The capture of Merv by Abu Muslim Khorasani and the Hashimi rebels was a significant turning point in the Abbasid Revolution, which aimed to dismantle Umayyad rule. Khorasan, known for its diverse population and significant economic resources, was vital for launching the revolt against the Umayyad dynasty. Abu Muslim Khorasani, a charismatic and strategic leader, rallied support from various factions within Khorasan, enabling him to challenge the established Umayyad order effectively. The rebellion gained traction due to widespread discontent with the Umayyads, where many felt oppressed and marginalized, particularly in the eastern provinces. Securing Merv not only boosted the morale of the Abbasid forces but also solidified Abu Muslim's position as a prominent figure in the revolt. This victory attracted further support for the Abbasid cause, compelling many to join the ranks of the rebels. The successful takeover of the capital of Khorasan highlighted the tactical prowess and organizational skills of Abu Muslim and his followers, who leveraged both military strength and grassroots support. It became a symbol of resistance against Umayyad tyranny and energized the movement, paving the way for subsequent victories.The triumph in Merv culminated months of strategic planning and military engagement by the Abbasid supporters and served as a catalyst for further uprisings across the empire. Ultimately, it was instrumental in enabling the Abbasids to establish a new ruling dynasty, thereby fundamentally altering the course of Islamic history and governance in the region.