History of Nizari Isma'ilism

The History of Nizari Isma'ilism from the founding of Islam covers a period of over 1400 years. It begins with Muhammad's mission to restore to humanity the universality and knowledge of the oneness of the divine within the Abrahamic tradition, through the final message and what the Shia believe was the appointment of Ali as successor and guardian of that message with both the spiritual and temporal authority of Muhammad through the institution of the Imamate.

Source: Wikipedia — History of Nizari Isma'ilism (CC BY-SA 4.0)