Christian symbolism

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Christian symbolism is the use of symbols, including archetypes, acts, artwork or events, by Christianity. It invests objects or actions with an inner meaning expressing Christian ideas.

The symbolism of the early Church was characterized by being understood by initiates only,[1] while after the legalization of Christianity in the 4th-century more recognizable symbols entered in use. Christianity has borrowed from the common stock of significant symbols known to most periods and to all regions of the world.[2]

Christianity has not generally practiced Aniconism, or the avoidance or prohibition of types of images, even if the early Jewish Christians sects, as well as some modern denominations, preferred to some extent not to use figures in their symbols, by invoking the Decalogue's prohibition of idolatry.

Early Christian symbols[edit]

Cross and crucifix[edit]

Main article: Christian cross
The Crucifix, a cross with corpus, a symbol used by the Catholic Church, in Lutheranism, Eastern Orthodoxy, and Anglicanism, in contrast with some Protestant denominations, which use only a bare cross.
Early use of a globus cruciger on a solidus minted by Leontios (r. 695–698); on the obverse, a stepped cross in the shape of a Iota Eta monogram.

The shape of the cross, as represented by the letter T, came to be used as a "seal" or symbol of Early Christianity by the 2nd century.[3] At the end of the 2nd century, it is mentioned in the Octavius of Minucius Felix, rejecting the claim by detractors that Christians worship the cross.[4] The cross (crucifix, Greek stauros) in this period was represented by the letter T. Clement of Alexandria in the early 3rd century calls it τὸ κυριακὸν σημεῖον ("the Lord's sign") he repeats the idea, current as early as the Epistle of Barnabas, that the number 318 (in Greek numerals, ΤΙΗ) in Genesis 14:14 was a foreshadowing (a "type") of the cross (T, an upright with crossbar, standing for 300) and of Jesus (ΙΗ, the first two letters of his name ΙΗΣΟΥΣ, standing for 18).[5]

Clement's contemporary Tertullian also rejects the accusation that Christians are crucis religiosi (i.e. "adorers of the gibbet"), and returns the accusation by likening the worship of pagan idols to the worship of poles or stakes.[6] In his book De Corona, written in 204, Tertullian tells how it was already a tradition for Christians to trace repeatedly on their foreheads the sign of the cross.[7]

While early Christians used the T-shape to represent the cross in writing and gesture, the use of the Greek cross and Latin cross, i.e. crosses with intersecting beams, appears in Christian art towards the end of Late Antiquity. An early example of the cruciform halo, used to identify Christ in paintings, is found in the Miracles of the Loaves and Fishes mosaic of Sant'Apollinare Nuovo, Ravenna (dated c. 504).

Instances of the St Thomas cross, a Greek cross with clover leaf edges, popular in southern India,[8] date to about the 6th century.[citation needed]

The Patriarchal cross, a Latin cross with an additional horizontal bar, first appears in the 10th century.

Although the cross was used as a symbol by early Christians, the crucifix, i.e. depictions of the crucifixion scene, were rare prior to the 5th century; some engraved gems thought to be 2nd or 3rd century have survived, but the subject does not appear in the art of the Catacombs of Rome.[9] The purported discovery of the True Cross by Constantine's mother, Helena, and the development of Golgotha as a site for pilgrimage led to a change of attitude. It was probably in Palestine that the image developed, and many of the earliest depictions are on the Monza ampullae, small metal flasks for holy oil, that were pilgrim's souvenirs from the Holy Land, as well as 5th century ivory reliefs from Italy.[10] In the early medieval period, the plain cross became depicted as the crux gemmata, covered with jewels, as many real early medieval processional crosses in goldsmith work were. The first depictions of crucifixion displaying suffering are believed to have arisen in Byzantine art,[11] where the "S"-shaped slumped body type was developed. Early Western examples include the Gero Cross and the reverse of the Cross of Lothair, both from the end of the 10th century.

