A period of history between the death of the Prophet and the killing of Hussein

If we want to solve a dilemma, we must look at its roots. If this dilemma has spanned many years, then let us look at its history and open its record to examine it well. This is what the author, Uthman bin Muhammad Al-Khamis, did regarding the problem of the age: the issue of "Shi'a and Sunnis" and the differences or agreements between them, and the issues that stem from it, such as those related to the Companions (may Allah be pleased with them), as well as the hadiths narrated from them and their relationships with each other. He went back to the primary sources of history in an attempt to differentiate between what is true and false about a pivotal historical period that is considered the true beginning of all that the Islamic nation has suffered until today. This is what is called the Great Fitna (sedition). However, he did not provide the usual historical narrative of this event; rather, he began the first chapter of the book by explaining how to read history and the methodology for verifying it, followed by a historical narrative that precedes this stage—that is, the history of the Caliphate, starting from Al-Siddiq (may Allah be pleased with him), passing through that Great Fitna, up to the pledge of allegiance to Yazid and the departure of Al-Hussein (may Allah be pleased with him) to Kufa. The book (A Period of History) did not stop there but also addressed in its third and fourth chapters what is circulated about the justice of the Companions, the suspicions raised about them, and the responses to them. Finally, it discussed the hadiths cited by the Shi'a to prove the Imam Ali's (may Allah be pleased with him) right to Imamate, as well as responses to them. The author combined in his book the methodology that should be followed in reading history and its application in the subsequent narrative, and finally, the refutation of lies with evidence and arguments.