Excommunication
Overview
Excommunication is a religious censure
Censure
A censure is an expression of strong disapproval or harsh criticism. Among the forms that it can take are a stern rebuke by a legislature, a spiritual penalty imposed by a church, and a negative judgment pronounced on a theological proposition.-Politics:...

 used to deprive, suspend or limit membership in a religious community. The word means putting [someone] out of communion
Communion (Christian)
The term communion is derived from Latin communio . The corresponding term in Greek is κοινωνία, which is often translated as "fellowship". In Christianity, the basic meaning of the term communion is an especially close relationship of Christians, as individuals or as a Church, with God and with...

. In some religions, excommunication includes spiritual condemnation
Damnation
Damnation is the concept of everlasting divine punishment and/or disgrace, especially the punishment for sin as threatened by God . A damned being "in damnation" is said to be either in Hell, or living in a state wherein they are divorced from Heaven and/or in a state of disgrace from God's favor...

 of the member or group. Excommunication may involve banishment
Exile
Exile means to be away from one's home , while either being explicitly refused permission to return and/or being threatened with imprisonment or death upon return...

, shunning
Shunning
Shunning can be the act of social rejection, or mental rejection. Social rejection is when a person or group deliberately avoids association with, and habitually keeps away from an individual or group. This can be a formal decision by a group, or a less formal group action which will spread to all...

, and shaming, depending on the religion, the offense that caused excommunication, or the rules or norms of the religious community.
The Biblical basis of excommunication is .
Timeline

1054    Three Roman legates break relations between Western and Eastern Christian Churches through the act of placing an invalidly-issued Papal Bull of Excommunication on the altar of Hagia Sophia during Saturday afternoon divine liturgy. Historians frequently describe the event as the start of the East-West Schism.

1077    Walk to Canossa: The excommunication of Henry IV, Holy Roman Emperor is lifted.

1227    Frederick II, Holy Roman Emperor, is excommunicated by Pope Gregory IX for his failure to participate in the Crusades.

1497    Pope Alexander VI excommunicates Girolamo Savonarola.

1520    Pope Leo X threatens to excommunicate Martin Luther in papal bull ''Exsurge Domine''.

1965    Pope Paul VI and Patriarch Athenagoras simultaneously lift mutual excommunications that had been in place since 1054.

1979    Sonia Johnson is formally excommunicated by The Church of Jesus Christ of Latter-day Saints for her outspoken criticism of the church concerning the proposed Equal Rights Amendment to the Constitution of the United States.

 
x
OK