Marie-Madeleine Davy (1977) described in great detail Romanesque Symbolism as it developed in the Middle Ages in Western Europe.[12]

Ichthys Ichthys symbol.svg[edit]

Main article: Ichthys
An Ichthys from ancient Ephesus

Among the symbols employed by the early Christians, that of the fish seems to have ranked first in importance. Its popularity among Christians was due principally to the famous acrostic consisting of the initial letters of five Greek words forming the word for fish (Ichthus), which words briefly but clearly described the character of Christ and the claim to worship of believers: "ησοῦς Χριστὸς Θεοῦ Υἱὸς Σωτήρ", (Iēsous Christos Theou Huios Sōtēr), meaning, Jesus Christ, Son of God, Saviour.[13] This explanation is given among others by Augustine in his Civitate Dei,[14] where he also notes that the generating sentence "Ίησοῦς Χρειστὸς [sic] Θεοῦ Υἱὸς Σωτήρ" has 27 letters, i.e. 3 x 3 x 3, which in that age indicated power.

Alpha and Omega Α Ω[edit]

Jesus depicted with the alpha and omega letters in the catacombs of Rome from the 4th century
Main article: Alpha and Omega

The use since the earliest Christianity of the first and the last letters of the Greek alphabet, alpha (α or Α) and omega (ω or Ω), derives from the statement said by Jesus (or God) himself "I am Alpha and Omega, the First and the Last, the Beginning and the End" (Revelation 22:13, also 1:8 and 21:6).

Staurogram Christliche Symbolik (Menzel) I 193 2.jpg[edit]

Main article: Staurogram
A staurogram used as τρ-ligature part of the spelling of the word σταυρον (as ϲ(τρ)ον) in Luke 14:27 (Papyrus Bodmer XIV-XV, 2nd century)

The Staurogram ⳨ (from the Greek σταυρός, i.e. cross), also Monogrammatic Cross or Tau-Rho symbol, is composed by a tau (Τ) superimposed on a rho (Ρ). The Staurogram was first used to abbreviate the Greek word for cross in very early New Testament manuscripts such as P66, P45 and P75, almost like a nomen sacrum, and may visually have represented Jesus on the cross.[15]

Ephrem the Syrian in the 4th-century explained these two united letters stating that the tau refers to the cross, and the rho refers to the Greek word "help" (Βoήθια [sic]; proper spelling: Βoήθεια) which has the numerological value in Greek of 100 as the letter rho has. In such a way the symbol expresses the idea that the Cross saves.[15] The two letters tau and rho can also be found separately as symbols on early Christian ossuaries.[16]

The Monogrammatic Cross was later seen also as a variation of the Chi Rho symbol, and it spread over Western Europe in the 5th and 6th centuries.[17]

Chi Rho Christliche Symbolik (Menzel) I 193 1.jpg[edit]

The Chi-Rho symbol , Catacombs of San Callisto, Rome
Main article: Chi Rho

The Chi Rho is formed by superimposing the first two (capital) letters chi and rho (ΧΡ) of the Greek word "ΧΡΙΣΤΟΣ" =Christ in such a way to produce the monogram. Widespread in ancient Christianity, it was the symbol used by the Roman emperor Constantine I as vexillum (named Labarum).

IH Monogram IH Monogram with iota and eta superimposed.jpg[edit]

The first two letters of the name of Jesus in Greek, iota (Ι) and eta (Η), sometime superimposed one on the other, or the numeric value 18 of ΙΗ in Greek, was a well known and very early way to represent Christ.[18] This symbol was already explained in the Epistle of Barnabas and by Clement of Alexandria.[5] For other christograms such as IHS, see Article Christogram.

IX Monogram Christliche Symbolik (Menzel) I 193 4.jpg[edit]

A IX Monogram from a 4th century Sarcophagus from Constantinople

An early form of the monogram of Christ, found in early Christian ossuaries in Palestinia, was formed by superimposing the first (capital) letters of the Greek words for Jesus and Christ, i.e. iota Ι and chi Χ, so that this monogram means "Jesus Christ".[16]:166 Another more complicated explanation of this monogram was given by Irenaeus[19] and Pachomius: because the numeric value of iota is 10 and the chi is the initial of the word "Christ" (Greek: ΧΡΕΙΣΤΟΣ [sic]; proper spelling: ΧΡΙΣΤΟΣ) which has 8 letters, these early fathers calculate 888 ((10*8)*10)+((10*8)+8) which was a number already known to represent Jesus, being the sum of the value of the letters of the name "Jesus" (IHΣΟΥΣ) (10+8+200+70+400+200).[16]:169–170

Other Christian symbols[edit]

The Good Shepherd[edit]

A 3rd-century painting of the Good Shepherd in the Catacomb of Callixtus.
Main article: Good Shepherd

The image of the Good Shepherd, often with a sheep on his shoulders, is the most common of the symbolic representations of Christ found in the Catacombs of Rome, and it is related to the Parable of the Lost Sheep. Initially it was also understood as a symbol like others used in Early Christian art. By about the 5th century the figure more often took on the appearance of the conventional depiction of Christ, as it had developed by this time, and was given a halo and rich robes.

