Charles E. Grinnell

Charles E. Grinnell was a nineteenth-century American theologian whose critical examination of religious extremism in *Fanaticism* contributed significantly to Protestant intellectual discourse on the boundaries between authentic faith and destructive zealotry. His work emerged during a period of American religious ferment marked by revivalism and sectarian proliferation, offering a measured theological perspective on the dangers of unchecked religious enthusiasm. Grinnell's scholarly interventions helped establish frameworks for distinguishing legitimate spiritual conviction from pathological religious expression within American theological thought.