The Abbasid revolution (Arabic: اَلثَّوْرَة اَلْعَبَّاسِيَّةِ, romanized: aṯ-Ṯawra al-ʿAbbāsiyyah), was the overthrow of the Umayyad Caliphate (661–750), the second major caliphate, by the Hashimiyya movement, resulting in the establishment of the Abbasid Caliphate (750–1517), the third major caliphate.
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The 1281st anniversary falls on June 9, 2027.
