The Tahirids, however, were not an independent dynasty—according to Hugh Kennedy: "The Tahirids are sometimes considered as the first independent Iranian dynasty, but such a view is misleading. The arrangement was effectively a partnership between the Abbasids and the Tahirids." Indeed, the Tahirids were loyal to the Abbasid caliphs and in return enjoyed considerable autonomy; they were in effect viceroys representing Abbasid rule in Persia.[6][7] The tax revenue from Khorasan sent to the caliphal treasury in Baghdad was perhaps larger than those collected previously.[6]
The founder of the Tahirid dynasty wasTahir ibn Husayn, a SunniPersian ofdehqan origin,[8][9] who had played a major military role in thecivil war between the rival caliphsal-Amin andal-Ma'mun.[10] He and his ancestors had previously been awarded minor governorships in eastern Khorasan for their service to the Abbasids.[8] In 821, Tahir was made governor ofKhorasan, but he died soon afterwards.[a][11] The caliph then appointed Tahir's son, Talha, governor of Khorasan.[12] Talha was unsuccessful in removing the Kharijites from Sistan,[13] and following the death of the Kharijite leader, Hamza b. Adarak (d.828),[14] the Tahirids occupied Zarang but never succeeded in collecting taxes in the surrounding countryside.[15]
Tahir's other son, Abdullah, was instated as thewali ofEgypt and theArabian Peninsula, and when Talha died in 828 he was given the governorship ofKhorasan. Abdullah is considered one of the greatest of the Tahirid rulers,[12] as his reign witnessed a flourishing of agriculture in his native land of Khorasan, popularity in the eastern lands of the Abbasid caliphate and expanding influence due to his experience with the western parts of the caliphate. A noted poet, he sympathized with all things Arabic.[16]
Abdullah died in 844 and was succeeded by his sonTahir II.[18] Not much is known of Tahir's rule, but the administrative dependency ofSistan was lost to rebels during his governorship. Tahirid rule began to seriously deteriorate after Tahir's sonMuhammad ibn Tahir became governor, due to his carelessness with the affairs of the state and lack of experience with politics. Oppressive policies inTabaristan, another dependency of Khorasan, resulted in the people of that province revolting and declaring their allegiance to the independentZaydi rulerHasan ibn Zayd in 864.[12] In Khorasan itself, Muhammad's rule continued to grow increasingly weak, and in 873 he was finally overthrown by theSaffarid dynasty, who annexed Khorasan to their own empire in easternPersia.
Besides their hold over Khorasan, the Tahirids also served as the military governors (ashab al-shurta) of Baghdad, beginning with Tahir's appointment to that position in 820. After he left for Khorasan, the governorship of Baghdad was given to a member of a collateral branch of the family,Ishaq ibn Ibrahim, who controlled the city for over twenty-five years.[19] During Ishaq's term as governor, he was responsible for implementing theMihna (inquisition) in Baghdad.[20] His administration also witnessed the departure of the caliphs from Baghdad, as they made the recently constructed city ofSamarra their new capital.[21] When Ishaq died in 849 he was succeeded first by two of his sons, and then in 851 by Tahir's grandsonMuhammad ibn Abdallah.[19]
Abdallah played a major role in the events of the "Anarchy at Samarra" in the 860s, giving refuge to the caliphal-Musta'in and commanding the defense of Baghdad when it wasbesieged by the forces of the rival caliphal-Mu'tazz in 865. The following year, he forced al-Musta'in to abdicate and recognized al-Mu'tazz as caliph, and in exchange was allowed to retain his control over Baghdad.[22] Violent riots plagued Baghdad during the last years of Abdallah's life, and conditions in the city remained tumultuous after he died and was succeeded by his brothers, firstUbaydallah and thenSulayman.[23] Eventually order was restored in Baghdad, and the Tahirids continued to serve as governors of the city for another two decades. In 891, however,Badr al-Mu'tadidi was put in charge of the security of Baghdad in place of the Tahirids,[19] and the family soon lost their prominence within the caliphate after that.[12]
Early 9th centurySasanian-style silver plates from Merv.
