In the early centuries of Christianity, ordination was the process and the ceremony by which one moved to any new ministry (ordo) in the community. By this definition, women were in fact ordained into several ministries. A radical change in the definition of ordination during the eleventh and twelfth centuries not only removed women from the ordained ministry, but also attempted to eradicate any memory of women's ordination in the past. The debate that accompanied this change has left its mark in the literature of the time. However, the triumph of a new definition of ordination as the bestowal of power, particularly the power to confect the Eucharist, so thoroughly dominated western thought and practice by the thirteenth century that the earlier concept of ordination was almost completely erased. The ordination of women, either in the present or in the past, became unthinkable.