Hammoud Mansour's 'The Great Sedition' meticulously examines the pivotal events of the first major conspiracy against Islam and its profound repercussions during the year 35 AH (655/656 CE). This insightful historical account delves into the complex political landscape, the emergent divisions within the nascent Islamic state, and the factors that led to the significant turmoil known as the First Fitna. Mansour explores the origins of these deep-seated conflicts, the key figures involved, and the lasting impact these early schisms had on Islamic history and governance. The book offers a critical analysis of the conspiracy's mechanics and its far-reaching consequences for the Muslim community, providing readers with a comprehensive understanding of a crucial period that shaped the future trajectory of Islamic civilization.