This excellent book summarizes the history of Islamic Caliphate and caliphs up to the times of Imam As-Suyuti.
Extensive as is the reputation of the Suyuti as a distinguished author and scholar and unsurpassed for then number and range of the works which in every branch of literature known to his age, his unwearied pen never ceased to produce, we are indebted to the malice or envy of but one of his contemporaries and to his own testimony for the few details of his life and studies that we possess. Reference to one or other of his multitudinous volumes is made by writers of his own and succeeding times where the kindred subject of which they treat naturally calls for it, but only one contemporary biographical notice of him besides his own, is extant.