The "Abbasid Revolution" which overthrew the Umayyads began in which province?
Q1. The "Abbasid Revolution" which overthrew the Umayyads began in which province?
Answer: Khorasan
Explanation: The Abbasid Revolution began in Khorasan (in present-day Iran/Central Asia) in 747 CE, led by Abu Muslim al-Khorasani under the black banners of the Abbasids, overthrowing the Umayyad dynasty by 750 CE.