[German version]

(Abbāsids). Islamic dynasty (AD 750-1258). The accession of the A. occurred after a weakening of the  Omayyads by disputes over succession, tribal conflicts, social alienation and Iranian influences, which were expressed in a new orientation towards the East. In 763 the capital relocated from Damascus to Baghdad. Intellectual life profited from the multinational constellation. Scientific, cultural and literary flowering characterized by Hellenistic and Iranian influences under caliph Hārūn ar-Ra…