In an era where misinformation thrives and political polarization deepens, the battle over historical memory and public education has become a defining conflict of our time. This presentation explores the tension between truth and propaganda in contemporary discourse, drawing from historical patterns of fascism, nationalism, and anti-intellectualism. Through an interdisciplinary analysis of media rhetoric, educational policies, and public discourse, I examine how historical erasure and nationalist narratives create ideological harmony for those in power while fostering societal dissonance. I'll apply critical theory and postmodernist perspectives to analyze the mechanisms of historical revisionism and censorship. From book bans to attacks on academic freedom, authoritarian-leaning movements have strategically used “harmony” to stifle dissent, suppress marginalized voices, and maintain dominant power structures. However, productive dissonance through education, activism, and democratic engagement remains a key force in resisting these trends. This presentation will discuss how educators, students, and engaged citizens can leverage critical literacy and historical consciousness to challenge the authoritarian use of history as a political weapon. By understanding how the past is manipulated to shape the present, we can foster a more nuanced engagement with civic discourse. Ultimately, I argue that true harmony in democratic societies does not come from enforced unity but from the ability to engage with and navigate historical and ideological conflict. This presentation will appeal to scholars of history, political science, education, and media studies, as well as students and faculty interested in the intersections of democracy, power, and knowledge.