Istakhri

Abu Ishaq Ibrahim ibn Muhammad al-Farisi al-Istakhri (آبو إسحاق إبراهيم بن محمد الفارسي الإصطخري) (also Estakhri, Persian: استخری, i.e. from the Iranian city of Istakhr, b. - d. 346 AH/AD 957) was a 10th-century travel author and Islamic geographer who wrote valuable accounts in Arabic of the many Muslim territories he visited during the Abbasid era of the Islamic Golden Age. There is no consensus regarding his origin. Some sources describe him as Persian, while others state he was Arab. The Encyclopedia Iranica states: "Biographical data are very meager. From his nesbas (attributive names) he appears to have been a native of Eṣṭaḵr in Fārs, but it is not known whether he was Persian".

Istakhri's account of windmills is the earliest known. Istakhri met the celebrated traveller-geographer Ibn Hawqal, while travelling, and Ibn Hawqal incorporated the work of Istakhri in his book Kitab al-Surat al-Ard.