Christianity is an Abrahamic monotheistic religion, professing that Jesus Christ was raised from the dead and is the Son of God, whose coming as the Messiah was prophesied in the Hebrew Bible and chronicled in the New Testament. It is the world's largest and most widespread religion with over 2.4 billion followers, comprising around 31.2% of the world population. Its adherents, known as Christians, are estimated to make up a majority of the population in 157 countries and territories.
Christendom refers to Christian states, Christian-majority countries or countries in which Christianity is dominant or prevails.
The history of Christianity begins with the ministry of Jesus, a Jewish teacher and healer who was crucified and died c. AD 30–33 in Jerusalem in the Roman province of Judea. Afterwards, his followers, a set of apocalyptic Jews, proclaimed him risen from the dead. Christianity began as a Jewish sect and remained so for centuries in some locations, diverging gradually from Judaism over doctrinal, social and historical differences. In spite of the persecution of Christians in the Roman Empire, the faith spread as a grassroots movement that became established by the third-century both in and outside the empire. New Testament texts were written and church government was loosely organized in its first centuries, though the biblical canon did not become official until 382.
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the Post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages.
The persecution of Christians can be historically traced from the first century of the Christian era to the present day. Christian missionaries and converts to Christianity have both been targeted for persecution, sometimes to the point of being martyred for their faith, ever since the emergence of Christianity.
Eastern Christianity comprises Christian traditions and church families that originally developed during classical and late antiquity in the Eastern Mediterranean region or locations further east, south or north. The term does not describe a single communion or religious denomination. Eastern Christianity is a category distinguished from Western Christianity, which is composed of those Christian traditions and churches that originally developed further west.
Religious nationalism can be understood in a number of ways, such as nationalism as a religion itself, a position articulated by Carlton Hayes in his text Nationalism: A Religion, or as the relationship of nationalism to a particular religious belief, dogma, ideology, or affiliation. This relationship can be broken down into two aspects: the politicisation of religion and the influence of religion on politics.
The Constantinian shift was, according to some theologians and historians of antiquity, a set of political and theological changes that took place during the 4th-century under the leadership of Emperor Constantine the Great. Rodney Clapp claims that the shift or change started in the year 200. The term was popularized by the Mennonite theologian John H. Yoder. He claims that the change was not just freedom from persecution but an alliance between the State and the Church that led to a kind of Caesaropapism. The claim that there ever was a Constantinian shift has been disputed; Peter Leithart argues that there was a "brief, ambiguous 'Constantinian moment' in the fourth century", but that there was "no permanent, epochal 'Constantinian shift'".
The Western religions are the religions that originated within Western culture, which are thus historically, culturally, and theologically distinct from Eastern, African and Iranian religions. The term Abrahamic religions is often used instead of using the East and West terminology, as these originated in the Middle East.
During the reign of the Roman emperor Constantine the Great (306–337 AD), Christianity began to transition to the dominant religion of the Roman Empire. Historians remain uncertain about Constantine's reasons for favoring Christianity, and theologians and historians have often argued about which form of early Christianity he subscribed to. There is no consensus among scholars as to whether he adopted his mother Helena's Christianity in his youth, or, as claimed by Eusebius of Caesarea, encouraged her to convert to the faith he had adopted.
Christianity is the predominant religion in Europe. Christianity has been practiced in Europe since the first century, and a number of the Pauline Epistles were addressed to Christians living in Greece, as well as other parts of the Roman Empire.
Christianity in Asia has its roots in the very inception of Christianity, which originated from the life and teachings of Jesus in 1st-century Roman Judea. Christianity then spread through the missionary work of his apostles, first in the Levant and taking roots in the major cities such as Jerusalem and Antioch. According to tradition, further eastward expansion occurred via the preaching of Thomas the Apostle, who established Christianity in the Parthian Empire (Iran) and India. The very First Ecumenical Council was held in the city of Nicaea in Asia Minor (325). The first nations to adopt Christianity as a state religion were Armenia in 301 and Georgia in 327. By the 4th century, Christianity became the dominant religion in all Asian provinces of the Eastern Roman Empire.
A Christian is a person who follows or adheres to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. Christians form the largest religious community in the world. The words Christ and Christian derive from the Koine Greek title Christós, a translation of the Biblical Hebrew term mashiach (מָשִׁיחַ). While there are diverse interpretations of Christianity which sometimes conflict, they are united in believing that Jesus has a unique significance. The term Christian used as an adjective is descriptive of anything associated with Christianity or Christian churches, or in a proverbial sense "all that is noble, and good, and Christ-like."
In the 9th century, Christianity was spreading throughout Europe, being promoted especially in the Carolingian Empire, its eastern neighbours, Scandinavia, and northern Spain. In 800, Charlemagne was crowned as Holy Roman Emperor, which continued the Photian schism.
The Eastern Roman (Byzantine) imperial church headed by Constantinople continued to assert its universal authority. By the 13th century this assertion was becoming increasingly irrelevant as the Eastern Roman Empire shrank and the Ottoman Turks took over most of what was left of the Byzantine Empire. The other Eastern European churches in communion with Constantinople were not part of its empire and were increasingly acting independently, achieving autocephalous status and only nominally acknowledging Constantinople's standing in the Church hierarchy. In Western Europe the Holy Roman Empire fragmented making it less of an empire as well.
Christianity in the Middle Ages covers the history of Christianity from the fall of the Western Roman Empire. The end of the period is variously defined - depending on the context, events such as the conquest of Constantinople by the Ottoman Empire in 1453, Christopher Columbus's first voyage to the Americas in 1492, or the Protestant Reformation in 1517 are sometimes used.
In the year before the Council of Constantinople in 381, Christianity became the official religion of the Roman Empire when Emperor Theodosius I issued the Edict of Thessalonica in 380, which recognized the catholic orthodoxy of Nicene Christians as the Roman Empire's state religion. Historians refer to the Nicene church associated with emperors in a variety of ways: as the catholic church, the orthodox church, the imperial church, the Roman church, or the Byzantine church, although some of those terms are also used for wider communions extending outside the Roman Empire. The Eastern Orthodox Church, Oriental Orthodoxy, and the Catholic Church all claim to stand in continuity from the Nicene church to which Theodosius granted recognition.
A Christian state is a country that recognizes a form of Christianity as its official religion and often has a state church, which is a Christian denomination that supports the government and is supported by the government.
Arab nationalism is a political ideology asserting that Arabs constitute a single nation. As a traditional nationalist ideology, it promotes Arab culture and civilization, celebrates Arab history, the Arabic language and Arabic literature. It often also calls for unification of Arab society. It bases itself on the premise that the people of the Arab world—from the Atlantic Ocean to the Arabian Sea—constitute one nation bound together by a common identity: ethnicity, language, culture, history, geography, and politics.
Pan-Arabism is a pan-nationalist ideology that espouses the unification of all Arab people in a single nation-state, consisting of all Arab countries of West Asia and North Africa from the Atlantic Ocean to the Arabian Sea, which is referred to as the Arab world. It is closely connected to Arab nationalism, which asserts the view that the Arabs constitute a single nation. It originated in the late 19th century among the Arab regions of the Ottoman Empire, and its popularity reached its height during the peak of Nasserism and Ba'athism in the 1950s and 1960s. Advocates of pan-Arabism have often espoused Arab socialist principles and strongly opposed the political involvement of the Western world in the Arab world. It also sought to empower Arab states against outside forces by forming alliances such as the Arab League.
