavaiti.) (Ustavaiti.) (Spent&mainyu.) (Vohukhshathra.)

V. ~A,

(Vahist6isti.)

fi The aum total of their days, therefore, was 365. The quarter of a 10 day (beyond the 365 days) they neglected in their computation, till thèse quarters of a day had summed up to the days of one complète month, which happened in 120 years. Then they added this month to the other months of the year, ao that the number of ita montha became thirteen. Thia month they called ~MMC: (intercaJary month). And the daya of thia additional month they called by the same names as those of the other months.

In this mode thé Persiana proceeded tiU the time when both their empire and their religion periahed. Afterwarda the day-quarters were neglected, and the years were no longer intercalated with them, and, 20 therefore, they did not return to their original condition, and remained considerably behind the fixed points of time (!e. real time). The reason was this that intercalation was an affair settted under the special patronage of their kings at a meeting of the mathematiciams, literary celebrities, historiographers, and chroniclers, priests, and judgea,–on the baaia of an agreement of fUI those regarding the correctnesa of the calculation, after aU the persons I have mentioned had been aummoned to the royal court from a.U parts of the empire, and after they had held conncilB in order to come to an agreement. On this occasion money was spent profusely to such ajt extent, that a man who made a low estima.te 30 said, the cost had sometimes amounted to one million of denajs. This same day waa observed as the most important and the most glorious of ail festivals; it was called the ~M< of 7tt<erc<t!Œ<M?t, and on that day the king used to remit the taxes to his subjeets.

The reason why they did not add thé quarter of a day every fourth year as one complete day to one of the months or to the Epagomenea, was this, that according to their views, not the days, but only the months are liable to beingimtcrcaJa.tcd,boca.u8cthoy had an a.veraiontoinoreasing the number of the days; this was impossible by reason of the prescription of thé law regarding the days on which atm~ntM (whispering 40 prayer) must be said, if it is to be valid. If the number of days be increased by an additional day (the order of the days of <KNtM<tma according to the law, is distorbed). <

p. 45. It was a rule that on eaeh day aTpecial sort of odoriferous plants and