The Virgin Mary is a prevalent yet enigmatic figure in Christian tradition. Although little information about her life is included in the canonical gospels, there is a tradition of popular Mariology that permeates all periods of Christian history. All Christian denominations agree that Mary is the human mother of God; however, controversies exist over details regarding her particular role in salvation history. Aspects of Mariology have been explored and approached by theologians interested in Catholic doctrine, ecumenical and interfaith dialogue, gender, and the role of women in Christian churches.