Great ApostasyThe Great Apostasy is a concept within Christianity to describe a perception that mainstream Christian Churches have fallen away from the original faith founded by Jesus and promulgated through his twelve Apostles. A belief in a Great Apostasy has been characteristic of the Restorationist tradition of Christianity, which includes unrelated Restorationist groups emerging after the Second Great Awakening, such as the Christadelphians, Latter Day Saints, Jehovah's Witnesses, and Iglesia ni Cristo.
Religious denominationA religious denomination is a subgroup within a religion that operates under a common name and tradition among other activities. The term refers to the various Christian denominations (for example, Eastern Orthodox, Catholic, and the many varieties of Protestantism). It is also used to describe the five major branches of Judaism (Karaite Judaism, Orthodox, Conservative, Reform, and Reconstructionist). Within Islam, it can refer to the branches or sects (such as Sunni, Shia), as well as their various subdivisions such as sub-sects, schools of jurisprudence, schools of theology and religious movements.
Christian ScienceChristian Science is a set of beliefs and practices which are associated with members of the Church of Christ, Scientist. Adherents are commonly known as Christian Scientists or students of Christian Science, and the church is sometimes informally known as the Christian Science church. It was founded in 19th-century New England by Mary Baker Eddy, who wrote the 1875 book Science and Health with Key to the Scriptures, which outlined the theology of Christian Science.
ApostasyApostasy (əˈpɒstəsi; ἀποστασία , 'a defection or revolt') is the formal disaffiliation from, abandonment of, or renunciation of a religion by a person. It can also be defined within the broader context of embracing an opinion that is contrary to one's previous religious beliefs. One who undertakes apostasy is known as an apostate. Undertaking apostasy is called apostatizing (or apostasizing – also spelled apostacizing).
Full communionFull communion is a communion or relationship of full agreement among different Christian denominations or Christian individuals that share certain essential principles of Christian theology. Views vary among denominations on exactly what constitutes full communion, but typically when two or more denominations are in full communion it enables services and celebrations, such as the Eucharist, to be shared among congregants or clergy of any of them with the full approval of each.
CatharismCatharism was a Christian dualist or Gnostic movement between the 12th and 14th centuries which thrived in Southern Europe, particularly in northern Italy and southern France. Followers were described as Cathars and referred to themselves as Good Christians; in modern times, they are mainly remembered for a prolonged period of mutual conflict and religious persecution - sometimes regarded as genocide - by the Catholic Church which deemed Catharism a heretical sect.
Apostolic successionApostolic succession is the method whereby the ministry of the Christian Church is considered by some Christian denominations to be derived from the apostles by a continuous succession, which has usually been associated with a claim that the succession is through a series of bishops. Those of the Anglican, Church of the East, Eastern Orthodox, Hussite, Moravian, Old Catholic, Oriental Orthodox, Catholic and Scandinavian Lutheran traditions maintain that "a bishop cannot have regular or valid orders unless he has been consecrated in this apostolic succession".
Fellowship of ReconciliationThe Fellowship of Reconciliation (FoR or FOR) is the name used by a number of religious nonviolent organizations, particularly in English-speaking countries. They are linked by affiliation to the International Fellowship of Reconciliation (IFOR). In the United Kingdom, the acronym "FoR" is normally typeset with a lower-case "o"; elsewhere, it is usually typeset in all capital letters, as "FOR", such as in "IFOR".
NontrinitarianismNontrinitarianism is a form of Christianity that rejects the mainstream Christian theology of the Trinity—the belief that God is three distinct hypostases or persons who are coeternal, coequal, and indivisibly united in one being, or essence (from the Ancient Greek ousia). Certain religious groups that emerged during the Protestant Reformation have historically been known as antitrinitarian.
History of ChristianityThe history of Christianity concerns the Christian religion, Christian countries, and the Christians with their various denominations, from the 1st century to the present. Christianity originated with the ministry of Jesus, a Jewish teacher and healer who proclaimed the imminent Kingdom of God and was crucified AD 30–33 in Jerusalem in the Roman province of Judea. His followers believe that, according to the Gospels, he was the Son of God and that he died for the forgiveness of sins and was raised from the dead and exalted by God, and will return soon at the inception of God's kingdom.
