We shall see how, in their calendrical monographs, the medieval Iberian Rabbis Abraham bar Ḥayya (untitled, 1123) and Isaac Israeli (Yesod Olam, 1310) contextualize and interpret ancient Rabbinic traditions in a scientific framework.
(Image: Yesod ʻolam, Israeli, Isaac ben Joseph, 1484, MS. Huntington 299, Photo: Bodleian Libraries, University of Oxford 2017)