In Christian theology, a sodality, also known as a syndiakonia, is a form of the "Universal Church" expressed in specialized, task-oriented form as opposed to the Christian church in its local, diocesan form. In English, the term sodality is most commonly used by groups in the Anglican Communion, Catholic Church, Eastern Orthodox Church, Lutheran Church and Reformed Church, where they are also referred to as confraternities. Sodalities are expressed among Protestant Churches through the multitude of mission organizations, societies, and specialized ministries that have proliferated, particularly since the advent of the modern missions movement, usually attributed to Englishman William Carey in 1792.