Worship in the Disciples of Christ denomination was shaped by the conditions of the American frontier during the early nineteenth century. Only in the second half of the twentieth century has the widespread use of the Christian year appeared. A worship calendar that became popular in the 1950s helped prepare the way, combining some historic Christian festivals with national and denominational observances. Since the 1960s, Disciples’ participation in ecumenical worship renewal has encouraged the full embrace of the Christian year.