Question: when did the abbasid empire start and end
Answer: Abbasid Caliphate ٱلْخِلافَةُ ٱلْعَبَّاسِيَّة 750 -- 1258 1261 -- 1517 ( under the Mamluk Sultanate of Cairo ) Black Standard Abbasid Caliphate at its greatest extent , c.