The study of the history of the caliphs is one of the important topics in Islamic history, which stands for the translation of each caliph, the facts of his life, the date of his assumption of the caliphate and how he left it, so we find that many historians dated them. Conclusions:Ibn Majah was the first to date in the history of the Islamic caliphate, and he was the first to address the name of the caliphs. Ibn Majah’s attempts in his book were an inventory of the caliphs, including the name, nickname, duration of the caliphate, and the date of death, as well as his keenness to write down the name and mention of the mother of each caliph, whether it was his mother or mother. Free, moreover, Ibn Majah took care of his codification of the caliphs chronological sequence, so his book was divided into three sections, the first included the Rashidun Caliphate, the second Umayyad Caliphate, and the third the Abbasid Caliphate. Ibn Majah considered the issue of the caliphate a supreme religious authority, so he was keen not to enter into any hadith that prejudiced this position, and Ibn Majah did not date any of the capitals taken by the Islamic dispute, whether Medina, Kufa, Damascus, Baghdad or Samarra And we find that Ibn Majah’s writings were distinguished in the Abbasid era near the date of his death by lengthening the narration of events, which leaves some of the suspicion that the narrators enter into this addition.