Question

what are the causes of abbasid Revolution​

Answer 1

Discontent among non-Muslims

Support for the Abbasid Revolution was an early example of people of different faiths aligning with a common cause. This was due in large part to policies of the Umayyads which were regarded as particularly oppressive to anyone following a faith other than Islam.

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Answer 2

Answer:

Support for the Abbasid Revolution was an early example of people of different faiths aligning with a common cause. This was due in large part to policies of the Ummayads which were regarded as particularly oppressive to anyone following a faith other than Islam