A schism is a division or split within a group, often due to differing beliefs or practices. This term is commonly used in religious contexts, where factions may form over theological disagreements. For example, the Great Schism of 1054 divided Christianity into the Roman Catholic Church and the Eastern Orthodox Church, primarily over issues of authority and doctrine. Schisms can also occur in other areas, such as politics or social movements, where differing ideologies lead to fragmentation. These divisions can impact the unity and effectiveness of the group, often resulting in conflict and competition between the factions.