    the abbasid caliphate ( / ala-lc: al-khilÄfah al-âabbÄsÄ«yyah), was the third of the islamic caliphates to succeed the islamic prophet muhammad. the abbasid dynasty descended from muhammad's youngest uncle, abbas ibn abd al-muttalib (566â653 ce). they ruled as caliphs, for most of their period from their capital in baghdad in modern-day iraq, after taking back authority of the [[muslim conquests|muslim 
Abbasid_Caliphate Arab_dynasties Former_countries_in_Europe Former_countries_in_the_Middle_East Former_empires History_of_Iran Medieval_Iraq States_and_territories_disestablished_in_the_1510s States_and_territories_established_in_750 States_in_medieval_Anatolia