Dove[edit]

A dove with an olive branch, Catacombs of Domitilla, Rome

The dove as a Christian symbol is of very frequent occurrence in ancient ecclesiastical art.[20] According to Matthew 3:16, during the Baptism of Jesus the Holy Spirit descended like a dove and came to rest on Jesus. For this reason the dove became a symbol of the Holy Spirit and in general it occurs frequently in connection with early representations of baptism. It signifies also the Christian soul, not the human soul as such, but as indwelt by the Holy Spirit; especially, therefore, as freed from the toils of the flesh and entered into rest and glory.[2] The Peristerium or Eucharistic dove was often used in the past, and sometime still used in Eastern Christianity, as Church tabernacle.

However the more ancient explanation of the dove as a Christian symbol refers to it as a symbol of Christ: Irenaeus[21] in the 2nd century explains that the number 801 is both the numerological value of the sum in Greek of the letters of the word "dove" (Greek: περιστερά) and the sum of the values of the letters Alpha and Omega, which refers to Christ. In the Bible story of Noah and the Flood, after the flood a dove returns to Noah bringing an olive branch as a sign that the water had receded, and this scene recalled to the Church Fathers Christ who brings salvation through the cross. This biblical scene led to interpreting the dove also as a symbol of peace.

Peacock[edit]

Two peacocks, symbolizing paradise and immortality, on a fragment from an eighth century ciborium from a church in Italy

Ancient Greeks believed that the flesh of peafowl did not decay after death, and so it became a symbol of immortality. This symbolism was adopted by early Christianity, and thus many early Christian paintings and mosaics show the peacock. The peacock is still used in the Easter season especially in the east.[22] The "eyes" in the peacock's tail feathers symbolise the all-seeing God and - in some interpretations - the Church. A peacock drinking from a vase is used as a symbol of a Christian believer drinking from the waters of eternal life. The peacock can also symbolise the cosmos if one interprets its tail with its many "eyes" as the vault of heaven dotted by the sun, moon, and stars. By adoption of old Persian and Babylonian symbolism, in which the peacock was associated with Paradise and the Tree of Life, the bird is again associated with immortality. In Christian iconography the peacock is often depicted next to the Tree of Life.

Pelican[edit]

A pelican vulning itself.
Main article: Pelican

In medieval Europe, the pelican was thought to be particularly attentive to her young, to the point of providing her own blood by wounding her own breast when no other food was available. As a result, the pelican became a symbol of the Passion of Jesus and of the Eucharist since about the 12th century.[23]

Anchor Anchor pictogram.svg[edit]

The Christians adopted the anchor as a symbol of hope in future existence because the anchor was regarded in ancient times as a symbol of safety. For Christians, Christ is the unfailing hope of all who believe in him: Saint Peter, Saint Paul, and several of the early Church Fathers speak in this sense. The Epistle to the Hebrews 6:19-20 for the first time connects the idea of hope with the symbol of the anchor.[24]

A fragment of inscription discovered in the catacomb of St. Domitilla contains the anchor, and dates from the end of the 1st century. During the 2nd and 3rd centuries the anchor occurs frequently in the epitaphs of the catacombs. The most common form of anchor found in early Christian images was that in which one extremity terminates in a ring adjoining the cross-bar while the other ends in two curved branches or an arrowhead; There are, however, many deviations from this form.[24] In general the anchor can symbolize hope, steadfastness, calm and composure.[25]

Shamrock[edit]

St. Patrick depicted with shamrock in detail of stained glass window in St. Benin's Church, Wicklow, Ireland

Traditionally, the shamrock is said to have been used by Saint Patrick to illustrate the Christian doctrine of the Holy Trinity when Christianising Ireland in the 5th century.[26]

Elemental symbols[edit]

