San'a' 1 and the Origins of the Qur'an

Behnam Sadeghi and Mohsen Goudarzi's San'a' 1 and the Origins of the Qur'an, published in the peer reviewed journal Der Islam in 2012, is a scholarly article presenting radiocarbon and textual analysis of the San'a' 1 palimpsest, a Qur'anic manuscript with an erased lower text, arguing it dates from within a few decades of the traditional dating of the Qur'an's compilation and represents an early textual variant. Its strength is that it combines scientific radiocarbon dating with detailed textual comparison in a peer reviewed specialist journal, making it a frequently cited source in the study of early Qur'anic manuscript history. Its limit is that the palimpsest's lower text is only partially legible and the article's specific readings and their implications for the Qur'an's early textual history remain actively discussed among specialists, so its conclusions should be presented as a position within that ongoing scholarly discussion.