The era of Al-Ma'mun..

This book, "The Era of Al-Ma'mun," is divided into three volumes: The author devoted the first of them to history and what refers to history, and the second and third of them to literature and what refers to literature, and in summarizing the poets in them, he relied on the mothers of literary themes, especially the book "Al-Aghani"... He divided the first volume into three books in which he dealt with research on the eras of the Umayyads, the Abbasids, and Al-Ma'mun. He sought to be brief ...