Let’s talk survival bias

How many manuscript copies were produced of any given texts? How many were circulating at any given time? When were they lost, discarded or destroyed?  How often are the works penned on their pages cited in other texts by the same or different authors? These questions lie at the very heart of our epistemology and are usually subsumed under the term ‘survival bias’. Continue reading Let’s talk survival bias

A whole Majmūʿa copied? MS Majāmīʿ 315

In March, I returned to the Dār al-Kutub in Cairo and spent a whole week with their collection. Ibn Ṭūlūn’s name pops up very often in the different collections of the Dār al-Kutub. The earliest acquisitions are certainly found in the Taymūriyya Library, whereas the general collection seems to have made a bulk order of Ibn Ṭūlūn autographs only by the early 1930s.

Aḥmad Taymūr did not only acquire “originals”, however; he also created copies. One modern way of bridging the gap between both was photography, and Taymūr made ample use of it to create facsimiles of autographs. At literally the same time, he also hired copyists to ensure he had personal copies of Ibn Ṭūlūn texts. One of the most intriguing one is MS Majāmīʿ 315 because it is not a copy of one text but rather of an entire multiple-text manuscript. Continue reading A whole Majmūʿa copied? MS Majāmīʿ 315