Donald Kagan was a prominent American historian renowned for his expertise in ancient Greek history, particularly the Peloponnesian War. His scholarly work has significantly influenced the understanding of this historical period, and he is best recognized for his four-volume series on the Peloponnesian War, which intricately examines the conflict between Athens and Sparta. Kagan’s insightful analysis includes the political and social dynamics that shaped this era, providing valuable perspectives on warfare and diplomacy. In addition to his historical writings, Kagan was an acclaimed educator. He held the position of professor at Yale University, where he greatly impacted his students and the broader academic community. Known for his engaging teaching style, Kagan emphasized the importance of critical thinking and discourse, encouraging students to explore various interpretations of history. Kagan's contributions extended beyond academia into public discourse, where he often shared his views on contemporary issues. His commitment to classical education and the lessons it imparts regarding human nature and society resonated with many. Through his writing and teaching, Kagan fostered a deeper appreciation for the complexities of history and its relevance to modern times. Donald Kagan was a prominent American historian known for his expertise in ancient Greek history, especially the Peloponnesian War. His scholarly work has significantly influenced the understanding of this historical period, with his four-volume series on the Peloponnesian War providing a comprehensive examination of the conflict between Athens and Sparta. Kagan’s insightful analysis delves into the political and social dynamics that shaped this era, offering valuable perspectives on warfare and diplomacy. In addition to his historical writings, Kagan was a celebrated educator. He served as a professor at Yale University, where he had a considerable impact on his students and the academic community. Known for his engaging teaching style, Kagan emphasized critical thinking and discourse, urging students to explore various interpretations of history. Kagan’s contributions reached beyond academia into public discourse, where he shared his insights on contemporary issues. His dedication to classical education and the lessons derived from history resonated with many. Through his writing and teaching, Kagan cultivated a deeper understanding of history’s complexities and its significance in today’s world.