Christianity reshaped Europe not by replacing Rome’s legions but by moving moral discipline inward. When the Western Empire collapsed, the Church stepped into the vacuum with a new kind of authority — one rooted in conscience, guilt, and self-surveillance. The West has lived inside this psychological framework ever since, from medieval confession to modern moral panics.
After 1945, Europe rebuilt not only its cities but also its conscience. What began in Germany as a reckoning with absolute evil became a continental project — the attempt to redeem civilisation through democracy, human rights, and reason. This essay traces that moral arc from guilt to responsibility, from rebellion to fatigue, and from faith in redemption to the disillusionment of the present.