(2011) Byzantion : revue internationale des etudes byzantines — Vol. 81, p. 362-411 (2011)
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Tihon, AnneUCLouvain
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Abstract
This paper gives a critical edition of the Treatise on the Easter Computus of larlaam of Seminara, with a French translation and commentary. Written round 1333 this treatise demonstrates systematically and scientifically why he Easter Canon used at that time by the Church is superseded. Nevertheless arlaam advises that the usual Canon should not be changed. In spite of its bjectivity, Barlaam's treatise must be seen in the context of his rivalry with ricephorus Gregoras, who had already proposed to modify the Canon. The aper analyses Gregoras' text and gives a comparison with Barlaam's treatise. At the scientific level, both scholars rely on Ptolemy for the date of the spring quinox and the length of the Solar year, but Barlaam introduces a supple-lentary argument, which is the inexactness of the 19 year cycle.
Tihon, A. (2011). Barlaam de seminara traité sur la date de pâques. Byzantion : revue internationale des etudes byzantines, 81, 362-411. https://hdl.handle.net/2078.5/188719 (Original work published 2011)