Three new Eucharistic Prayers As noted above, three new Eucharistic Prayers were introduced as alternatives to the Roman Canon (known as "Eucharistic Prayer I" within the missal), which had for 1,600 years been the only Eucharistic Prayer of the Roman Rite. After , between the years 1963 and 1968 there were private initiatives by liberal reformers to either revise the Roman Canon, or to create new Eucharistic Prayers. Hans Küng and Karl Amon both published articles demanding this. In addition, the Bishops' Conference of the Netherlands under Johannes Bluyssen, around 1965–1966, did not wait for the Canon to be permitted in the vernacular and started experimenting with their own translations and adding new "Eucharistic Prayers", then asking for permission from Rome to do so after the fact, causing political pressure. Benedictine member of the Cipriano Vagaggini, while noting what he called the Roman Canon's "undeniable defects", concluded that its suppression was unthinkable; he proposed that it be retained but that two further Eucharistic Prayers be added. The General Instruction of the Roman Missal of 1969 states that the "Eucharistic Prayer I" (the Roman Canon) may always be used, including on Sundays, but it rarely is in local diocesan parishes since 1969–1970.
Three new Eucharistic Prayers As noted above, three new Eucharistic Prayers were introduced as alternatives to the Roman Canon (known as "Eucharistic Prayer I" within the missal), which had for 1,600 years been the only Eucharistic Prayer of the Roman Rite. After  between the years 1963 and 1968 there were private initiatives by liberal reformers to either revise the Roman Canon, or to create new Eucharistic Prayers. Hans Küng and Karl Amon both published articles demanding this. In addition, the Bishops' Conference of the Netherlands under Johannes Bluyssen, around 1965–1966, did not wait for the Canon to be permitted in the vernacular and started experimenting with their own translations and adding new "Eucharistic Prayers", then asking for permission from Rome to do so after the fact, causing political pressure. Benedictine member of the Cipriano Vagaggini, while noting what he called the Roman Canon's "undeniable defects", concluded that its suppression was unthinkable; he proposed that it be retained but that two further Eucharistic Prayers be added. The General Instruction of the Roman Missal of 1969 states that the "Eucharistic Prayer I" (the Roman Canon) may always be used, including on Sundays, but it rarely is in local diocesan parishes since 1969–1970.