Ehsan Yarshater 
Set – History of al-Tabari [PDF ebook] 
Volumes 1-40 (Includes Index)

Collecting all forty volumes of The History of al-Ṭabarī.
Completed in 1999 by a distinguished group of Arabists and historians of Islam, the annotated translation of
The History of al-Ṭabarī/i> is arguably the most celebrated chronicle produced in the Islamic lands on the history of the world and the early centuries of Islam. The thirty-nine-volume set, published in the SUNY series in Near Eastern Studies, under the general editorship of Professor Ehsan Yarshater of Columbia University, is the only complete English translation. The History was published by SUNY Press between 1985 and 1999, with the Index, added to the set in 2007. It is an essential and highly praised resource in Islamic studies. Details as to authors and contents of each volume may be found here: http://www.sunypress.edu/p-4511-set-history-of-al-tabari.aspx