This special issue is the result of the three year-long collaboration between the contributors and a larger group of scholars on the topic of Sokol and analogous organizations and phenomena mainly in East Central Europe in the modern era. Our goal was to examine such organizations from multiple perspectives, including the history of political thought, the history of knowledge production, military history, art history, youth history, urban history, the history of religion, history of sports, as well as the history of medicine and eugenics. To that end, we organized three events whereby we identified key themes and workshopped the contributions to the prospective special issue, as well as situated our findings within broader disciplinary and theoretical frameworks.