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THE BREAKUP OF THE CALIPHATE
nation should in time rise from its defeat and impose its customs
and values and traditions on its conquerors. On one plane, indeed,
that of religion, the Arabs were bound to retain their superiority:
as the vehicle of divine revelation, no tongue could compete with
Arabic; an educated Persian, on embracing Islam, took to using the
language of the Koran, and for several generations no Persian
writer on law or theology, history or grammar, philosophy or
medicine, employed any other medium than Arabic. But the
political and social domination of the Arabs was broken early: the
Persian mawali rallied behind their countryman Abu Muslim in the
drive to overthrow the rule of the Omayyads, centered in Arab
Syria, and after 750 the nation found itself faced with a choice of
means to express its newfound sense of liberation. It could seek to
control and Persianize the new Caliphal regime; it could repudiate
Islam by reverting to a pre-Muslim cult of Mazdakism or the like;
it could take up with some form of Shi‘ism, thereby adopting a
solution within the framework of Islam, or it could strive for
political independence of the Caliphate under native though
Muslim princes. All these means were tried with success, save the
second; after the collapse of the Mukanna and Babak movements,
a return to the pre-Islamic past was effectively ruled out, and the
Persians set to work to mould and colour Islam according to their
Iranian conceptions and traditions.
The Caliphate, from being a magnified Arab Shaikhdom, took
on the aspect of a resurrected Sassanid monarchy. Baghdad, the
new imperial capital, was built by Mansur only a few miles from
Ctesiphon; the civil service was filled with Persian clerks; a new
official, the wazir or vizier, headed the Caliph’s chancery, his duties
and functions seemingly modelled on those of Buzurgmihr, the
semi-legendary minister of Khusrau Nushirvan, and the subjects of
the Commander of the Faithful, when received in audience,
prostrated themselves at his feet, a homage unknown in Medina or
even in Damascus. The tall, conical Persian hat was adopted by
Mansur and his court as part of their official dress, and Persian
festivals, such as that of the New Year, were widely observed. For
nearly fifty years, from the reign of Mansur to that of Harun, the
government of the Empire was in the hands of the Persian
Barmakids or Barmecides, a remarkable family who had been
hereditary guardians of a Buddhist shrine at Balkh, in Khurasan,