Elemental symbols were widely used by the early Church. Water has specific symbolic significance for Christians. Outside of baptism, water may represent cleansing or purity. Fire, especially in the form of a candle flame, represents both the Holy Spirit and light. The sources of these symbols derive from the Bible; for example from the tongues of fire that symbolized the Holy Spirit at Pentecost, and from Jesus' description of his followers as the light of the world; or God is a consuming fire found in Hebrews 12.[27]

Lily crucifix[edit]

Lily Crucifix at Holy Trinity Church, Long Melford, Suffolk
The coat of arms of the Anglican diocese of Trinidad contains several Christian visual symbols

A lily crucifix is a rare symbol of Anglican churches in England. It depicts Christ crucified on a lily, or holding such a plant. The symbolism may be from the medieval belief that the Annunciation of Christ and his crucifixion occurred on the same day of the year, March 25.[28]

There are few depictions of a lily crucifix in England. One of the most notable is a painting on a wall above the altar at All Saint's Church, Godshill, Isle of Wight. Other examples include:

Tomb paintings[edit]

Christians from the very beginning adorned their catacombs with paintings of Christ, of the saints, of scenes from the Bible and allegorical groups. The catacombs are the cradle of all Christian art.[30] Early Christians accepted the art of their time and used it, as well as a poor and persecuted community could, to express their religious ideas.[30]

From the second half of the 1st century to the time of Constantine the Great they buried their dead and celebrated their rites in these underground chambers. The Christian tombs were ornamented with indifferent or symbolic designs—palms, peacocks, with the chi-rho monogram, with bas-reliefs of Christ as the Good Shepherd, or seated between figures of saints, and sometimes with elaborate scenes from the New Testament.[30]

Other Christian symbols include the dove (symbolic of the Holy Spirit), the sacrificial lamb (symbolic of Christ's sacrifice), the vine (symbolizing the necessary connectedness of the Christian with Christ) and many others. These all derive from the writings found in the New Testament.[27] Other decorations that were common included garlands, ribands, stars landscapes, which had symbolic meanings, as well.[30]

Symbols of Christian Churches[edit]

Baptism in early Christian art.

Sacraments[edit]

Some of the oldest symbols in the Christian church are the sacraments, the number of which vary between denominations. Always included are Eucharist and baptism. The others which may or may not be included are ordination, unction, confirmation, penance and marriage. They are together commonly described as an outward and visible sign of an inward and spiritual grace or, as in the Roman Catholic system, "outward signs and media of grace."[31]

The rite is seen as a symbol of the spiritual change or event that takes place. In the Eucharist, the bread and wine are symbolic of the body and shed blood of Jesus, and in Roman Catholicism, become the actual Body of Christ and Blood of Christ through Transubstantiation.[31]

The rite of baptism is symbolic of the cleansing of the sinner by God, and, especially where baptism is by immersion, of the spiritual death and resurrection of the baptized person. Opinion differs as to the symbolic nature of the sacraments, with some Protestant denominations considering them entirely symbolic, and Roman Catholics, Orthodox, Lutherans, and some Reformed Christians believing that the outward rites truly do, by the power of God, act as media of grace.[31]

Icons[edit]

The tomb paintings of the early Christians led to the development of icons. An icon is an image, picture, or representation; it is likeness that has symbolic meaning for an object by signifying or representing it, or by analogy, as in semiotics. The use of icons, however, was never without opposition. It was recorded that, "there is no century between the fourth and the eighth in which there is not some evidence of opposition to images even within the Church.[32][page needed] Nonetheless, popular favor for icons guaranteed their continued existence, while no systematic apologia for or against icons, or doctrinal authorization or condemnation of icons yet existed.

Christ and Saint Menas. A 6th-century icon. (Musée du Louvre)

Though significant in the history of religious doctrine, the Byzantine controversy over images is not seen as of primary importance in Byzantine history. "Few historians still hold it to have been the greatest issue of the period..."[33][page needed]

The Byzantine Iconoclasm began when images were banned by Emperor Leo III the Isaurian sometime between 726 and 730. Under his son Constantine V, a council forbidding image veneration was held at Hieria near Constantinople in 754. Image veneration was later reinstated by the Empress Regent Irene, under whom another council was held reversing the decisions of the previous iconoclast council and taking its title as Seventh Ecumenical Council. The council anathematized all who held to iconoclasm, i.e. those who held that veneration of images constitutes idolatry. Then the ban was enforced again by Leo V in 815. And finally icon veneration was decisively restored by Empress Regent Theodora.

