The rise of Abbasids in 750CE was an epoch-making event in the history of Islam. Majority of the khalifas belonging to the ummayad dynasty paid no heed towards administration. Besides this, Mawalis (Non-Arab Muslims) also had to face humiliation and deprivation at the hands of Arab Muslins. They were waiting for a golden opportunity to oust the Ummayads from power. Taking advantage of the chaos as rampant in the ummayad dynasty, Abu Muslim launched a movement called Dawa against the ummayad dynasty at khurasan in 747CE . The basic Aim behind launching this movement was to oust the Ummayads from power. The movement declared ummayads as tyrant and an anti- islamic force.The Abbasids Revolution put an end to the Ummayad dynasty which ruled From 661CE to 750CE. After the fall of Ummayads in 750CE , Abbasids came to power in 1258CE.

Introduction:
The Abbasid Revolution, also known as the Abbasid Revolt, was a significant event in Islamic history that led to the overthrow of the Umayyad Caliphate and the establishment of the Abbasid Caliphate. This revolution brought about significant political, social, and cultural changes within the Muslim world.

Causes:
- Dissatisfaction with Umayyad rule: The Umayyad Caliphate faced opposition from various groups, including the non-Arab Muslims who felt marginalized and discriminated against.
- Tribal and regional tensions: There were widespread tribal and regional conflicts within the Muslim empire, which further contributed to the dissatisfaction with Umayyad authority.
- Religious grievances: Religious scholars and religiously devout individuals criticized the Umayyads for their luxurious lifestyles and deviation from true Islamic teachings.
- Support from various factions: The Abbasid Revolution gained support from different groups, including the mawali (non-Arab Muslims), Persian nationalists, and dissatisfied members of the Umayyad administration.

Key Players:
- Abu Muslim: A prominent leader who played a crucial role in organizing and leading the Abbasid Revolution.
- Al-Abbas ibn Ali: The descendant of Ali, the cousin and son-in-law of the Prophet Muhammad, who was seen as a symbol of legitimacy and rallying point for the revolutionaries.
- Al-Mansur: The founder of the Abbasid Caliphate and the first Abbasid Caliph.

Events:
- Uprising in Khurasan: The revolution started in the eastern province of Khurasan, where Abu Muslim successfully mobilized the local population against the Umayyads.
- Battle of the Zab: The decisive battle between the Abbasid forces and the Umayyads, resulting in the victory of the former and the death of the Umayyad Caliph Marwan II.
- Capture of Damascus: The Abbasids captured the Umayyad capital, Damascus, and consolidated their power.

Consequences:
- Shift in the center of power: The Abbasid Caliphate moved its capital from Damascus to Baghdad, marking a significant shift in the political landscape of the Muslim world.
- Consolidation of Persian influence: The Abbasids embraced Persian culture and administration, leading to the dominance of Persian influence within the caliphate.
- Golden Age of Islam: The Abbasid Caliphate witnessed a flourishing of arts, sciences, and intellectual pursuits, leading to advancements in various fields such as medicine, astronomy, and philosophy.
- Fragmentation and decline: Over time, the Abbasid Caliphate faced internal conflicts and external invasions, leading to its eventual fragmentation and decline.

Conclusion:
The Abbasid Revolution marked a turning point in Islamic history, leading to the downfall of the Umayyad Caliphate and the rise of the Abbasid Caliphate. It brought about significant political, social, and cultural changes, shaping the Muslim world for centuries to come.