Originally bishops were chosen by popular election; but the right was gradually engrossed, first by the provincial bishops, then by the cathedral chapter, and eventually by the Pope. Usually on the Continent the Crown now appoints Bishops. In England the Pope appoints Roman Catholic Bishops subject to a recommendation of the Chapter. In Russia the Czar nominates, usually from a list submitted by the Synod. In the Turkish Empire the Sultan confirms the election.
In the Eastern and Roman Catholic Churches the power of the bishop is much as it was in the 3rd century, subject to the rise of patriarchs and metropolitans, and, since the beginning of the present century, to the various concordats that have limited the power of the Roman Catholic Church in Western Europe. The bishop alone has the power of consecration and ordination. He must visit every part of his diocese once every two years. He has the general superintendence of divine worship, and makes regulations for his diocese subject to the common law of the Church. He can dispense from these, and in some slight degree from the laws of the Church. He decides, in the first instance, all ecclesiastical causes. He consecrates churches, and instruments of worship (e.g. chalices). He can suspend the clergy and excommunicate the laity of his diocese, and (except of course where the Church receives a subvention from the State in lieu of endowments, as in France and Italy) he administers the diocesan property subject to the Councils of the Church and the Metropolitan, and in the Roman Catholic Church to the Pope. His title is "Most illustrious and reverend lord." His insignia are pastoral staff, mitre (probably alluded to by Eusebius), ring, pectoral cross, episcopal throne, pontifical vestments, gloves, and sandals.
At the Reformation the Anglican and Scandinavian Churches retained some bishops when they broke with Rome, and the title has therefore been continued in them. The Lutheran Church retained it for a time, and the modern "superintendent" exercises a kind of episcopal function. The "Protestant Episcopal Church of the United States of America" (the American branch of the Anglican Church) had its first bishop, Seabury, consecrated in Scotland in 1784, and its next two, White and Provost (after some little difficulty owing to the rupture with England), at Lambeth Palace. The Scottish Episcopal Church has been a voluntary body since 1688, when all the Scottish bishops joined the Nonjurors (q.v.); the Irish Episcopal Church was disestablished by Mr. Gladstone's Act in 1868.
Recent years have seen an immense development of the Anglican Episcopate. There are now 2 archbishops and 32 bishops of English sees, besides 74 colonial, Indian, etc., and 10 missionary bishops. The "Church of England in Ireland" has 2 archbishops and 11 bishops; the Scottish Episcopal Church 7 bishops; the "Protestant Episcopal Church" of the United States 70 bishops altogether, including coadjutor and missionary bishops.
In England the Act 26 Henry VIII. c. 14 provides for the consecration of suffragan or assistant bishops to relieve those bishops of dioceses who are overworked or infirm. This Act was revived in the present reign; the number of suffragan bishops in addition to the above is now 16. In the American Church it is also the custom to consecrate suffragan or coadjutor bishops, with the prospect, however, of succession to the see. Suffragan bishops in England have no seat in the House of Lords, and are not usually termed "lord bishops." Of the English sees, Gloucester, Chester, Peterborough, and Oxford were created in 1541; Bristol in 1542; a see of Westminster was created in 1540 but dissolved in 1550; Ripon was created in 1836, when Gloucester and Bristol were united. New sees have been recently created by voluntary effort: Truro and St. Albans in 1877, Liverpool in 1880, Newcastle in 1882, Southwell in 1883. Such creation (by an Act of 1847) is not allowed to increase the number of lords spiritual. The two Archbishops and the Bishops of London, Durham, and Winchester, always sit in the House of Lords, and 21 of the remainder are summoned in order of seniority. For the mode of election see Conge d'Elire. The dress of an English bishop consists of a rochet, which is practically a surplice without sleeves, over which is worn the chimere of black satin, with the well-known lawn sleeves.
In 1850 a papal bull was issued appointing Roman Catholic archbishops and bishops with territorial titles in England. This caused great alarm, and an Ecclesiastical Titles Act was passed in 1851 by Lord John Russell imposing penalties for the assumption of such titles. But the Act proved a dead letter and was repealed in 1871. Previously the English Roman Catholic bishops had been, according to a usual custom, bishops in partibus infidelium, with sees that were purely titular, e.g. Chalcedon, Gaza, etc. Thus episcopal functions are exercised in London by a prelate with the title of Bishop of Emmaus.