Al-Ma'mun reign (14 gen 813 anni – 18 giug 833 anni)
Descrizione:
Some historians believe that the recent build of Baghdad, the caliphs founded centers of story, including the Beyt al-Hikma, or House of Wisdom can be partly credited to Al-Ma'mun but some give credit to earlier caliphs.Aggiunto al nastro di tempo:
Data:
14 gen 813 anni
18 giug 833 anni
~ 20 years