Sharon McMahon

Sharon McMahon is an American educator, author, and widely followed voice in public history, best known for building an online community devoted to nonpartisan civic education. A former high school government and law teacher, she turned her classroom skills toward a much larger audience on social media, where she became known to her followers as America's Government Teacher" for her clear, fact-based explanations of how American institutions, elections, and history actually work. Her approach emphasizes accuracy over ideology and curiosity over outrage, a stance that has earned her a large and engaged following hungry for trustworthy information in a polarized media environment.

The Small and the Mighty reflects the same animating purpose that drives McMahon's broader work: a conviction that history belongs to everyone and that understanding the contributions of overlooked Americans can strengthen civic life in the present. Drawing on careful research and a teacher's instinct for storytelling, she brings forgotten figures to vivid life while modeling the kind of thoughtful, evidence-grounded engagement with the past that she advocates more generally. The book extends her mission beyond current events into the deeper currents of American history, encouraging readers to recognize that the ideals the country aspires to have most often been advanced by people working far from the spotlight—and that this legacy of small, mighty actions remains available to ordinary citizens today.