This article examines the role of gender history in shaping social and cultural transformations, focusing on the contributions of feminist theorists and historians in revising historical narratives. It explores the works of Joan Kelly and other scholars who analyzed gender roles, social structures, and women's participation in historical processes. The study delves into the ideological and methodological approaches of gender history, highlighting its impact on social justice, moral philosophy, and historiography. By analyzing the intersections of gender, power, and historical identity, the paper emphasizes the necessity of integrating gender perspectives into mainstream historical research. Additionally, the evolution of masculinity and femininity in different historical contexts is examined, revealing the broader implications of gender studies for understanding societal development.