Today icons are used particularly among Eastern Orthodox, Oriental Orthodox, Assyrian and Eastern Catholic Churches.

See also[edit]

References[edit]

  1. ^ Jenner, Henry (2004) [1910]. Christian Symbolism. Kessinger Publishing. p. xiv. 
  2. ^ a b Wikisource-logo.svg Herbert Thurston (1913). "Symbolism". In Herbermann, Charles. Catholic Encyclopedia. New York: Robert Appleton Company. 
  3. ^ "The cross as a Christian symbol or 'seal' came into use at least as early as the second century (see "Apost. Const." iii. 17; Epistle of Barnabas, xi.-xii.; Justin, "Apologia," i. 55-60; "Dial. cum Tryph." 85-97); and the marking of a cross upon the forehead and the chest was regarded as a talisman against the powers of demons (Tertullian, "De Corona," iii.; Cyprian, "Testimonies," xi. 21-22; Lactantius, "Divinæ Institutiones," iv. 27, and elsewhere). Accordingly the Christian Fathers had to defend themselves, as early as the second century, against the charge of being worshipers of the cross, as may be learned from Tertullian, "Apologia," xii., xvii., and Minucius Felix, "Octavius," xxix. Christians used to swear by the power of the cross. CROSS:, Jewish Encyclopaedia.
  4. ^ "Crosses, moreover, we neither worship nor wish for.1815 You, indeed, who consecrate gods of wood, adore wooden crosses perhaps as parts of your gods. For your very standards, as well as your banners; and flags of your camp, what else are they but crosses glided and adorned? Your victorious trophies not only imitate the appearance of a simple cross, but also that of a man affixed to it. We assuredly see the sign of a cross,1816 naturally, in the ship when it is carried along with swelling sails, when it glides forward with expanded oars; and when the military yoke is lifted up, it is the sign of a cross; and when a man adores God with a pure mind, with hands outstretched. Thus the sign of the cross either is sustained by a natural reason, or your own religion is formed with respect to it." Cruces etiam nec colimus, nec optamus. Vos plane qui ligneos deos consecratis, cruces ligneas, ut deorum vestrorum partes, forsitan adoratis. (0332B) Nam et signa ipsa et cantabra et vexilla castrorum, quid aliud quam inauratae cruces sunt et ornatae? Tropaea vestra victricia, non tantum simplicis crucis faciem, verum et affixi hominis imitantur. Signum sane crucis naturaliter visimus in navi, quum velis tumentibus vehitur, quum expansis palmulis labitur; et quum erigitur iugum, crucis signum est, et quum homo, porrectis manibus, Deum pura mente veneratur. Ita signo crucis aut ratio naturalis innititur, aut vestra religio formatur. (Octavius of Minucius Felix, chapter 29)
  5. ^ a b Stromata, book VI, chapter XI
  6. ^ Apology., chapter xvi. Tertullian uses crux "cross", palus "pole" and stipes "stake" interchangeably for rhetoric effect: "Then, if any of you think we render superstitious adoration to the cross, in that adoration he is sharer with us. If you offer homage to a piece of wood at all, it matters little what it is like when the substance is the same: it is of no consequence the form, if you have the very body of the god. And yet how far does the Athenian Pallas differ from the stock of the cross, or the Pharian Ceres as she is put up uncarved to sale, a mere rough stake and piece of shapeless wood? Every stake fixed in an upright position is a portion of the cross; we render our adoration, if you will have it so, to a god entire and complete. We have shown before that your deities are derived from shapes modelled from the cross." Sed et qui crucis nos religiosos putat, consecraneus noster erit. Cum lignum aliquod propitiatur, viderit habitus, dum materiae qualitas eadem sit; viderit forma, dum id ipsum dei corpus sit. Et tamen quanto distinguitur a crucis stipite Pallas Attica, et Ceres Pharia, quae sine effigie rudi palo et informi ligno prostat? Pars crucis est omne robur, quod erecta statione defigitur; nos, si forte, integrum et totum deum colimus. Diximus originem deorum vestrorum a plastis de cruce induci.
