History‑rich schools curb polarization

A sustained, content‑heavy civic and history curriculum that teaches shared facts, canonical texts, and virtue can rebuild common civic knowledge and reduce political polarization by giving citizens a common narrative and intellectual tools for disagreement. Implementing this requires refocusing teacher preparation on subject mastery, restoring coherent K–12 history sequences, and rethinking assessments and admissions incentives. — If true, curricular and credential policy (teacher prep, standards, admissions tests) become central levers for democratic resilience and should be prioritized in education and political debates.