Question

What were the circumstances the led to the ‘Abbasid Revolution?​

Answer 1

Answer:

Discontent among Shia Muslims

Following the Battle of Karbala which led to the massacre of Husayn ibn Ali, the grandson of Muhammad, and his kin and companions by the Umayyad army in 680 CE, the Shias used this event as a rallying cry of opposition against the Umayyads.