Within Christianity, the use of pre-assigned, scheduled readings from the scriptures can be traced back to the early church, and seems to have developed out of the practices of the second temple period. The earliest documentary record of a special book of readings is a reference by Gennadius of Massilia to a work produced at the request of Bishop Venerius of Marseilles, who died in 452, though there are 3rd-century references to liturgical readers as a special role in the clergy. Not all of the Christian Church used the same lectionary, and throughout history, many varying lectionaries have been used in different parts of the Christian world. Until the Second Vatican Council, most Western Christians (Catholics, Old Catholics, Anglicans, Lutherans, and those Methodists who employed the lectionary of Wesley) used a lectionary that repeated on a one-year basis. This annual lectionary provided readings for Sundays and, in those Churches that celebrated the festivals of saints, feast-day readings. The Eastern Orthodox Church and many of the Oriental Churches continue to use an annual lectionary. Within Lutheranism there remains an active minority of pastors and congregations who use the old one-year lectionary, often referred to as the Historic Lectionary. The Reformed churches divided the Heidelberg Catechism into 52 weekly sections, and many churches preach or teach from a corresponding source scripture weekly.