Natalia Mehlman Petrzela is a historian, author, podcaster, and frequent speaker and expert. She is the author of Classroom Wars: Language, Sex, and the Making of Modern Political Culture and Fit Nation: The Gains and Pains of America’s Exercise Obsession, a columnist for MSNBC, and the lead scholar on the New York City Department of Education's Jewish American Hidden Voices curriculum, coming June 2025.