Collective_Causal_Event represents complex social phenomena that emerge from the coordinated interaction of multiple social entities, processes, and conditions acting together to produce significant sociological outcomes. These events transcend simple binary relationships by capturing the multidimensional causal networks inherent in social reality, where individual actors, institutional structures, cultural forces, and historical contexts converge to generate observable social changes. Unlike atomic social events, collective causal events embody the systemic nature of social causation, where emergent properties arise from the dynamic interplay between diverse social elements. This class provides the ontological foundation for modelling complex sociological relationships that require multiple participants, conditions, and causal pathways to adequately represent their full explanatory scope, enabling more nuanced analysis of how social transformation occurs through interconnected webs of influence rather than isolated causal chains.