A number of large episcopal churches (e.g. United Methodist Church, USA) have maintained a succession over 200 years but are not concerned to claim that the succession goes back in unbroken line to the time of the first Apostles. Very many other major episcopal churches, however-Roman Catholic, Orthodox, Old Catholic, Anglican, Scandinavian Lutheran-do make this claim and contend that a bishop cannot have regular or valid orders unless he has been consecrated in this apostolic succession. ↑ Melton, J. Gordon (2005). Encyclopedia of Protestantism.