  7. ^ "At every forward step and movement, at every going in and out, when we put on our clothes and shoes, when we bathe, when we sit at table, when we light the lamps, on couch, on seat, in all the ordinary actions of daily life, we trace upon the forehead the sign" (De Corona, chapter 3)
  8. ^ see: "Granite Objects in Kerala Churches", in Glimpses of Nazraney Heritage, George Menachery, SARAS, 2005; and "Thomas Christian Architecture", in George Menachery, ed. The St. Thomas Christian Encyclopaedia of India, Vol. 2, 1973
  9. ^ Schiller, Gertrud, Iconography of Christian Art, Vol. II, 1972, 89-90, fig. 321.
  10. ^ Schiller, Gertrud, Iconography of Christian Art, Vol. II, 1972, 89-90, figs. 322-326.
  11. ^ Encyclopaedia Britannica Online
  12. ^ M.-M. Davy, Initiation à la Symbolique Romane. Nouv. éd. Paris: Flammarion, 1977.
  13. ^ Wikisource-logo.svg Maurice Hassett (1913). "Symbolism of the Fish". In Herbermann, Charles. Catholic Encyclopedia. New York: Robert Appleton Company. 
  14. ^ Augustine. Wikisource link to The City of God. Wikisource. XVIII, 23. 
  15. ^ a b Hurtado, Larry (2006). "The Staurogram in Early Christian Manuscripts: the earliest visual reference to the crucified Jesus?". In Kraus, Thomas. New Testament Manuscripts. Leiden: Brill. pp. 207–26. ISBN 978-90-04-14945-8. 
  16. ^ a b c Bagatti, Bellarmino (1984). The Church from the Circumcision: history and archaeology of the Judaeo-Christians. Studium Biblicum Franciscanum, Collectio Minor, n.2. Jerusalem. 
  17. ^ Redknap, Mark (1991). The Christian Celts: treasures of late Celtic Wales. Cardiff: National Museum of Wales. p. 61. ISBN 978-0-7200-0354-3. 
  18. ^ Hurtado, Larry (2006). The earliest Christian artifacts : manuscripts and Christian origins. William B. Eerdmans Pub. Co. pp. 114–115. ISBN 978-0-8028-2895-8. 
  19. ^ Irenaeus, Adv Haer, 1.15.2
  20. ^ Wikisource-logo.svg Arthur Barnes (1913). "Dove". In Herbermann, Charles. Catholic Encyclopedia. New York: Robert Appleton Company. 
  21. ^ Irenaeus, Adv Haer, 1.15.6
  22. ^ "Birds, symbolic." Peter and Linda Murray, Oxford Dictionary of Christian Art (2004).
  23. ^ Jenner, Henry (2004) [1910]. Christian Symbolism. Kessinger Publishing. p. 37. 
  24. ^ a b Wikisource-logo.svg Maurice Hassett (1913). "The Anchor (as Symbol)". In Herbermann, Charles. Catholic Encyclopedia. New York: Robert Appleton Company. 
  25. ^ Klöpping, Laura (2012). Customs, Habits and Symbols of the Protestant Religion. GRIN Verlag. p. 5. ISBN 978-3-656-13453-4. 
  26. ^ Treeck, Carl Van; Croft, Aloysius (1936). Symbols in the Church. Bruce Publishing Co. St. Patrick is said to have used the shamrock in explaining to the pagan Irish the idea of the Holy Trinity. 
  27. ^ a b Dilasser, Maurice. The Symbols of the Church (1999). Collegeville, MN: Liturgical Press, hardcover: ISBN 0-8146-2538-X
  28. ^ The Passion in Art. Richard Harries. Ashgate Publishing, Ltd., 2004
  29. ^ "St John the Baptist, Wellington". Wellington and District Team Ministry. Retrieved 1 September 2011. 
  30. ^ a b c d Fortescue, Adrian (1912). "Veneration of Images". Catholic Encyclopedia. Robert Appleton Company. Retrieved 2007-11-26. 
  31. ^ a b c Kennedy, D.J (1912). "Sacraments". Catholic Encyclopedia. Robert Appleton Company. Retrieved 2007-11-26. 
  32. ^ Kitzinger, Ernst (1954), The Cult of Images in the Age before Iconoclasm, Dumbarton Oaks , quoted by Jaroslav, Pelikan (1974), The Spirit of Eastern Christendom 600–1700, University of Chicago Press .
  33. ^ Karlin-Hayter, Patricia (2002), Oxford History of Byzantium, Oxford University Press .

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