page_title: Christendom
section_title: Late Antiquity and Early Middle Ages
hierarchical_section_title: Christendom / History / Late Antiquity and Early Middle Ages
caption_attribution_description: English: Symbolum Nicaeno-Constantinopolitanum. Icon depicting the First Council of Nicaea.Français&#160;: Concile de Nicée (325) représenté sur une icône. Le texte montré est une partie du «&#160;Symbole de Nicée-Constantinople&#160;» dans sa forme liturgique grecque, basée sur le texte adopté au premier concile de Constantinople (381), 56 ans après le Concile de Nicée Transcript: Πιστεύω εἰς ἕνα Θεόν, Πατέρα Παντοκράτορα, ποιητὴν οὐρανοῦ καὶ γῆς, ὁρατῶν τε πάντων καὶ ἀοράτων. Καὶ εἰς ἕνα Κύριον Ἰησοῦν Χριστόν, τὸν Υἱὸν τοῦ Θεοῦ τὸν μονογενῆ, τὸν ἐκ τοῦ Πατρὸς γεννηθέντα πρὸ πάντων τῶν αἰώνων· φῶς ἐκ φωτός, Θεὸν ἀληθινὸν ἐκ Θεοῦ ἀληθινοῦ, γεννηθέντα οὐ ποιηθέντα, ὁμοούσιον τῷ Πατρί, δι οὗ τὰ πάντα ἐγένετο. Τὸν δι ἡμᾶς τοὺς ἀνθρώπους καὶ διὰ τὴν ἡμετέραν σωτηρίαν κατελθόντα ἐκ τῶν οὐρανῶν καὶ σαρκωθέντα ἐκ Πνεύματος Ἁγίου καὶ Μαρίας τῆς Παρθένου καὶ ἐνανθρωπήσαντα. Σταυρωθέντα τε ὑπὲρ ἡμῶν ἐπὶ Ποντίου Πιλάτου, καὶ παθόντα καὶ ταφέντα...
context_page_description: Christendom historically refers to the "Christian world": Christian states, Christian-majority countries and the countries in which Christianity dominates or prevails.
  Since the spread of Christianity from the Levant to Europe and North Africa during the early Roman Empire, Christendom has been divided in the pre-existing Greek East and Latin West. Consequently, different versions of the Christian religion arose with their own beliefs and practices, centred around the cities of Rome and Constantinople. From the 11th to 13th centuries, Latin Christendom rose to the central role of the Western world.
  The term usually refers to the Middle Ages and to the Early Modern period during which the Christian world represented a geopolitical power that was juxtaposed with both the pagan and especially the Muslim world.
context_section_description: "Christendom" has referred to the medieval and renaissance notion of the Christian world as a sociopolitical polity. In essence, the earliest vision of Christendom was a vision of a Christian theocracy, a government founded upon and upholding Christian values, whose institutions are spread through and over with Christian doctrine. In this period, members of the Christian clergy wield political authority. The specific relationship between the political leaders and the clergy varied but, in theory, the national and political divisions were at times subsumed under the leadership of the church as an institution. This model of church-state relations was accepted by various Church leaders and political leaders in European history.
  The Church gradually became a defining institution of the Empire. Emperor Constantine issued the Edict of Milan in 313 proclaiming toleration for the Christian religion, and convoked the First Council of Nicaea in 325 whose Nicene Creed included belief in "one holy catholic and apostolic Church". Emperor Theodosius I made Nicene Christianity the state church of the Roman Empire with the Edict of Thessalonica of 380.
  As the Western Roman Empire disintegrated into feudal kingdoms and principalities, the concept of Christendom changed as the western church became one of five patriarchates of the Pentarchy and the Christians of the Eastern Roman Empire developed. The Byzantine Empire was the last bastion of Christendom. Christendom would take a turn with the rise of the Franks, a Germanic tribe who converted to the Christian faith and entered into communion with Rome.
  On Christmas Day 800 AD, Pope Leo III crowned Charlemagne resulting in the creation of another Christian king beside the Christian emperor in the Byzantine state. The Carolingian Empire created a definition of Christendom in juxtaposition with the Byzantine Empire, that of a distributed versus centralized culture respectively.
  The classical heritage flourished throughout the Middle Ages in both the Byzantine Greek East and the Latin West. In the Greek philosopher Plato's ideal state there are three major classes, which was representative of the idea of the “tripartite soul”, which is expressive of three functions or capacities of the human soul: “reason”, “the spirited element”, and “appetites” (or “passions”). Will Durant  made a convincing case that certain prominent features of Plato's ideal community where discernible in the organization, dogma and effectiveness of "the" Medieval Church in Europe:
  ... For a thousand years Europe was ruled by an order of guardians considerably like that which was visioned by our philosopher. During the Middle Ages it was customary to classify the population of Christendom into laboratores (workers), bellatores (soldiers), and oratores (clergy). The last group, though small in number, monopolized the instruments and opportunities of culture, and ruled with almost unlimited sway half of the most powerful continent on the globe. The clergy, like Plato's guardians, were placed in authority... by their talent as shown in ecclesiastical studies and administration, by their disposition to a life of meditation and simplicity, and ... by the influence of their relatives with the powers of state and church. In the latter half of the period in which they ruled [800 AD onwards], the clergy were as free from family cares as even Plato could desire [for such guardians]... [Clerical] Celibacy was part of the psychological structure of the power of the clergy; for on the one hand they were unimpeded by the narrowing egoism of the family, and on the other their apparent superiority to the call of the flesh added to the awe in which lay sinners held them.... In the latter half of the period in which they ruled, the clergy were as free from family cares as even Plato could desire.
caption: Icon depicting the Emperor Constantine and the bishops of the First Council of Nicaea (AD 325) holding the Niceno–Constantinopolitan Creed of 381.
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