March 12th in Christ

Notable events in Christian history on March 12th include:

604: Death of Pope Gregory I (Gregory the Great)—a key figure who shaped the papacy, liturgy (Gregorian chant), and missionary work to England (traditional date).
1022: Death of Symeon the New Theologian—a Byzantine mystic and theologian whose writings on divine light influenced Eastern Orthodox spirituality (traditional date).
1522: Martin Luther preached in Wittenberg after leaving Wartburg Castle, calming radical Reformation unrest and reinforcing his leadership.
An unexpected detail is that Symeon’s designation as “N