A Political history of Islam, from the demise of the Messenger A.S to the decline of The Umayyad Dynasty 11-132 A.H. The History of the Caliphs manifests undeniable facts associated with History of Shiism, the facts every Shiite Muslim and those after Shiism find helpful to achieve an understanding of the History of Islam. The writer has beautifully expounded starting from the Caliphate of Abubakr until the fall of Ummayyads and the situation around Shiites in the last decade of their monarchy.