A high-rigor, bilingual civic trial where students judge the League of Nations using historical evidence — not hindsight. Power on Trial: League of Nations is a high-rigor, bilingual (English/Spanish) civic trial simulation that asks students to evaluate whether the League of Nations was capable of maintaining peace during the interwar period (1919–1936). Rather than reenacting history, students judge an institution using historical evidence, structured roles, and formal deliberation. There is