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
Eucharist inward spiritual experience of their adherents over any outward ritual, Quakers (members of the Religious Society of Friends) generally do not baptize or observe Communion. Christian denominations differ in their understanding of whether they may receive the Eucharist with those with whom they are not in full communion. The famed apologist St. Justin Martyr (c. 150) wrote: "No one else is permitted to partake of it, except one who believes our teaching to be true..." For the first several hundred years, non-members were forbidden even to be present at the sacramental ritual; visitors and catechumens (those still undergoing instruction) were