In the 9th and 10th centuries, non-Arab subjects of the Ummah created a movement called Shu'ubiyyah in response to the privileged status of Arabs. Most of those behind the movement were Persian, but references to Egyptians and Berbers are attested. Citing as its basis Islamic notions of equality of races and nations, the movement was primarily concerned with preserving Persian culture and protecting Persian identity, though within a Muslim context. It was a response to the growing Arabization of Islam in the earlier centuries. The most notable effect of the movement was the survival of Persian language, the language of the Persians, to the present day.