This learning resource explores the process of investigating historical events, specifically through the lens of the Mary Celeste mystery. It emphasizes the importance of defining key concepts such as fact, evidence, and interpretation to construct a robust historical argument. The document guides learners in distinguishing between what is observably true (fact) and how those truths support broader claims (evidence). Furthermore, it illustrates the critical role of interpretation, showing how historians analyze facts to derive meaning and context from past events. Through activities, discussions, and reflective questions, students are encouraged to engage in historical analysis, reinforcing the detective-like skills required for understanding the complexity of historical narratives.