Roman imperial rule inspired the universalist ideology of the medieval church

Evidence

The long dominion of Rome accustomed men to the idea of a single civilization under a single government. … The conception of one human family, one Catholic religion, one universal culture, and one worldwide State, has haunted men’s thoughts ever since its approximate realization by Rome. — Bertrand Russell, History of Western Philosophy, 1130

Categorization

• XREF: XREF connects to the origins of the Holy Roman Empire and Catholic Church universality. — connects to: Augustine provided the theoretical justification for medieval papal supremacy — Bertrand Russell, History of Western Philosophy, 1432; The Catholic Church blended diverse historical, religious, and administrative traditions for strength — Bertrand Russell, History of Western Philosophy, 1817; Calvinism’s economic ethic is really classical republicanism, not Protestantism (+1 more)
• corroborated: 2 independent passages support this claim — Bertrand Russell, History of Western Philosophy, 1130

Broader Connections

• Augustine provided the theoretical justification for medieval papal supremacy #corroborates (0.50) — Bertrand Russell, History of Western Philosophy, 1432
• The Catholic Church blended diverse historical, religious, and administrative traditions for strength #corroborates (0.45) — Bertrand Russell, History of Western Philosophy, 1817