What the Cairo Edition Did

In 1924 a committee of scholars at al-Azhar produced a printed edition of the Quran at Cairo, setting Asim's reading in Hafs's transmission with a fixed orthography and a complete apparatus of vowel and recitation marks. It was not the first printed Quran and it did not claim any authority the manuscript tradition lacked, but it was the first to be produced to that standard by that institution, and it became the reference text from which most later printings descend. The consequences are hard to overstate. A printed edition can be reproduced identically at any scale, distributed through markets a teaching lineage cannot reach, and used by people with no teacher at all.

Within a few decades Hafs was the working text of most of the Muslim world outside the regions where another transmission was already entrenched. Two things follow that are worth keeping separate. The first is that the edition changed nothing about the standing of the readings: no ruling was issued, nothing was withdrawn, and the other transmissions continued to be taught, examined and recited exactly as before. The second is that it changed almost everything about what most people encounter. When a reader today opens a Quran and sees a particular spelling of a particular word, that spelling is a choice made in Cairo in 1924 within a range the discipline had already fixed, and other spellings inside that range are equally the text.