Al-Ma'mun reign (14 янв 813 г. – 18 июн 833 г.)
Описание:
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.Добавлено на ленту времени:
Дата:
14 янв 813 г.
18 июн 833 г.
~ 20 years