The Lutheran Calendar of Saints is a listing which specifies the primary annual festivals and events that are celebrated liturgically by some Lutheran Churches in the United States. The calendars of the Evangelical Lutheran Church in America (ELCA) and the Lutheran Church - Missouri Synod (LCMS) are from the 1978 Lutheran Book of Worship and the 1982 Lutheran Worship. Elements unique to the ELCA have been updated from the Lutheran Book of Worship to reflect changes resulting from the publication of Evangelical Lutheran Worship in 2006. The elements of the calendar unique to the LCMS have also been updated from Lutheran Worship and the Lutheran Book of Worship to reflect the 2006 publication of the Lutheran Service Book.