Origin of the Eucharist the "Didache", "1 Clement" and Ignatius of Antioch provide glimpses of what Christians were doing in their eucharists. Later sources, Tertullian and the "Apostolic Tradition", offer some details from around the year 200. Once the Church "went public" after the conversion of Constantine the Great in the second decade of the fourth century, it was clear that the Eucharist was established as a central part of Christian life. Contemporary scholars debate whether Jesus meant to institute a ritual at his Last Supper; whether the Last Supper was an actual historical event in any way related to the undisputed early "Lord's
Christian culture In Christian belief and practice, a "sacrament" is a rite, instituted by Christ, that mediates grace, constituting a sacred mystery. The term is derived from the Latin word "sacramentum", which was used to translate the Greek word for "mystery". Views concerning both what rites are sacramental, and what it means for an act to be a sacrament vary among Christian denominations and traditions. The most conventional functional definition of a sacrament is that it is an outward sign, instituted by Christ, that conveys an inward, spiritual grace through Christ. The two most widely accepted sacraments are Baptism and the Eucharist