The historianClifford Edmund Bosworth explains that while the Tahirids were Persians, they were also highly Arabized in culture,[24] and eager to be accepted in the caliphal world, where cultivation of things Arabic gave social and cultural prestige.[25] Due to this, the Tahirids were not part of the renaissance of Early New Persian language and culture.[25] He adds that the Persian language was at least tolerated in the entourage of the Tahirids, whereas theSaffarids played a leading part in the renaissance ofPersian literature.[25]
Centuries later, both'Aufi andDaulatshah wrote the Tahirids were hostile to Persian literature.[26] 'Abd-Allah b. Tahir ordered the Persian novelVamiq-u Adhra "The Ardent Lover and the Virgin" (based on a Hellenistic novel[27]) and other Persian andZoroastrian works destroyed, according to Daulatshah.[26]
However, according to the historian Shivan Mahendrarajah, in reference to the dynasties of theIranian Intermezzo of which the Tahirids are considered part:[28]
Persian (the language) and Iranian (the identity) were reasserting themselves. Iranians were adapting Arab-Islamic cultural tenets through a process of 'take the best, leave the rest'.
Within this context, Mahendrarajah adds that the Tahirids were specifically responsible for initiating the process by which Persian became written in thePerso-Arabic script, referring to this as "an ingenious Iranian adaption that allowed them to retain the heritage and charm of the Persian language".[28]
The Tahirids claimed descent fromRustam, the mythological Iranian hero.[29]
The art historianSheila Blair explains that the Tahirids may well have added Persian inscriptions to their (now non-extant) buildings.[30]
^"The Taherids of Iraq. As the events of the late Taherid period demonstrate, the Taherids in Iraq were just about as powerful and important, even if less well known, than their Khorasani relatives. They regularly held positions as military commanders, heads of the security forces (ṣāheb al-šorṭa) for eastern and western Baghdad, and chief tax collectors or administrators (e.g., ʿāmel and moʿāwen) for the Sawād of Kufa."[11]
^Starr, S. Frederick (2015).Lost Enlightenment: Central Asia's Golden Age from the Arab Conquest to Tamerlane. Princeton University Press. p. 195.ISBN9781400848805.
^Marin, E. (1986). "'Abd Allāh b. Țāhir". In Gibb, H. A. R.; Kramers, J. H.; Lévi-Provençal, E.; Schacht, J. (eds.).Encyclopaedia of Islam. Vol. I. E.J. Brill. p. 53.ISBN9004081143.
Blair, S. (2003). "Language situation and scripts: Arabic". In Bosworth, C.E.; Asimov, M.S. (eds.).History of Civilizations of Central Asia. Vol. IV. Motilal Banarsidass.
Bosworth, C.E. (2012). "Ḥamza b. Ādarak".Encyclopaedia Iranica.
Canfield, Robert L. (1991). "Introduction: the Turko-Persian tradition". In Canfield, Robert L. (ed.).Turko-Persia in Historical Perspective. Cambridge University Press.
Daftary, F. (2003). "Sectarian and national movements in Iran, Khurasan and Transoxanial during Umayyad in early Abbasid times". In Asimov, M.S.; Bosworth, C.E. (eds.).History of Civilizations of Central Asia. Vol. IV: Part I. Motilal Banarsidass. pp. 41–60.ISBN92-3-103467-7.
Mahendrarajah, Shivan (2019). "The Iranian interlude: From Mongol decline to Timur's invasion". InBabaie, Sussan (ed.).Iran After the Mongols. I.B. Tauris.ISBN978-1788315289.
Peacock, A. C. S. (2007).Mediaeval Islamic Historiography and Political Legitimacy: Balʿamī's Tārīkhnāma. London and New York: Routledge.ISBN978-0-415-40025-1.
Spuler, Bertold (2015). Hoyland, Robert G.; Goldbloom, Gwendolin; Walburg, Berenike (eds.).Iran in the Early Islamic Period: Politics, Culture, Administration and Public Life between the Arab and the Seljuk Conquests, 633-1055. Brill.ISBN978-90-04-27751-9.